Article
Chemistry, Applied
Yi Zhang, Yan Wang, Zhilong He, Siyuan Li, Tong Shan, Lei Zhu, Hongliang Zhong
Summary: This study investigates the effect of non-covalent interaction on the photostability of narrow-bandgap non-fullerene acceptors (NFAs). By designing and synthesizing compounds with different configurations, it is found that non-covalent interaction can improve the photostability of NFAs. This is a promising approach.
Article
Chemistry, Multidisciplinary
Tao Zhang, Cunbin An, Ye Xu, Pengqing Bi, Zhihao Chen, Jingwen Wang, Ni Yang, Yi Yang, Bowei Xu, Huifeng Yao, Xiaotao Hao, Shaoqing Zhang, Jianhui Hou
Summary: The correlation between molecular structure and photovoltaic performance is investigated using two medium-bandgap nonfullerene acceptors. The study finds that a large electrostatic potential difference is important for achieving high-performance OPV cells.
ADVANCED MATERIALS
(2022)
Article
Engineering, Environmental
Linjiao Qin, Xianda Li, Chuanqi Dong, Jialing Zhou, Qiang Guo, Ailing Tang, Yufei Zhong, Erjun Zhou
Summary: Developing low-cost photovoltaic materials, such as p-type polymers and n-type small molecules, for organic photovoltaic (OPV) cells is challenging. Non-fused nonfullerene acceptors have been attracting attention due to their simple synthesis and easy modification. In this study, a completely non-fused nonfullerene acceptor, Cl-BTA33, was designed and combined with a classic low-cost polymer, PTQ10, resulting in improved efficiency for outdoor and indoor applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Elisabet De Bolos, Marta Martinez-Abadia, Felix Hernandez-Culebras, Alison Haymaker, Kyle Swain, Karol Strutynski, Benjamin L. Weare, Javier Castells-Gil, Natalia M. Padial, Carlos Marti-Gastaldo, Andrei N. Khlobystov, Akinori Saeki, Manuel Melle-Franco, Brent L. Nannenga, Aurelio Mateo-Alonso
Summary: The synthesis of crystalline one-dimensional polymers is important for understanding the structure-property relationship in polymeric materials and creating materials with enhanced properties. In this study, a crystalline one-dimensional polymer was successfully synthesized in solution using dynamic covalent chemistry. The structure of the polymer was confirmed by microcrystal electron diffraction, and charge transport studies and theoretical calculations showed the optimal channels for charge transport in the polymer's stacked chains.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Elisabet De Bolos, Marta Martinez-Abadia, Felix Hernandez-Culebras, Alison Haymaker, Kyle Swain, Karol Strutynski, Benjamin L. Weare, Javier Castells-Gil, Natalia M. Padial, Carlos Marti-Gastaldo, Andrei N. Khlobystov, Akinori Saeki, Manuel Melle-Franco, Brent L. Nannenga, Aurelio Mateo-Alonso
Summary: This study reports the synthesis of a crystalline one-dimensional polymer in solution by dynamic covalent chemistry, with the structure of the polymer confirmed by microcrystal electron diffraction, showing how the stacked chains of the polymer generate optimal channels for charge transport.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Xiaohui Xu, Yang Gao, Qi Yang, Tao Liang, Bin Luo, Debin Kong, Xianglong Li, Linjie Zhi, Bin Wang
Summary: In this study, researchers introduced chemical groups with different electron-withdrawing abilities into oxidized carbon catalysts as additional regulation factors, aiming to break the catalytic limit. Results showed that the catalytic activity was positively associated with the electron-withdrawing ability of the additional groups. The well-tailored COF-CN achieved an ultrahigh H2O2 selectivity and yield, allowing it to be directly used for wood pulping and waste paper recycling. This additional chemical influence design has universal potential beyond the current electrocatalytic limit.
