Article
Chemistry, Applied
Zexing Wu, Yuxiao Gao, Zixuan Wang, Weiping Xiao, Xinping Wang, Bin Li, Zhenjiang Li, Xiaobin Liu, Tianyi Ma, Lei Wang
Summary: Defective CoP decorated with ultrafine Pt nanoparticles (Pt/d-CoP/NPC) with multifunctional electrocatalytic performances is prepared via facile pyrolysis and following chemical reduction process. The as-synthesized Pt/d-CoP/NPC exhibits high catalytic activity and stability in oxygen reduction reaction, hydrogen evolution reaction, and oxygen evolution reaction. It shows great potential for applications in renewable energy storage.
CHINESE JOURNAL OF CATALYSIS
(2023)
Article
Chemistry, Physical
Narayanamoorthy Bhuvanendran, Min Gyeong Choi, Doeun Kim, Sae Youn Lee
Summary: A simple hydrothermal method was used to synthesize different forms of nanostructured Co3O4 spinel oxides, which exhibited excellent electrocatalytic activity towards oxygen reduction reaction, oxygen evolution reaction, and hydrogen evolution reaction. The study investigated the surface morphology and structural features of the Co3O4 spinel oxide catalysts, revealing that the slab-form catalysts had a high Co3+/Co2+ ratio and an abundance of oxygen vacancies, resulting in improved performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Lulu Wen, Xinyang Li, Rui Zhang, Huawei Liang, Qitao Zhang, Chenliang Su, Yu-Jia Zeng
Summary: Introducing oxygen vacancies is considered an effective method to accelerate the nitrogen reduction reaction, and Zn-Co3O4 nanopolyhedrons with abundant oxygen vacancies and high catalytic performance have been successfully prepared in this study. The catalyst shows high ammonia yield and faradaic efficiency, as well as excellent stability.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Chuang Wang, Liang-Liang Gu, Sheng-You Qiu, Jian Gao, Yong-Chao Zhang, Ke-Xin Wang, Ji-Jun Zou, Peng-Jian Zuo, Xiao-Dong Zhu
Summary: The study demonstrates the excellent activity and stability of the hollow bimetallic CoFe2O4 nanocube in nitrogen reduction reaction, attributed to improved nitrogen adsorption and activation, unoccupied d orbitals of transition metal components, reformed electronic structure by oxygen vacancies, and electron injection facilitated by conductive carbon wrapper. Both experimental and theoretical investigations confirm the mechanism underlying the enhancement in catalytic activity, making the design strategy of C@CoFe2O4-x nanocube efficient and valid.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Jinxiu Zhao, Xuejing Liu, Xiang Ren, Xu Sun, Dongxu Tian, Qin Wei, Dan Wu
Summary: The study found that defective-rich ZnS nanoparticles supported on reduced graphene oxide can serve as a high-efficiency electrocatalyst for converting N-2 to NH3, showing high yield and excellent selectivity. Through experiments and calculations, it was revealed that this catalyst activates N-2 molecules and synthesizes NH3 directly from N-2.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Electrochemistry
Shaona Chen, Zhangyu Zhou, Binbin Bai, Zhongxu Dai, Jinjin Shi
Summary: A novel heterojunction material with nonuniform charge distribution of rich S and O vacancies was prepared as an excellent electrocatalyst for NRR, showing significantly improved performance by simultaneously improving sulfur and oxygen vacancies on the heterojunction material.
Article
Nanoscience & Nanotechnology
Xiaoyan Liu, Jinfeng Wu, Zhuyu Luo, Ping Liu, Yue Tian, Xuewei Wang, Hexing Li
Summary: A Co2P-assisted Co single-atom electrocatalyst (Co2P/Co-NC) was synthesized via evaporative drying and pyrolysis processes. The catalyst exhibited excellent activities in both ORR and OER, comparable to commercial catalysts. The assembled Zn-air batteries using Co2P/Co-NC as the air cathode showed high peak power density and long-life cycling stability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Bingqian Wang, Jianyu Liu, Huaiyun Ge, Siwei Fan, Guanghui Zhang, Lingxue Zhao, Guangda Li
Summary: A cubic core-shell NiCoSx/CoS2 composite catalyst was successfully prepared, showing excellent performance in oxygen evolution and reduction reactions, as well as in zinc-air batteries and flexible batteries.
Article
Chemistry, Multidisciplinary
Xutao Gao, Edmund C. M. Tse
Summary: This study systematically explores the NO3RR mechanism of single-atom catalysts (SACs) by constructing single transition metal atoms supported on MXene with oxygen vacancies. The results show that Ag/Ov-MXene and Cu/Ov-MXene catalysts are highly efficient for NO3RR towards NH3, with low limiting potentials. These catalysts also exhibit excellent selectivity towards ammonia, effectively suppressing the competitive hydrogen evolution reaction. The findings provide new strategies for promoting NH3 production and insights for the development of next-generation NO3RR electrocatalysts using MXene-based single-atom catalysts.
