Article
Energy & Fuels
Ming-Kuen Huang, Jan Luxa, Mahendran Mathankumar, Zhi-Ting Huang, Chih-Han Wang, Jeng-Kuei Chang, Zdenek Sofer, Jeng-Yu Lin
Summary: Layered GeSe/thermally-reduced graphene oxide (TRG) composites show improved electrochemical performance and cycling stability in Li-ion batteries, due to the role of the TRG matrix.
JOURNAL OF ENERGY STORAGE
(2023)
Review
Chemistry, Physical
Xin Cao, Yu Qiao, Min Jia, Ping He, Haoshen Zhou
Summary: This study reviews the potential application of Li-rich and Li-excess oxides as cathode materials for next-generation Li-ion batteries, discusses the challenges in using Li-excess oxides, and explores mechanisms to address these issues. Future research directions in the field are also proposed based on advanced characterizations and theory calculations.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Deniz Kuruahmet, Aslihan Guler, Sidika Yildirim, Mustafa Mahmut Singil, Hatice Gungor, Esma Uzun, Engin Alkan, Mehmet Oguz Guler, Hatem Akbulut
Summary: In this study, a cobalt-free and high nickel content material, LiNi0.8Mn0.15Al0.05O2 (NMA), and a conductive composite material, graphene aerogel (GA), were introduced. Through freeze-drying, NMA nanoparticles were properly dispersed on graphene sheets, and GA formed a strong and conductive framework, significantly improving the structure and conductivity. The electrochemical tests showed that the NMA/GA composite had improved capacity retention and good electrochemical performance. The NMA nanoparticles formed a conductive network thanks to GA, which prevented side reactions and increased the redox kinetics. The NMA/GA cathode is expected to play an important role in lithium-ion batteries (LIBs) due to its easy synthesis and excellent cycle stability.
Article
Chemistry, Physical
Yoo Jung Choi, You Jin Kim, Suji Kim, Ga Yoon Kim, Won-Hee Ryu
Summary: Layered cathode materials, such as LiCoO2, have been synthesized for Li-ion batteries using a direct solution-calcination strategy. The addition of polyvinylpyrrolidone (PVP) as a functional agent in the synthesis process helps to eliminate surface Li residues and promote a uniform particle distribution. The solution-calcined cathode material shows improved cycling stability and rate capability compared to commercial LCO, with suppressed phase transition. This research provides a simple and versatile method for the synthesis of cathode materials, avoiding complicated steps and the formation of unwanted residual lithium compounds.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Jae Hun Choi, Jin-Sung Park, Yun Chan Kang
Summary: This study introduces a procedure for the formation of vanadium dioxide-nanoflake-reduced graphene oxide composite microspheres with open pores through spray pyrolysis, which exhibits high rate capability and stable cycle performance as a cathode for zinc-ion batteries.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Ya-Qian Wu, Yi-Song Zhao, Wen-Jie Meng, Yun Xie, Jun Zhang, Cun-Jian He, Dong-Lin Zhao
Summary: The study demonstrates the excellent performance of SnS2/C-rGO prepared using hydrothermal and low-temperature chemical vapor deposition technology in LIBs, with a capacity of 952.8 mAh g(-1) and outstanding rate performance. The high performance is attributed to the synergistic effect of the carbon layer and rGO, enhancing the reversibility of the conversion reaction and the cycle stability of SnS2.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Environmental
Jin-Sung Park, Sung Eun Wang, Dae Soo Jung, Jung-Kul Lee, Yun Chan Kang
Summary: This study introduces the synthesis of uniquely structured porous VN-rGO microspheres and their application as cathodes for ZIBs. The VN-rGO microspheres exhibit high capacity, high energy density, and good rate capability. The electro-chemical reaction mechanism of VN-rGO microspheres with zinc ions is investigated.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Pilgun Oh, Jeongsik Yun, Jae Hong Choi, Gyutae Nam, Seohyeon Park, Tom James Embleton, Moonsu Yoon, Se Hun Joo, Su Hwan Kim, Haeseong Jang, Hyungsub Kim, Min Gyu Kim, Sang Kyu Kwak, Jaephil Cho
Summary: In this study, a secondary doping ion substitution method is proposed to improve the electrochemical reversibility of LCO materials for Li-ion batteries. The utilization of Na ions as functional dopants and Fe-ion substitution improves the capacity retention and cycling stability of LCO. This provides a new avenue for the manufacturing of layered cathode materials with a long cycle life.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Jianze Wu, Bao Liu, Xiaoying Xia, Zhaoxin Wang, Yongfan Zhang, Shuping Huang
Summary: In this research, the properties of GaN monolayer, defective GaN monolayer with N vacancies (GaN-VN), and van der Waals heterostructures composed of them and graphene (GaN/graphene, GaN-VN/graphene) are systematically investigated using density functional theory. The calculations show that GaN transforms into a metal in the presence of nitrogen-vacancy defects, leading to improved lithium adsorption and electron motion. Additionally, the presence of the heterostructure and built-in electric field enhances electron and ion conductivity. These materials have higher maximum theoretical capacities compared to conventional graphite anode materials.