Article
Chemistry, Physical
Mateusz Pokora, Agata Paneth, Piotr Paneth
Summary: In this Perspective, examples of isotope effects originating from noncovalent interactions, such as hydrogen bonding, electrostatics, and confinement, are presented. These effects have been traditionally used in isotopic enrichment processes and studying mechanisms of (bio)chemical and physical phenomena. The article also explores the emerging applications of isotope effects in medical and material sciences, highlighting the need for new effective techniques for isotopic purification.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Ha L. Nguyen, Ahmed Alzamly
Summary: Covalent organic frameworks (COFs) are a new class of porous crystalline materials with semiconductor properties, showing promising performance in CO2 photoreduction catalysis. Principles of design and recent advancements in using COFs for CO2 photoreduction can serve as a reference for developing CO2 reduction catalysts.
Article
Engineering, Environmental
Xinran Li, Lu Zhang, Shu Niu, Zhaojun Dong, Cong Lyu
Summary: This study investigates the enhanced visible-light photocatalytic performance of triazine-based covalent organic frameworks (CTFs) by tuning the ketone content. The introduction of electron-rich ketone groups narrows the bandgap, reduces electron-hole recombination, and increases charge transfer and quantum yield. The keto-CTF outperforms other keto-CTFs in the degradation of tetracycline, with a 3.69 times higher apparent rate constant. Furthermore, the study sheds light on how ketone content regulates the bandgap structure, affects reactive species, and quantitatively enhances the photocatalytic performance of CTFs, providing valuable insights into the design and synthesis of CTFs-based catalyst structures for efficient visible-light photocatalytic degradation of organic pollutants.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Physical
Yong-Mei Wang, Xinxin Zhang, Cunshun Liu, Liting Wu, Jiaojiao Zhang, Tianmin Lei, Yong Wang, Xue-Bo Yin, Rusen Yang
Summary: A metal-organic framework (MOF) called UiO66-4F has been designed and synthesized with strong electron-withdrawing groups, which greatly improves the performance of MOF-based triboelectric nanogenerators (TENGs). The UiO-66-4F@PDMS TENG exhibits a power density 77.5 times higher than that of a regular PDMS TENG and achieves a record voltage output of 937 V in MOFs-based TENGs. It also has high flexibility, good transparency, and can charge commercial capacitors and power commercial LEDs.
Article
Chemistry, Physical
Yuxiang Chen, Xiao Luo, Jiejie Zhang, Lu Hu, Ting Xu, Wei Li, Lei Chen, Mao Shen, Shi-Bin Ren, De-Man Han, Guo-Hong Ning, Dan Li
Summary: The study demonstrates that by manipulating the molecular structure of covalent organic frameworks (COFs), it is possible to enhance their photocatalytic performance, leading to improved efficiency in solar light-promoted hydrogen production from water.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Applied
Yafeng Liu, Xiaoyuan Chen, Min Zhang, Ruofei Hao, Songting Tan
Summary: Two copolymer donors, VT and VDT, based on TVT and TTVTT derivatives, were synthesized and applied for OSCs. The extension of conjugation was found to affect the optical and electronic properties, molecular aggregation, charge separation, and overall photovoltaic performances. OSCs based on VDT:Y6 and VT:Y6 achieved optimal PCEs of 12.67% and 8.85%, respectively, without any additives or post-solvent/thermal annealing processes. These results highlight the effectiveness of extending the π-electron delocalization of copolymer donors to enhance device performances.
Article
Chemistry, Physical
Deepak Patkar, Milind M. Deshmukh, Deepak Chopra
Summary: In this study, a comprehensive evaluation of different types of non-covalent interactions (NCIs) in acetaldehyde dimers was conducted through the associated stabilization energy. The nature of these NCIs was further analyzed using the quantum theory of atoms in molecules (QTAIM) and non-covalent interaction reduced density gradient (NCI-RDG) isosurfaces. The presence of electron-donating and electron-withdrawing groups in the dimers was considered, and specific tetrel bonded contacts were identified as important for stabilization. It was found that the overall stability of the dimeric assemblies is influenced by a variety of interactions, and a slight change in the electronic environment can affect the stabilization energies and the nature of the contributing interactions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Yongxin Yang, Conghui Zhang, Genfu Zhao, Qi An, Zhi-yuan Mei, Yongjiang Sun, Qijun Xu, Xiaofeng Wang, Hong Guo
Summary: An artificial solid electrolyte interphase (ASEI) constructed by NO2-COF is designed to regulate Li+ deposition and stable Li anodes. It achieves uniform Li+ deposition and inhibition of Li dendrites, leading to ultra-long cycling life and stable capacity retention in Li metal batteries.