Article
Green & Sustainable Science & Technology
Qinggang Du, Panpan Su, Zezhong Cao, Jie Yang, Cameron Alexander Hurd Price, Jian Liu
Summary: This study successfully prepared N and Fe co-doped CoO nanoparticles with high OER activity at low cost, originating from oxygen vacancies and interface effects, providing new insights into the active sites of Co-based catalysts.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2021)
Article
Chemistry, Physical
Haihua Wu, Juanjuan Zhai, Feng Wu, Jiahao Wu, Yudan Li, Xin Xu, Yunfang Gao
Summary: A novel bifunctional oxygen electrocatalyst with Fe0.64Ni0.36 nanoalloy encapsulated in nitrogen-doped porous carbon nanotubes (FeNi@N-CNTs) was synthesized from Ni-modified Prussian blue. Electron transfer from the inner nanoalloy to the N-CNTs surface modulates its electron state for enhanced ORR/OER catalysis. The mesoporous structure in N-CNTs facilitates rapid mass transport.
Article
Engineering, Environmental
Kyeongseok Min, Minji Hwang, Sang Eun Shim, Dongwook Lim, Sung-Hyeon Baeck
Summary: Oxygen-deficient Fe-doped Co3O4 polyhedral nanoparticles were successfully synthesized for efficient electrocatalytic oxygen evolution reaction through a self-templating strategy. The defect-rich nanoparticles demonstrated superior OER performance, with low overpotential, Tafel slope, and excellent long-term durability in alkaline conditions. This approach provides a new direction for designing advanced non-noble catalysts for energy storage and conversion applications.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Mohammad-Reza Zamani-Meymian, Karim Khanmohammadi Chenab, Hamed Pourzolfaghar
Summary: Efficient and bifunctional electrocatalysts are crucial for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in rechargeable Zn-air batteries (ZABs). In this study, nanoscale composites based on MnO2@C, CoO@C, and CoO:MnO2@C were designed for fabricating uniform carbon cloth (CC) electrodes. The CoO:MnO2@C electrocatalyst exhibited superior electrochemical properties in ORR/OER processes, with higher positive half-wave potential and better limiting current density compared to MnO2@C and CoO@C electrocatalysts. The rechargeable ZABs fabricated using CoO:MnO2@C-CC showed improved electrochemical performance, including higher specific capacity, peak power density, open-circuit voltage, and smaller gap of charge/discharge voltage, compared to ZABs based on MnO2@C-CC and CoO@C-CC.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Minghua He, Zulhumar Turup, Xuekun Jin, Fengjuan Chen
Summary: Ag nanoparticles supported by MnO2 nanorods were successfully synthesized as efficient oxygen reduction reaction (ORR) electrocatalysts with comparable catalytic activity to commercial Pt/C catalysts. The excellent catalytic performances are attributed to the abundant oxygen vacancies and Mn3+ species on the MnO2 surface, as well as the synergistic effect between MnO2 substrates and Ag nanoparticles, providing guidance for the design of efficient Mn-based ORR electrocatalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Multidisciplinary Sciences
Zhuo Zhu, Youxuan Ni, Qingliang Lv, Jiarun Geng, Wei Xiea, Fujun Li, Jun Chen
Summary: In this study, a plasmonic heterojunction of Au nanoparticle-decorated C3N4 with nitrogen vacancies was used as a bifunctional catalyst to enhance the performance of Li-O-2 batteries. The discharge voltage of the battery was significantly increased to 3.16 V under illumination, exceeding its equilibrium voltage, with a stable charge voltage of 3.26 V and good rate capability and cycle stability.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Chemistry, Multidisciplinary
Chenxu Wang, Huifang Yuan, Feng Yu, Jie Zhang, Yangyang Li, Wentao Bao, Zhimou Wang, Ke Lu, Jie Yu, Ge Bai, Gang Wang, Banghua Peng, Lili Zhang
Summary: Traditional methods for preparing metal-organic frameworks (MOFs) have limitations in terms of dispersion, efficiency, and continuity. In this study, a microchannel reactor was used to synthesize MOFs-derived zeolite-imidazole material using flash nanoprecipitation, resulting in highly dispersed ZIF-67 + PEI(FNP) with a significantly reduced synthesis time. The Co@N-C(FNP) catalyst obtained through flash nanoprecipitation and carbonization exhibited higher Co content and more active sites for oxygen reduction reaction compared to the Co@N-C(DM) catalyst prepared using a direct mixing method. Electrochemical tests demonstrated that the Co@N-C(FNP) catalyst showed excellent oxygen reduction performance, methanol resistance, and high stability. The Zn-air battery assembled with Co@N-C(FNP) as the cathode catalyst exhibited high open circuit voltage, high power density, and large specific capacity, comparable to Pt/C assembled batteries. Density functional theory (DFT) calculations confirmed that the Co(220) crystal plane in Co@N-C(FNP) had stronger adsorption energy, leading to better electrocatalytic performance compared to the Co(111) crystal plane in Co@N-C(DM).
