Article
Chemistry, Multidisciplinary
Matthew Li, Jun Lu, Jiayan Shi, Seoung-Bum Son, Dan Luo, Ira Bloom, Zhongwei Chen, Khalil Amine
Summary: Activation of commercial Li2S is a key challenge in commercializing sulfur-based Li-ion battery systems. This study uses commercial Na2S as a polysulfide injector to activate commercial Li2S, allowing for activation at lower voltages and with lower electrolyte content. Compared to pre-solvated redox mediators, this technique offers a simpler and more efficient way to activate commercial Li2S.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Review
Energy & Fuels
Jiani Wang, Hailong Wang, Songyan Jia, Qin Zhao, Qiang Zheng, Yali Ma, Tianyi Ma, Xue Li
Summary: Lithium-sulfur (Li-S) batteries have a higher theoretical capacity and several advantages compared to lithium-ion batteries. However, issues like the shuttle effect of polysulfide and degradation of cycle stability hinder their practical application. Functionalized membranes offer a key approach to address these challenges. Recent research has focused on mitigating the shuttling effect and improving cycle stability through membrane functionalization. This paper provides a comprehensive review of recent progresses and predicts future research trends in this area.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Cheng Ma, Xianfeng Jia, Xiaojun Liu, Jitong Wang, Wenming Qiao, Jianguo Yu, Licheng Ling
Summary: Ultrafine NbN decorated nitrogen-doped porous carbon nanosheets were synthesized using phenolic resol as a carbon precursor. The nanosheets showed efficient polysulfide trapping and fast redox reaction kinetics, leading to high capacity and capacity retention even at high sulfur content. The findings provide a new method for practical application of lithium-sulfur batteries with superior sulfur utilization and long lifespan.
JOURNAL OF POWER SOURCES
(2022)
Article
Engineering, Environmental
Sung Joon Park, So Yeon Yang, Sang A. Han, Yun Jeong Choi, Taehee Kim, Min-Sik Park, Jung Ho Kim, Ki Jae Kim
Summary: By coating ordered mesoporous Mn2O3 (m-Mn2O3) and highly conductive Super P (SP) on polyethylene (PE) separators, we have designed a multifunctional composite separator to enhance the reversibility and cycling stability of lithium-sulfur batteries (LSBs). The m-Mn2O3 offers fast chemisorption of polysulfides dissolved in electrolyte, and the highly conductive SP physically mitigates the crossover of polysulfides and reversibly reutilizes them during cycling. In practice, the LSB cell assembled with the separator coated with m-Mn2O3 and SP delivers a high reversible capacity of 553 mAh g-1 at a current density of 0.5 C, even after 300 cycles.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Qimeng Wang, Qi Chen, Rui Zhao, Haiyu Wang, Weijian Diao, Fengchao Cui, Shu-Ying Li, Hengguo Wang, Guangshan Zhu
Summary: A Salen-based porous aromatic framework (Zn/Salen-PAF) was synthesized as an efficient anode material for lithium-ion battery. Compared to Salen-PAF without metal ions, Zn/Salen-PAF exhibited better electrical conductivity and more active sites.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Environmental
Jian Wang, Shuang Cheng, Linge Li, Lujie Jia, Jian Wu, Xinrui Li, Qinghua Guan, Huimin Hu, Jing Zhang, Hongzhen Lin
Summary: The morphology and state of the cathode/electrolyte interphase (CEI) layer are modulated by introducing highly active lithium bisfluorosulfonylimide (LiFSI) in the ether-based electrolyte, resulting in metal sulfide electrodes with a uniform and robust CEI layer. These electrodes exhibit higher rate capacity and improved Coulombic efficiency.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Weiwei Jiang, Yahui Li, Junjie Li, Guoyu Ding, Yijie Zhan, Jiajia Peng, Xiaofei Yan, Xi Deng, Jiawei Tan, Jiawei Xu, Changxin Tang, Yu Dai, Fugen Sun