ADVANCED ENERGY MATERIALS
(2023)
Article
Polymer Science
Asif Mahmood, Ahmad Irfan, Jin-Liang Wang
Summary: Through computational analysis and molecular dynamics simulations, the effect of chalcogen atoms on polymer solar cell materials was studied. It was found that sulfur and selenium-based polymers have higher density of states and closer molecular packing, thus having the potential for practical design of efficient polymer solar cells.
Article
Chemistry, Physical
Yuniu Zhang, Jiawei Zheng, Zhengyan Jiang, Xinjun He, Jinwook Kim, Luhang Xu, Minchao Qin, Xinhui Lu, Aung Ko Ko Kyaw, Wallace C. H. Choy
Summary: Researchers demonstrate a facile approach of introducing pre-located Ag nanoparticles (NPs) with optimized ligands to form high-performance transparent electrodes. This approach not only guides the growth of evaporated Ag clusters to form high-quality transparent electrodes, but also reduces mis-stacking defects of the electron transport layer and improves carrier transportation/extraction. By using this method, a semi-transparent organic solar cell achieves a remarkable power conversion efficiency of 12.80% and provides potential for practical applications.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ziyuan Chen, Qinrong Cheng, Haiyang Chen, Yeyong Wu, Junyuan Ding, Xiaoxiao Wu, Heyi Yang, Heng Liu, Weijie Chen, Xiaohua Tang, Xinhui Lu, Yaowen Li, Yongfang Li
Summary: Flexible perovskite solar cells (pero-SCs) have the potential to complement traditional silicon SCs in portable power applications. However, their stability issues hinder practical use. A new strategy using cross-linkable monomer TA-NI as ligaments on perovskite grain boundaries is developed to improve their stability and efficiency. The resulting flexible pero-SCs show promising improvements in efficiency and stability, paving the way for industrial-scale development.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Lu Chen, Jicheng Yi, Ruijie Ma, Lu Ding, Top Archie Dela Pena, Heng Liu, Jian Chen, Cuifen Zhang, Chaoyue Zhao, Wen Lu, Qi Wei, Bin Zhao, Huawei Hu, Jiaying Wu, Zaifei Ma, Xinhui Lu, Mingjie Li, Guangye Zhang, Gang Li, He Yan
Summary: Currently, the use of benzo-dithiophene (BDT) units is dominating the development of high-efficiency organic photovoltaic devices. However, researchers have explored the use of benzo-difuran (BDF) units to diversify the choices of building blocks for donor polymers. In this study, a BDF-based polymer donor achieved the highest efficiency reported for BDF donor materials (18.4%) with the aid of a solid additive (2-chloronaphthalene), which showed significant effects in optimizing morphology and enhancing device parameters.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ruijie Ma, Qunping Fan, Top Archie Dela Pena, Baohua Wu, Heng Liu, Qiang Wu, Qi Wei, Jiaying Wu, Xinhui Lu, Mingjie Li, Wei Ma, Gang Li
Summary: All-polymer solar cells (All-PSCs) are considered the most promising candidate in achieving both efficient and stable organic photovoltaic devices. This study builds a ternary matrix with optimized morphology, improved film ductility, boosted efficiency, and better operational stability than its parental binary counterparts.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Tongle Xu, Zhenghui Luo, Ruijie Ma, Zhanxiang Chen, Top Archie Dela Pena, Heng Liu, Qi Wei, Mingjie Li, Cai'e Zhang, Jiaying Wu, Xinhui Lu, Gang Li, Chuluo Yang
Summary: This study investigates the design principles of small molecule acceptors (SMAs) for organic solar cells (OSCs) and reveals that the introduction of chlorine atoms can reduce intramolecular charge transfer effects while increasing LUMO values. Among the studied SMAs, Py5 with two chlorine atoms and Py2 with ortho chlorine substitution exhibit the best performance due to their larger dipole moments and smaller pi center dot center dot center dot pi stacking distances, which enable more efficient packing and aggregation behavior.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Multidisciplinary Sciences