CHINESE CHEMICAL LETTERS
(2023)
Review
Materials Science, Multidisciplinary
Xianglong Chen, Yudong Gong, Xiu Li, Feng Zhan, Xinhua Liu, Jianmin Ma
Summary: The olivine-type lithium iron phosphate (LiFePO4) is a promising and widely used cathode material for high-performance lithium-ion batteries. However, its performance is limited in cold climates. Therefore, designing low-temperature electrolytes is crucial for the further commercial application of LiFePO4 batteries.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhongsheng Wang, Chunlei Zhu, Jiandong Liu, Xinhong Hu, Yulu Yang, Shihan Qi, Huaping Wang, Daxiong Wu, Junda Huang, Pengbin He, Jianmin Ma
Summary: Tailoring the inorganic components of the CEI and SEI in lithium metal batteries is crucial for improving their cycling performance. By using PFBNBS as an electrolyte additive guided by functional groups, the species and inorganic content of the CEI/SEI are enriched with a gradient distribution. Furthermore, the catalytic effect of the NCM622 cathode on the decomposition of PFBNBS is proposed. This tailored electrolyte enables the formation of an inorganic-rich CEI on NCM622 and an increased inorganic content in the SEI, leading to superior electrochemical performance and inhibiting electrolyte decomposition.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Chunlei Zhu, Daxiong Wu, Zhongsheng Wang, Huaping Wang, Jiandong Liu, Kanglong Guo, Quanhui Liu, Jianmin Ma
Summary: NaF-rich electrode-electrolyte interphases play a crucial role in the cycling stability of sodium metal batteries. The addition of perfluorobenzene (PFB) promotes the formation of NaF-rich solid electrolyte interphases (SEI). PFB can extract a part of EC with the lowest solvation energy, allowing more PF6- to participate in the solvation layer and form an anion-aggregated solvation sheath, thus facilitating the decomposition of PF6- to produce NaF. The Na||Na symmetric cells with this electrolyte exhibit superior cycling performance and the Na||Na3V2(PO4)(2)O2F batteries achieve high capacity retention after 500 cycles.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Junda Huang, Jian He, Quanhui Liu, Jianmin Ma
Summary: Realizing uniform Li+ flow is crucial for achieving even Li deposition in lithium metal batteries (LMBs). In this study, a dynamic ion sieve concept is proposed, which involves designing a buffer layer near the Li anode surface to regulate Li+ spatial arrangement by introducing TMPB into the carbonate electrolyte. The buffer layer induced by TMP+ allows solvated Li+ sufficient time to redistribute and accumulate on the Li anode surface, resulting in a uniform and concentrated Li+ flow. Additionally, TFSI- participates in the formation of an inorganic-rich solid electrolyte interphase (SEI) with Li3N, enhancing the Li+ conductivity of the SEI. As a result, the stable and uniform Li deposition achieved excellent cycling performance in Li||Li symmetric cells for up to 1000 hours at 0.5 mA cm(-2). Furthermore, the Li||NCM622 full cell exhibited excellent cycling stability with a high-capacity retention rate of 66.7% after 300 cycles.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yulu Yang, Huaping Wang, Chunlei Zhu, Jianmin Ma
Summary: Lithium metal batteries (LMBs) with high-voltage nickel-rich cathode and Li metal anode have the potential for high capacity and power density, but electrolytes that can withstand oxidation on the cathode at high cut-off voltage are urgently needed. This study presents an armor-like inorganic-rich cathode electrolyte interphase (CEI) strategy using pentafluorophenylboronic acid (PFPBA) as an additive to explore oxidation-resistant electrolytes for sustaining 4.8 V Li||LiNi0.6Co0.2Mn0.2O2 (NCM622) batteries. The CEI, which consists of armored lithium borate and abundant LiF, improves the mechanical stability and Li+ conductivity, leading to excellent cycling performance and capacity retention even at 4.8 V cut-off voltage.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Yihui Liu, Fusheng Liu, Bingbing Liu, Yaoyao Xiao, Guohui Qin, Jianmin Ma
Summary: In this study, a new type of antimony (Sb)-based anode material Bi0.67Sb1.33S3/PET@PTA was designed. The Bi0.67Sb1.33S3 nanospheres were embedded into in situ formed poly(3,4-ethylenedioxythiophene) crosslinked with polythioctic acid (PET@PTA), showing remarkable self-healing ability and wide temperature adaptability. The Bi0.67Sb1.33S3/PET@PTA exhibited excellent storage performance in potassium-ion batteries.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Huaming Yu, Dongping Chen, Quanyu Li, Chunshuang Yan, Zihao Jiang, Liangjun Zhou, Weifeng Wei, Jianmin Ma, Xiaobo Ji, Yuejiao Chen, Libao Chen