Summary: The oxygen doped MoS2 nanosheets were grown into 3D porous graphene frameworks and used as coatings for commercial PP separators in Li-S batteries. The O dopants expanded and disturbed the interlayer structures of MoS2, creating active edge sites for polysulfide adsorption and catalytic conversion. The activated MoS2 and the graphene frameworks synergistically improved the electrochemical performance of the Li-S cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Su Hyun Yang, Jang Min Choi, Rakesh Saroha, Sung Woo Cho, Yun Chan Kang, Jung Sang Cho
Summary: The introduction of functional interlayers for efficient anchoring of lithium polysulfides has received significant attention worldwide. In this study, hollow porous carbon nanospheres (HPCNSs) impregnated with metallic and polar cobalt sulfide (Co9S8) nanocrystals (abbreviated as Co9S8@HPCNS) were prepared and used as electrocatalytic interlayers for Li-S batteries. The electrochemical performance of Li-S cells with Co9S8@HPCNS as interlayers and regular sulfur electrodes showed improved rate performance and cycling stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Mengyao Li, Dawei Yang, Jordi Jacas Biendicho, Xu Han, Chaoqi Zhang, Kun Liu, Jiefeng Diao, Junshan Li, Jing Wang, Marc Heggen, Rafal E. Dunin-Borkowski, Jiaao Wang, Graeme Henkelman, Joan Ramon Morante, Jordi Arbiol, Shu-Lei Chou, Andreu Cabot
Summary: This study proposes an innovative sulfur host based on iodine-doped bismuth selenide (I-Bi2Se3) to address the shuttling behavior and sluggish conversion kinetics of lithium polysulfides in lithium-sulfur batteries. The I-Bi2Se3 nanosheets show a suitable composition and structure for facilitating Li+ diffusion, fast electron transportation, and strong Li polysulfide adsorption and catalytic activity. The I-Bi2Se3/S electrodes exhibit outstanding initial capacities and cycling stability in the battery tests.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Rujian Xiao, Dan Luo, Jiayi Wang, Han Lu, Heng Ma, Eser Metin Akinoglu, Mingliang Jin, Xin Wang, Yongguang Zhang, Zhongwei Chen
Summary: The study developed unique Co3O4/N-doped reduced graphene oxide composites as efficient sulfur immobilizers and promoters for lithium-sulfur batteries, optimizing the adsorption and catalytic conversion of lithium polysulfides to improve battery performance.
Article
Chemistry, Multidisciplinary
Chao Yue Zhang, Chaoqi Zhang, Guo Wen Sun, Jiang Long Pan, Li Gong, Geng Zhi Sun, Jordi Jacas Biendicho, Lluis Balcells, Xiao Long Fan, Joan Ramon Morante, Jin Yuan Zhou, Andreu Cabot
Summary: The study demonstrates that using an external magnetic field in lithium-sulfur batteries can significantly improve the LiPS adsorption ability and Li-S reaction kinetics. The electron spin polarization of Co ions reduces electron repulsion and enhances orbital hybridization, resulting in LSBs with unprecedented performance and stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Haodong Shi, Jieqiong Qin, Pengfei Lu, Cong Dong, Jian He, Xiujian Chou, Pratteek Das, Jiemin Wang, Liangzhu Zhang, Zhong-Shuai Wu
Summary: A novel twinborn holey Nb4N5-Nb2O5 heterostructure is designed as a dual-functional host for high-efficiency Li-S batteries, accelerating the redox reactions at the sulfur cathode and inhibiting dendrite growth at the lithium anode.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Muhammad Faheem, Xue Yin, Ruiwen Shao, Lei Zhou, Chaoyuan Zeng, Niaz Ahmad, Muhammad Khurram Tufail, Wen Yang