Han Yu, Yan Wang, Xinhui Zou, Junli Yin, Xiaoyu Shi, Yuhao Li, Heng Zhao, Lingyuan Wang, Ho Ming Ng, Bosen Zou, Xinhui Lu, Kam Sing Wong, Wei Ma, Zonglong Zhu, He Yan, Shangshang Chen
Summary: In this study, a poly(fullerene-alt-xylene) acceptor (PFBO-C12) was used as a guest component in ternary organic solar cells to achieve a significant increase in efficiency from 16.9% to 18.0%. The results showed that PFBO-C12 facilitated hole transfer and suppressed charge recombination while maintaining a favorable morphology with high crystallinity and smaller domain size. Additionally, the introduction of PFBO-C12 reduced voltage loss and improved the light stability and mechanical durability of all-polymer solar cells.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Jiehao Fu, Patrick W. K. Fong, Heng Liu, Chieh-Szu Huang, Xinhui Lu, Shirong Lu, Maged Abdelsamie, Tim Kodalle, Carolin M. Sutter-Fella, Yang Yang, Gang Li
Summary: The authors achieved the suppression of non-radiative recombination loss and improved the performance of organic solar cells by regulating the self-organization of bulk-heterojunction in a non-monotonic manner. The efficiency of the organic solar cells reached over 19% with a low non-radiative recombination loss of 0.168 eV.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Jing Guo, Beibei Qiu, Xinxin Xia, Jinyuan Zhang, Shucheng Qin, Xiaojun Li, Xinhui Lu, Lei Meng, Zhanjun Zhang, Yongfang Li
Summary: By adjusting the thermal annealing treatment conditions and compositions of mixed acceptors, a desirable hierarchical morphology is achieved in ternary small-molecule organic solar cells (SM-OSCs). The optimized morphology enables efficient charge generation and extraction, leading to an excellent power conversion efficiency of 17.06%. Furthermore, the ternary SM-OSCs show high tolerance to device fabrication conditions and film thickness, making them suitable for large-area manufacture and future practical applications.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Zhaotong Qin, Minchao Qin, Xinhui Lu
Summary: In this study, a vacuum-drying strategy in the two-step method was employed to fabricate low-lead perovskite solar cells with an impressive efficiency of 19.67%. The vacuum treatment induced the formation of low crystalline Pb0.3Sn0.7I2 films containing less solvent, thereby facilitating FAI penetration and suppressing pinholes. Compared to the conventional one-step method, the two-step fabricated low-lead perovskite films with vacuum-drying treatment exhibited larger grain size, lower trap density, weaker recombination loss, resulting in better thermal stability and a record-high efficiency near 20%.
Article
Energy & Fuels
Shufang Li, Changzhou Shi, Xiaoyan Luo, Dongxu Li, Xinhui Lu, Yunbin Hu, Jun Yuan, Yingping Zou
Summary: A high-performance pseudo-bilayer heterojunction (PBHJ) organic solar cell with donor:acceptor (D:A) bilayer architecture is reported. The pseudo-bilayer films enable vertical distribution of cascaded components and large D/A interfaces for efficient exciton dissociation. The devices based on PM6:Y6 and PTQ10:Y6 exhibit high power conversion efficiencies of 17.73% and 17.81%, respectively.
Article
Chemistry, Multidisciplinary
Yuhao Li, Minchao Qin, Yunfan Wang, Shiang Li, Zhaotong Qin, Sai-Wing Tsang, Chun-Jen Su, Yubin Ke, Xinhui Lu
Summary: In this research, the phase transition behavior of cesium lead iodide (CsPbI3) quantum dot (QD) films under different temperature profiles was investigated using in situ scattering techniques. It was found that the phase transition from black phase to yellow phase can be induced by the instant heating-up (IHU) process, while the majority of QDs remained in the black phase under the slow heating-up (SHU) process. Further analysis revealed that the phase transition is triggered by the removal of surface ligands, which alters the energy landscape. The lattice symmetry plays a crucial role in determining the transition rate and the coexistence black-to-yellow phase ratio. Therefore, the lattice symmetry can be used as an indicator to monitor the phase transition of CsPbI3 QDs and adjust the coexistence ratio for specific applications.