SURFACES AND INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Yang-Yang Wang, Yu-Yang Wang, Sheng Liu, Guo-Ran Li, Zhen Zhou, Ning Xu, Meng-Tao Wu, Xue-Ping Gao
Summary: This study demonstrates a feasible approach to enhance the stability of high-Ni layered oxide cathodes by immobilizing surface oxygen with yttrium and stabilizing bulk oxygen with aluminum. The stabilized oxygen framework reduces structure deterioration, parasitic reactions, and potential polarization during battery operation, leading to high reversible capacity, impressive cycle ability, and improved thermal stability. The synergistic effect of yttrium and aluminum, with strong oxygen affinities, raises the energy barrier for oxygen evolution and contributes to the enhanced electrochemical performance of high-Ni oxide cathodes.
ENERGY & ENVIRONMENTAL MATERIALS
(2022)
Review
Biochemistry & Molecular Biology
Xin Meng, Jiale Wang, Le Li
Summary: This article summarizes various modifications recently implemented in the fast charging of layered oxide cathode materials, including component improvement, morphology control, ion doping, surface coating, and composite structure. The development direction of layered-oxide cathodes is summarized based on research progress. Possible strategies and future development directions of layered-oxide cathodes to improve fast-charging performance are proposed.
Article
Chemistry, Physical
Yutao Xue, Yao Chen, Xiaoping Shen, Ai Zhong, Zhenyuan Ji, Jia Cheng, Lirong Kong, Aihua Yuan
Summary: This paper presents a simple and effective way to improve the electrochemical performance of PBA-based cathodes for aqueous ZIBs application by developing a NiHCF/RGO hybrid cathode material. The NiHCF/RGO hybrid shows remarkable reversible capacity, excellent rate performance, and enhanced cycling stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Aleksandra A. Savina, Anatolii V. Morozov, Ivan A. Moiseev, Anton O. Boev, Dmitry A. Aksyonov, Leiting Zhang, Polina A. Morozova, Victoria A. Nikitina, Egor M. Pazhetnov, Erik J. Berg, Stanislav S. Fedotov, Jean-Marie Tarascon, Evgeny V. Antipov, Artem M. Abakumov
Summary: Due to the excellent discharge capacity provided by oxygen redox activity, Li-rich layered oxide positive electrode materials have attracted great attention. However, there is still no consensus regarding the role of ionocovalency of transition metal-oxygen chemical bonding in the reversibility of oxygen redox and the local crystal and electronic structure transformations. In this study, we successfully manipulated the cationic/anionic redox contributions to the overall electrochemical activity and investigated the importance of enhancing the covalency of the TM-O bonding for anchoring the reversibility of the charge compensation mechanism.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Physical
Ahmad Majed, Mohammad Torkamanzadeh, Chukwudi F. F. Nwaokorie, Karamullah Eisawi, Chaochao Dun, Audrey Buck, Jeffrey J. J. Urban, Matthew M. M. Montemore, Volker Presser, Michael Naguib
Summary: This study explores the potential of layered boride materials (MoAlB and Mo2AlB2) as high-performance electrode materials for lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs). It is found that Mo2AlB2 exhibits a higher specific capacity than MoAlB in LIBs, achieving a specific capacity of 593 mAh g(-1) after 500 cycles at 200 mA g(-1). Surface redox reactions are identified as the key mechanism for Li storage in Mo2AlB2. Additionally, sodium hydroxide treatment of MoAlB leads to a porous morphology and higher specific capacities in SIBs, with Mo2AlB2 exhibiting a specific capacity of 150 mAh g(-1) at 20 mA g(-1). These findings suggest the potential of layered borides as electrode materials for both LIBs and SIBs, emphasizing the importance of surface redox reactions in Li storage mechanisms.
Review
Chemistry, Physical
Zhaojin Li, Jinxing Yang, Tianjia Guang, Bingbing Fan, Kongjun Zhu, Xiaohui Wang
Summary: This paper summarizes the recent progress in controlled hydrothermal/solvothermal synthesis of LiFePO4 and explores the relationship between the synthesis conditions and the nucleation-and-growth of LiFePO4. The review covers surface decoration, lattice substitution, and defect control, while also discussing new research directions and future trends in the field.