Summary: Lithium-Sulfur batteries are promising energy storage systems due to their high energy density, environmental friendliness, and low cost. However, the slow redox kinetics of lithium polysulfide (LPS) and its shuttle effect hinder the practical applications of Li-S batteries. This study presents a single atom Fe-N/C catalyst that suppresses the formation of lithium polysulfide and improves the cyclic stability and Coulombic efficiency of lithium-sulfur batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Binbin Yang, Shuixin Xia, Hao Sun, Xun Zhang, Yuepeng Pang, Junhe Yang, Shiyou Zheng
Summary: By utilizing layered-double-hydroxide ultrathin nanosheet (LUN)-decorated Celgard separators, this research successfully addresses issues such as lithium polysulfide shuttle and dendritic Li growth, significantly improving the cycle life and stability of lithium-sulfur batteries.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Zhongju Wang, Qianqian Fan, Yubing Si, Wei Guo, Yongzhu Fu
Summary: A self-regulatory zwitterionic organosulfur copolymer cathode is developed for lithium-sulfur batteries, which can immobilize polysulfides and improve Li+ transport. The cathodes exhibit outstanding rate capability and cycling stability.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Jiadong Zhou, Chao Zhu, Yao Zhou, Jichen Dong, Peiling Li, Zhaowei Zhang, Zhen Wang, Yung-Chang Lin, Jia Shi, Runwu Zhang, Yanzhen Zheng, Huimei Yu, Bijun Tang, Fucai Liu, Lin Wang, Liwei Liu, Gui-Bin Liu, Weida Hu, Yanfeng Gao, Haitao Yang, Weibo Gao, Li Lu, Yeliang Wang, Kazu Suenaga, Guangtong Liu, Feng Ding, Yugui Yao, Zheng Liu
Summary: This study reveals a competitive-chemical-reaction-based growth mechanism that allows for the growth of transition metal chalcogenides and transition metal phosphorous chalcogenides with different compositions and phases. It provides an interesting platform for the exploration of 2D TMPCs and TMCs.
Article
Chemistry, Multidisciplinary
Kaixi Wang, Shuo Wang, Kwan San Hui, Junfeng Li, Chenyang Zha, Duc Anh Dinh, Zongping Shao, Bo Yan, Zikang Tang, Kwun Nam Hui
Summary: A 3D quasi-parallel structure consisting of dense Pt nanoparticles immobilized on oxygen vacancy-rich NiOx heterojunctions has been developed as an alkaline hydrogen evolution reaction (HER) catalyst. The catalyst exhibits extraordinary HER performance with a low overpotential, high mass activity, and long durability. When combined with NiFe-layered double hydroxide, the assembled alkaline electrolyzer requires extremely low voltage and can operate stably for a long time.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Chongguang Lyu, Linghai Zhang, Xu Zhang, Hongmei Zhang, Hongguang Xie, Jianhong Zhang, Yufeng Liu, Yu Liu, Ruixia Wu, Junran Zhang, Chenyang Zha, Wei Wang, Zhong Wan, Bo Li, Chao Zhu, Huifang Ma, Xidong Duan, Lin Wang
Summary: A reliable WSe2-assisted chemical vapor deposition (CVD) strategy is reported for the growth of nonlayered WO2 nanoplates with tunable thickness and lateral dimension. The WO2 nanoplates exhibit well-faceted rhombic geometry and show metallic behavior with outstanding conductivity. Low-temperature magnetotransport studies reveal a quantum-interference-induced weak-localization effect.
ADVANCED MATERIALS
(2023)
Letter
Chemistry, Multidisciplinary
Xiaolei Zhao, Pan Xiang, Jinghua Wu, Ziqiang Liu, Lin Shen, Gaozhan Liu, Ziqi Tian, Liang Chen, Xiayin Yao
Summary: In this study, a Li9.88GeP1.96Sb0.04S11.88Cl0.12 solid electrolyte was synthesized, which exhibited excellent tolerance and stability to toluene. The ultrathin membranes of this electrolyte were successfully prepared with adjustable thickness and showed good ionic conductivity. The fabricated all-solid-state lithium battery with this membrane showed high capacity retention.