Summary: The addition of trace hexamethylenetetramine (HMTA) additive improves the reversibility and performance of zinc batteries.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Jiandong Liu, Mingguang Wu, Xin Li, Daxiong Wu, Huaping Wang, Junda Huang, Jianmin Ma
Summary: Constructing robust electrode electrolyte interphases (EEIs) with polar amide groups and a Li3N/LiF heterostructure can enhance the charge cut-off voltage of LiCoO2 at 4.6 V, improving the battery density and addressing the challenge of structural instability.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Kanglong Guo, Chunlei Zhu, Huaping Wang, Shihan Qi, Junda Huang, Daxiong Wu, Jianmin Ma
Summary: Increasing the cut-off voltage of cathodes improves the energy density of Li||LiCoO2 batteries, but also leads to rapid battery degradation due to oxidation and deterioration. However, by using bis-(benzenesulfonyl)imide (BBSI) as an additive, a uniform and highly Li+ conductive cathode electrolyte interphase (CEI) is constructed, which stabilizes the batteries at 4.6 cut-off voltage and exhibits superior cycling and high-rate performance. The CEI, consisting of LiF and conductive Li+ moieties, improves Li+ migration, alleviates cathode degradation, and reduces other secondary degradation factors. Li||LiCoO2 batteries with 1% BBSI-containing electrolyte sustain 81.30% of initial capacity after 300 cycles at 0.5C, and 88.27% of initial capacity even after 500 cycles at 2C/3C.
ADVANCED ENERGY MATERIALS
(2023)
Article
Computer Science, Information Systems
Chuan Zhu, Wenjun Zhou, Yingjun Zhu, Jianmin Ma
Summary: This paper proposes a neighboring-part dependency mining and feature fusion network (NDMF-Net) to address the issue of existing methods ignoring less obvious features and spatial interdependencies. Experimental results demonstrate that our method is effective and achieves state-of-the-art performance.
Article
Chemistry, Multidisciplinary
Ge Bai, Wen Guo, Gang Wang, Bin Dai, Lu Liu, Lili Zhang, Feng Yu
Summary: Strategically upcycling industrial wastes into value-added materials is an effective way to tackle energy and environmental issues. This study focuses on synthesizing N and S co-doped petroleum coke-based activated carbon using dye wastewater as the sole dopant source. The produced activated carbon exhibits high surface area and energy density, making it suitable for various applications. The scalable and green production process allows for easy adoption and cost-effective production of functionalized carbons from wastes.
Article
Chemistry, Inorganic & Nuclear
Tengfei Zhang, Dan Xu, Ping Liu, Huan Liu, Long Chen, Tiantian Gu, Feng Yu, Yanyan Liu, Gang Wang
Summary: This paper reports a novel three-dimensional core-shell heterostructure catalyst (Ni-Mo-S@NiFeLDH/NF) constructed by vertically growing layered double hydroxide nanosheets on nanorod arrays. Benefiting from the unique core-shell structure with numerous exposed active sites, the catalyst exhibits excellent activity for the oxygen evolution reaction and urea oxidation reaction.
DALTON TRANSACTIONS
(2023)
Article
Engineering, Environmental
Ping Liu, Handan Liu, Tengfei Zhang, Long Chen, Wen Guo, Tiantian Gu, Feng Yu, Yanyan Liu, Gang Wang
Summary: The study successfully prepared heterodimensional hybrid material composed of modified MXene nanosheets and quantum dots, which exhibited excellent flexibility and high conductivity. The electrochemical performance was greatly enhanced by exposing more active sites, resulting in high capacitance retention and mechanical stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Jiazheng Zhou, Linan Wang, Hongshan Wang, Ling Luo, Junjie Li, Feng Yu
Summary: The first alkaline-earth metal thioborate-thiophosphate, Ba-3(BS3)(PS4), was designed using S-O substitution from Ba-3(BO3)(PO4) and fabricated experimentally. The [BS3] pseudo-layers formed in the structure contribute to strong optical anisotropy and a large birefringence of approximately 0.11 at 1064 nm. These results enrich the structural and chemical diversity of chalcogenides.
DALTON TRANSACTIONS
(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)