Article
Chemistry, Multidisciplinary
Xiaotong Fan, Kai Huang, Long Chen, Haipeng You, Menglei Yao, Hao Jiang, Ling Zhang, Cheng Lian, Xiangwen Gao, Chunzhong Li
Summary: This research reports an innovative supercapacitor that increases energy density by iteratively inhaling chlorine gas in porous carbon materials. Both experimental and theoretical results indicate that porous carbon with a pore size of around 3 nm exhibits the best performance. The supercapacitor adopts multi-wall carbon nanotube as the cathode and NaTi2(PO4)(3) as the anode, achieving high specific energy and negligible capacity loss over 30,000 cycles. By replacing the anode, the energy density can be further improved, and the respiratory supercapacitor demonstrates an extremely high-power density due to the extraordinary reaction kinetics of chlorine gas.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Chemical
Hongbo Jin, Jiahao Zhang, Li Qin, Yanjie Hu, Hao Jiang, Chunzhong Li
Summary: In this study, a dual modification strategy of C-coating and Nb-doping was proposed and applied to improve LiFe0.5Mn0.5PO4 cathode materials. The C-coating layer formed a high-speed conductive network and provided protection to the electrolytes. The Nb-O coordination accelerated ion diffusion and electron transport, while suppressing the Jahn-Teller effect of Mn3+. The dual modifications resulted in LiFe0.5Mn0.5PO4 cathode materials with enhanced lithium-storage capacities and impressive cycling performance.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Jiechao Jiang, Zhengju Zhu, Ying He, Bismark Sarkodie, Wenyi Wang, Hao Jiang, Yanjie Hu, Chunzhong Li
Summary: Catalytic combustion is an important method to reduce toluene pollution, and improving the performance of catalysts is crucial. Oxygen vacancies play a key role in enhancing the catalytic combustion performance. By using flame spray pyrolysis (FSP), two different oxygen vacancy structures were synthesized and their effects on toluene catalytic combustion performance were evaluated. The closely contacted oxygen vacancies (cVo) exhibited enhanced oxygen activation capacity and significantly lower reaction temperatures compared to the separated oxygen vacancy (s-Vo) sample. The FSP synthesis strategy also provided excellent water resistance and high-temperature stability to the catalyst.
Article
Chemistry, Multidisciplinary
Jiahao Zhang, Jingyu Wang, Haijiao Zhang, Yanjie Hu, Hao Jiang, Chunzhong Li
Summary: Developing high-performance electrocatalysts is crucial for the future hydrogen economy. A hierarchically heterostructured Ni(OH)2/Fe-Ni2P electrocatalyst was developed to enhance the hydrogen evolution reaction during alkaline water electrolysis. This electrocatalyst showed improved catalytic activity, electrochemical stability, and efficient synergistic catalysis, making it a promising candidate for alkaline water splitting.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Shengwei Yu, Liyuan Chen, Na Cheng, Jiyuan Lu, Liyuan Bi, Wenhui Zhang, Aiping Chen, Haibo Jiang, Chunzhong Li
Summary: Researchers synthesized Pt1.2Ni/C catalyst with excellent activity and long-term stability for oxygen reduction reaction (ORR), achieving a mass activity of 1.53 A/mgPt, which is 12 times higher than that of commercial Pt/C. The adsorption of abundant water on the Pt1.2Ni alloy surface weakens the adsorption of oxygen, contributing to the ORR performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Yating Wang, Ling Cheng, Wangxin Ge, Yihua Zhu, Jie Zhang, Rongzhen Chen, Ling Zhang, Yuhang Li, Chunzhong Li
Summary: Scientists have localized nanosized Cu2O on three different carbon-based substrates with different charge-promotion effects, and found that these effects can increase the faradaic efficiency (FE) for C2 products. Among them, positively charged boron-doped graphene (BG) has the highest FE, followed by negatively charged nitrogen-doped graphene (NG), and weakly negatively charged reduced graphene oxide (rGO) has the lowest FE.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Tianyu Liu, Yaru Zheng, Caixia Hao, Wenqing Hong, Fengxuan Wang, Hao Jang, Yanjie Hu, Chunzhong Li
Summary: Enhanced output was achieved by designing oriented glass fibers within nano-porous SiO2 film, enabling effective harvesting of renewable energy through the water evaporation process. The ordered glass fibers improved power generation performance by promoting water flow and carrier movement, resulting in an induced open-circuit voltage of 1.4 V and an induced short-circuit current of 400 nA. This provides a performance improvement strategy for evaporation-induced generators. The generated voltage driven by evaporation was found to be related to humidity difference and water flow. The availability of raw materials and the simplicity of the fabrication process also enable easy scalability of the generators.