Article
Chemistry, Multidisciplinary
Xu Zhang, Chunli Wang, Zhenwei Ou, Xiaohong Jiang, Jinlian Chen, Huifang Ma, Chenyang Zha, Wei Wang, Linghai Zhang, Ti Wang, Lin Wang
Summary: In this study, a new WSe2/FePS3 heterostructure was constructed, and WSe2 was used as a sensor to visualize the thickness-dependent properties of FePS3. It was found that the photoluminescence (PL) intensity of monolayer WSe2 was strongly quenched on or above the FePS3, and this quenching effect became more pronounced as the thickness of FePS3 increased. This is attributed to the efficient charge transfer process occurring at the WSe2/FePS3 interface with type II band alignment, which is faster for thicker FePS3 as evidenced by transient absorption measurements. The thickness-dependent charge transfer process and corresponding excitonic properties were further revealed in low-temperature photoluminescence spectra of WSe2/FePS3 heterostructures. This study demonstrates that the thickness of 2D magnetic materials can be used as an experimental tuning knob to manipulate the optical performance of conventional 2D semiconductors, giving van der Waals heterostructures more unexpected properties and functionalities.
Article
Chemistry, Physical
Cheng-Zong Yuan, Shuo Wang, Kwan San Hui, Kaixi Wang, Junfeng Li, Haixing Gao, Chenyang Zha, Xiaomeng Zhang, Duc Anh Dinh, Xi-Lin Wu, Zikang Tang, Jiawei Wan, Zongping Shao, Kwun Nam Hui
Summary: The synergistic regulation of the electronic structures of transition-metal oxide-based catalysts via oxygen vacancy defects and single-atom doping is efficient to boost their oxygen evolution reaction (OER) performance. In this study, a facile defect-induced in situ single-atom deposition strategy is developed to anchor atomically dispersed Ru single-atom onto oxygen vacancy-rich cobalt oxides (Ru/Co3O4-x) based on the spontaneous redox reaction between Ru3+ ions and nonstoichiometric Co3O4-x. The as-prepared Ru/Co3O4-x electrocatalyst with the coexistence of oxygen vacancies and Ru atoms exhibits excellent performances toward OER.
Article
Chemistry, Multidisciplinary
Zunhao Fan, Mengting Zhu, Shungui Deng, Yanhua Chen, Yue Zhao, Mengyuan Qin, Guiyuan Ma, Jinghua Wu, Xing Xin
Summary: In this study, an electro-catalytic strategy was proposed to improve the utilization of sulfur in lithium-sulfur batteries by inhibiting the shuttle of polysulfides through physical absorption and catalysis. The Li-S battery with Co-TCN@PP separator demonstrated superior rate capacities and long cycle life, as well as the ability to achieve high sulfur loading in the electrodes.
NANOSCALE ADVANCES
(2023)
Article
Electrochemistry
Junfeng Ma, Zhiyan Wang, Jinghua Wu, Zhi Gu, Xing Xin, Xiayin Yao
Summary: "Polyethylene (PE)-based gel polymer electrolytes" were proposed as an alternative to conventional liquid electrolytes in lithium metal batteries. They exhibited good interfacial compatibility with electrodes, high ion conductivity, and wide electrochemical window at high temperatures. The assembled LiFePO4//Li solid-state batteries employing PE-based gel polymer electrolyte with 50% liquid carbonate electrolytes showed excellent performance and cyclic life, achieving high specific capacities and retention rates. The in situ solidified method for preparing PE-based gel polymer electrolytes provides a feasible approach for the practical application of lithium metal batteries.