Article
Chemistry, Multidisciplinary
Jiawei Zheng, Xinjun He, Yuniu Zhang, Benzheng Lyu, Jinwook Kim, Shiang Li, Xinhui Lu, Haibin Su, Wallace C. H. Choy
Summary: Solution-processed top electrodes using metallic nanoparticles have been proposed for the large-scale industrialization of organic solar cells (OSCs). A compact-packing-enabled fabrication approach is introduced for the efficient stacking and sintering of metallic nanoparticles, leading to high conductivity and high reflectance top electrodes. The use of gallic acid-assisted silver nanoparticles (AgNPs) results in high-quality AgNP films with uniform particle size distribution and superior storage stability, enabling the achievement of a record high efficiency of 14.69% for large-area solution-processed OSCs.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Hailin Yu, Jiayu Wang, Qiao Zhou, Jiaqiang Qin, Yinghan Wang, Xinhui Lu, Pei Cheng
Summary: Organic photovoltaics (OPVs) are considered as a promising solution to environmental problems and energy challenges. Semi-transparent OPVs (STOPVs) are one of the most possible commercialized forms of OPVs, with power conversion efficiency over 14% and average visible light transmittance over 20%. This tutorial review summarizes the device structures, operating principles, and evaluation parameters of STOPVs, proposes strategies to construct high-performance STOPVs, and discusses potential applications and challenges for the future commercialization of STOPVs.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Chemistry, Physical
Yina Zheng, Yao Wu, Zhihao Chen, Xinxin Xia, Yawen Li, Qiang Wu, Yuze Lin, Xinhui Lu, Xiaotao Hao, Jie Min
Summary: The device performance of polymer solar cells (PSCs) is closely related to the microstructure of the active layer. Using a conjugated-block copolymer (CBC) as the active layer, we compared its photovoltaic performance with that of the bulk heterojunction (BHJ) system. Although both systems show high device efficiencies, the contributions of relevant photovoltaic parameters are different. Our work demonstrates that CBC materials are promising for reducing the efficiency-stability gap of PSCs, compared to BHJ systems.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Hua Tang, Zhihui Liao, Safakath Karuthedath, Si Chen, Heng Liu, Jafar I. I. Khan, Maxime Babics, Wenchao Yang, Maryam Alqurashi, Yakun He, Julien Gorenflot, Jiaming Huang, Gang Li, Stefaan De Wolf, Xinhui Lu, Christoph J. J. Brabec, Frederic Laquai, Shirong Lu
Summary: Random terpolymerization is an effective method for highly efficient and outdoor-stable terpolymer photovoltaics. Spectroscopic, morphological, and computational studies are conducted to reveal the structure-property relationships and key rules for achieving high performance. It is found that introducing a strong electron-deficient or electron-rich third component can broaden absorption and minimize non-radiative voltage losses. Additionally, the third component should manipulate the miscibility of the donor/acceptor towards a thermodynamically stable morphology. The content of the third component should be optimized to maintain molecular orientation and exciton diffusion length, reducing bimolecular carrier recombination. Terpolymer solar cells based on D18 and PM6 show enhanced power conversion efficiency and excellent outdoor stability. These findings provide a rationale for achieving high-performance and outdoor-stable terpolymer photovoltaics, leading the way to commercialization.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Applied
Maoyi Yi, Jie Li, Mengran Wang, Xinming Fan, Bo Hong, Zhian Zhang, Aonan Wang, Yanqing Lai
Summary: In this study, polyacrylic acid (PAA) was used as a binder for the cathode in all-solid-state batteries. Through H+/Li+ exchange reaction, a uniform PAA-Li coating layer was formed on the cathode surface, improving the stability of the cathodic interface and the crystal structure. The SC-NCM83-PAA cathode exhibited superior cycling performance compared to traditional PVDF binder.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Yonghan Zhou, Zhongfeng Ji, Wenrui Cai, Xuewei He, Ruiying Bao, Xuewei Fu, Wei Yang, Yu Wang