APPLIED MATERIALS TODAY
(2023)
Article
Chemistry, Multidisciplinary
Zhihong Wang, Wu Wei, Qiang Han, Huawei Zhu, Ling Chen, Yanjie Hu, Hao Jiang, Chunzhong Li
Summary: By regulating the precipitation rates of cations and the distributions of flow field, an elongated primary particles radially aligned Ni-rich cathode was synthesized using a microstructure engineering strategy. The high aspect ratio and favorable atomic arrangement of primary particles enable isotropic strain relaxation, greatly suppressing microcrack formation and propagation, and facilitating Li-ion diffusion. The modified cathode shows superior high-rate performance, long-cycle life, and thermal stability compared with conventional counterparts.
Article
Engineering, Chemical
Lei Dong, Wangxin Ge, Yu Fan, Wenfei Zhang, Hongliang Jiang, Yongqing Zhao, Chunzhong Li
Summary: Cu-based catalysts combined with CTAB as electrolyte additives were used to improve the formate selectivity and partial current density of CO2RR. The hydrophobic interface microenvironment was created by CTAB and disrupted the interaction between interfacial water and surface-adsorbed CO. This study provides a new perspective on controlling the microenvironment to enhance electrosynthesis performance.
Article
Chemistry, Multidisciplinary
Xiaoli Jiang, Lei Tang, Lei Dong, Xuedi Sheng, Wenfei Zhang, Zhen Liu, Jianhua Shen, Hongliang Jiang, Chunzhong Li
Summary: In this study, density functional theory (DFT) simulations were used to investigate the site isolation strategy in electrocatalytic selective hydrogenation of acetylene. The results showed that isolated Cu metal sites have higher energy barriers on overhydrogenation and C-C coupling reactions. Based on this, Cu single-atom catalysts highly dispersed on nitrogen-doped carbon matrix were developed and demonstrated high ethylene selectivity under high concentrations of acetylene. The superior performance was attributed to the weak adsorption of ethylene intermediates and highly energy barriers on C-C coupling at isolated sites, as confirmed by both DFT calculations and experimental results. This study provides a comprehensive understanding of the isolated sites inhibiting the side reactions in electrocatalytic acetylene semihydrogenation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Shengwei Yu, Jiyuan Lu, Liyuan Bi, Xiang Xie, Aiping Chen, Haibo Jiang, Chunzhong Li
Summary: This research demonstrates that enhancing the oxygen adsorption energy through tensile effect can significantly reduce the apparent activation energy and enhance the reactivity of the oxygen reduction reaction (ORR), providing new possibilities for the design and synthesis of ORR catalysts.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhihong Wang, Wu Wei, Qiang Han, Huawei Zhu, Ling Chen, Yanjie Hu, Hao Jiang, Chunzhong Li
Summary: A microstructure engineering strategy is used to synthesize elongated primary particles radially aligned Ni-rich cathodes through regulation of precipitation rates and flow field distributions. The resulting cathode exhibits enlarged lattice distance and highly exposed (003) plane, showing significant advantages such as high-rate, long-cycle life, and thermal stability. After modification, an exceptionally long life is achieved with a capacity retention of 90.1% at 1C and 84.3% at 5C after 1500 cycles within 3.0-4.3 V in a 1.5-Ah pouch cell. This work offers a universal strategy to enhance the durability of Ni-rich cathodes by achieving isotropic strain distribution.
Article
Chemistry, Physical
Lele Cai, Qiang Han, Huawei Zhu, Haifeng Yu, Yanjie Hu, Hao Jiang
Summary: In this study, a Ni-rich cathode material simultaneously doped with antimony (Sb) and coated with LiSbO3 was synthesized. The resulting cathode showed enhanced structural stability, inhibited microcrack formation and propagation, and effectively suppressed secondary particle pulverization and electrolyte erosion. As a result, the optimized cathode exhibited high specific capacity and excellent cycling stability.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Shijia Li, Chuqian Xiao, Rongzhen Chen, Mengyi Wang, Yuting Ma, Kaiwen Luo, Muyao Shen, Yihua Zhu, Yuhang Li, Chunzhong Li
Summary: In this study, Cu-dispersed oxide octahedral molecular sieve (Cu(x)-OMS-1) was used as a catalyst for electrochemical nitrate reduction reaction (NITRR). The introduction of copper optimized the adsorption capabilities of the intermediates in NITRR and inhibited competitive hydrogen evolution reaction (HER) at high current density. The study revealed that copper effectively promoted nitrate protonation during NITRR, resulting in a high current density and Faraday efficiency for nitrate reduction to ammonia.
Article
Chemistry, Multidisciplinary
Kaiyue Zhang, Chuqian Xiao, Yuhang Li, Chunzhong Li
Summary: Electrochemical biomass valorization using a Prussian blue analogue catalyst shows promise in generating value-added chemicals. The NiFe-PBA/NF catalyst exhibits excellent performance in oxidizing various substrates, achieving almost 94.1% FE for formic acid. This work has developed a promising class of catalysts for biomass valorization.
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)