Article
Chemistry, Multidisciplinary
Zhi Gu, Xing Xin, Zelin Xu, Jun He, Jinghua Wu, Yong Sun, Xiayin Yao
Summary: An integrated architecture based on garnet electrolyte LLZTO and a porous composite cathode is developed for high-performance all-solid-state Li-O-2 batteries. This design effectively reduces the interfacial impedance, provides active sites at triple-phase boundaries, and improves the electrochemical stability of the battery. The obtained batteries demonstrate superior discharge capacity and cyclic performance. This study is expected to facilitate practical applications for all-solid-state Li-O-2 batteries and other metal-oxygen (air) battery systems.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yunshan Zheng, Junfeng Li, Shunping Ji, Kwan San Hui, Shuo Wang, Huifang Xu, Kaixi Wang, Duc Anh Dinh, Chenyang Zha, Zongping Shao, Kwun Nam Hui
Summary: In this study, a Zn-doped K0.02Na0.55Mn0.70Ni0.25Zn0.05O2 material (denoted as KNMNO-Z) was reported to inhibit the Jahn-Teller effect and reduce the irreversible phase transition in potassium-ion batteries. Through the Zn-doping strategy, higher Mn valence was achieved, leading to an improvement in cyclic stability with a high retention rate of 97% after 1000 cycles.
Article
Chemistry, Multidisciplinary
Jin Tang, Feixiang Ge, Jinlian Chen, Dawei Zhou, Guixiang Zhan, Jing Liu, Jiaxiao Yuan, Xinyu Shi, Peiyi Zhao, Xinlin Fan, Yu Su, Zicong Liu, Jiahao He, Jiaqi Tang, Chenyang Zha, Linghai Zhang, Xuefen Song, Lin Wang
Summary: In recent years, there has been growing research interest in 2D metal halides; however, liquid-phase synthesis methods remain challenging. This study demonstrates a simple and efficient droplet method for synthesizing various types of multiclass 2D metal halides. The nucleation and growth of these metal halide nanosheets are determined by the supersaturation of precursor solutions, allowing for the fabrication of heterostructures and devices. The interfacing of SbI3/WSe2, for example, enhances the photoluminescence intensity and photo responsivity of WSe2. This work opens up new avenues for investigating and applying 2D metal halides.
Review
Materials Science, Multidisciplinary
Jing-Huang Lin, Yao-Tian Yan, Jun-Lei Qi, Chen-Yang Zha
Summary: This article reviews the importance of oxygen-deficient tungsten oxides in the field of energy and their potential in improving performance. By adjusting the atomic arrangement, non-stoichiometric tungsten oxides can be formed, which exhibit superior performance compared to their traditional stoichiometric counterparts.
Article
Chemistry, Physical
Cheng-Zong Yuan, Shuo Wang, Kwan San Hui, Kaixi Wang, Junfeng Li, Haixing Gao, Chenyang Zha, Xiaomeng Zhang, Duc Anh Dinh, Xi-Lin Wu, Zikang Tang, Jiawei Wan, Zongping Shao, Kwun Nam Hui
Summary: The synergistic regulation of electronic structures of transition-metal oxide-based catalysts using oxygen vacancy defects and single atom doping can significantly enhance their performance in oxygen evolution reaction (OER). In this study, a simple defect-induced in situ single-atom deposition strategy was developed to deposit atomically dispersed Ru single atoms onto oxygen vacancy-rich cobalt oxides (Ru/Co3O4-x) by a spontaneous redox reaction. The resulting Ru/Co3O4-x electrocatalyst, with the coexistence of oxygen vacancies and Ru atoms, exhibited excellent OER performance with a low overpotential, small Tafel slope value, and good long-term stability in alkaline media. Density functional theory calculations revealed that the synergy between oxygen vacancies and atomically dispersed Ru can optimize the adsorption of oxygen-based intermediates and reduce the reaction barriers of OER by tailoring the electron decentralization and d-band center of Co atoms. This study proposes a feasible strategy for constructing electrocatalysts with abundant oxygen vacancies and atomically dispersed noble metals, and provides a deep understanding of the electronic engineering of transition-metal-based catalysts to boost OER.
Article
Chemistry, Physical
Jinlian Chen, Mengjia Feng, Chenyang Zha, Linghai Zhang, Lin Wang
Summary: Using pseudo-halide anions to improve the stability of FAPbI3 surface and the charge transfer properties of SnO2/FAPbI3 heterostructure has been explored. Pseudo-halide-doped perovskites show improved stability, enhanced light absorption properties, and efficient charge transfer, making them promising materials for optoelectronic applications.
SURFACES AND INTERFACES
(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)