Summary: By learning from the pencil-writing process, a solid-ink rubbing technology (SIR-tech) has been invented to develop durable metallic coatings on diverse substrates. The composite metallic skin by SIR-tech outperforms pure liquid-metal coating and shows great potential for various applications.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Ruiqi Tian, Hehe Zhang, Zeyu Yuan, Yuehua Man, Jianlu Sun, Jianchun Bao, Ming-Sheng Wang, Xiaosi Zhou
Summary: In this study, polypyrrole-encapsulated Sb2WO6 microflowers were synthesized and demonstrated to exhibit excellent potassium storage properties and cycling stability. The improved performance of Sb2WO6@PPy was attributed to the unique microflower structure, enhanced electronic conductivity, and protective PPy coating.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Review
Chemistry, Applied
Longxing Wu, Zhiqiang Lyu, Zebo Huang, Chao Zhang, Changyin Wei
Summary: This paper presents a comprehensive survey on physics-based state of charge (SOC) algorithms applied in advanced battery management system (BMS). It discusses the research progresses of physical SOC estimation methods for lithium-ion batteries and presents future perspectives for this field.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Honggang Huang, Yao Chen, Hui Fu, Cun Chen, Hanjun Li, Zhe Zhang, Feili Lai, Shuxing Bai, Nan Zhang, Tianxi Liu
Summary: The d-d orbital coupling induced by crystal-phase engineering effectively adjusts the electronic structure of electrocatalysts, improving their activity and stability, which is significant for electrocatalyst research.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Quanzhen Sun, Yifan Li, Caixia Zhang, Shunli Du, Weihao Xie, Jionghua Wu, Qiao Zheng, Hui Deng, Shuying Cheng
Summary: In this study, indium (In) ions were introduced into flexible Cu2ZnSn(S,Se)(4) (CZTSSe) solar cells to modify the back interface and passivate deep level defects in CZTSSe bulk. The results showed that In doping effectively inhibited the formation of secondary phase and V-Sn defects, decreased the barrier height at the back interface, passivated deep level defects in CZTSSe bulk, increased carrier concentration, and significantly reduced the V-OC deficit. Eventually, a flexible CZTSSe solar cell with a power conversion efficiency of 10.01% was achieved. This synergistic strategy of interface modification and bulk defects passivation through In incorporation provides a new approach for fabricating efficient flexible kesterite-based solar cells.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Negah Hashemi, Jafar Hussain Shah, Cejun Hu, Subhajit Nandy, Pavlo Aleshkevych, Sumbal Farid, Keun Hwa Chae, Wei Xie, Taifeng Liu, Junhu Wang, Mohammad Mahdi Najafpour
Summary: This study investigates the effects of Fe on the oxygen-evolution reaction (OER) in the presence of Au. The study identifies two distinct areas of OER associated with Fe and Au sites at different overpotentials. Various factors were varied to observe the behaviors of FeOxHy/Au during OER. The study reveals strong electronic interaction between Fe and Au, and proposes a lattice OER mechanism based on FeOxHy.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Yingshi Su, Yonghui Cheng, Zhen Li, Yanjia Cui, Caili Yang, Ziyi Zhong, Yibing Song, Gongwei Wang, Lin Zhuang
Summary: This study systematically investigates the key roles of Nafion on Cu nanoparticles electrocatalyst for CO2RR. The Nafion modifier suppresses the hydrogen evolution reaction, increases CO2 concentration and mass transfer process, and activates CO2 molecule to enhance C2 product generation. As a result, the selectivity of the hydrogen evolution reaction is reduced and the efficiency of C2 products is significantly improved.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Daijie Deng, Honghui Zhang, Jianchun Wu, Xing Tang, Min Ling, Sihua Dong, Li Xu, Henan Li, Huaming Li
Summary: By doping sulfur into vanadium nitride, the S-VN/Co/NS-MC catalyst exhibits enhanced oxygen reduction reaction activity and catalytic performance. When applied in liquid and flexible ZABs, it shows higher power density, specific capacity, and cycling stability.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Review
Chemistry, Applied
Yi Li, Fei Zhang
Summary: Self-assembly of metal halide perovskite nanocrystals holds significant application value in the fields of display, detector, and solar cell due to their unique collective properties. This review covers the driving forces, commonly used methods, and different self-assembly structures of perovskite nanocrystals. Additionally, it summarizes the collective optoelectronic properties and application areas of perovskite superlattice structures, and presents an outlook on potential issues and future challenges in the development of perovskite nanocrystals.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Anki Reddy Mule, Bhimanaboina Ramulu, Shaik Junied Arbaz, Anand Kurakula, Jae Su Yu
Summary: Direct growth of redox-active noble metals and rational design of multifunctional electrochemical active materials play crucial roles in developing novel electrode materials for energy storage devices. In this regard, silver (Ag) has attracted great attention in the design of efficient electrodes. The construction of multifaceted heterostructure cobalt-iron hydroxide (CFOH) nanowires (NWs)@nickel cobalt manganese hydroxides and/or hydrate (NCMOH) nanosheets (NSs) on the Ag-deposited nickel foam and carbon cloth (i.e., Ag/ NF and Ag/CC) substrates is reported. The as-fabricated Ag@CFOH@NCMOH/NF electrode delivered superior areal capacity value of 2081.9 μA h cm-2 at 5 mA cm-2. Moreover, as-assembled hybrid cell based on NF (HC/NF) device exhibited remarkable areal capacity value of 1.82 mA h cm-2 at 5 mA cm-2 with excellent rate capability of 74.77% even at 70 mA cm-2. Furthermore, HC/NF device achieved maximum energy and power densities of 1.39 mW h cm-2 and 42.35 mW cm-2, respectively. To verify practical applicability, both devices were also tested to serve as a self-charging station for various portable electronic devices.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Zanling Huang, Shuqi Zhu, Yuan Duan, Chaoran Pi, Xuming Zhang, Abebe Reda Woldu, Jing-Xin Jian, Paul K. Chu, Qing-Xiao Tong, Liangsheng Hu, Xiangdong Yao
Summary: In this study, it was found that Ni sites act as a host to attract Fe(III) to form Fe(Ni)(III) binary centers, which promote the oxygen evolution reaction (OER) activity and stability by cyclical formation of intermediates. Additionally, other ions can also catalyze the OER process on different electrodes.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Jie Zeng, Jian Bao, Ya Zhang, Xun-Lu Li, Cui Ma, Rui-Jie Luo, Chong-Yu Du, Xuan Xu, Zhe Mei, Zhe Qian, Yong-Ning Zhou
Summary: The balance between cationic redox and oxygen redox is crucial for achieving high energy density and cycle stability in sodium batteries. This study demonstrates the reversible Mn2+/Mn4+ redox in a P3-Na0.65Li0.2Co0.05Mn0.75O2 cathode material through Co substitution, effectively suppressing the contribution of oxygen redox and improving structure stability.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Daniela M. Josepetti, Bianca P. Sousa, Simone A. J. Rodrigues, Renato G. Freitas, Gustavo Doubek
Summary: Lithium-oxygen batteries have high energy density potential but face challenges in achieving high cyclability. This study used operando Raman experiments and electrochemical impedance spectroscopy to evaluate the initial discharge processes in porous carbon electrodes. The results indicate that the reaction occurs at the Li2O2 surface and the growth of Li2O2 forms a more compact and homogeneous structure.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Ziqi Zhang, Jinyun Xu, Yu Zhang, Liping Zhao, Ming Li, Guoqiang Zhong, Di Zhao, Minjing Li, Xudong Hu, Wenju Zhu, Chunming Zheng, Xiaohong Sun
Summary: This paper explores the challenge of increasing global CO2 emissions and highlights the role of porous metal oxide materials in electrocatalytic reduction of CO2 (CO2RR). Porous metal oxides offer high surface area and tunability for optimizing CO2RR reaction mechanisms.
JOURNAL OF ENERGY CHEMISTRY
(2024)
