Article
Engineering, Chemical
Miaomiao Tian, Jing Zhao, Hongmei Liu, Yan Li, Zhengwei Wan, Zeheng Li, Gu Wu, Kun Wang, Tiangui Zhou, Yuanzhong Tan, Yang Hou, Wenbin Ni, Min Ling, Chengdu Liang
Summary: In this study, MoP@NC/S cathode with multiple synergistic mechanisms was constructed, solving the key problems in Li-S battery and improving its performance. MoP@NC/S cathode exhibited a surprising discharge capacity at 0.1 C and demonstrated stability in long cycle life testing.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Yifan Ding, Zixiong Shi, Yingjie Sun, Jianghua Wu, Xiaoqing Pan, Jingyu Sun
Summary: A generic and simple material strategy has been presented to fabricate advanced mediator for improved sulfur electrochemistry. The Li-S cells derived from this strategy exhibit impressive cyclic performances and durable areal capacity, indicating the potential for rationalizing the design and modulation of reliable polysulfide mediators in Li-S batteries.
Article
Chemistry, Physical
Dong Won Kim, Chenrayan Senthil, Sung Mi Jung, Sun-Sik Kim, Hun-Seong Kim, Ji Won Hong, Jou-Hyeon Ahn, Hyun Young Jung
Summary: This study presents a feasible strategy to suppress polysulfide and selectively control ions transport in Li-S batteries by using a new-type ultralight aerofilm membrane. The membrane effectively filters out polysulfides while also providing anchoring and catalysis for better battery performance. The research demonstrates significant improvements in the cycle life and discharge capacity of the Li-S batteries.
ENERGY STORAGE MATERIALS
(2022)
Article
Chemistry, Physical
Chenrayan Senthil, Hyun Young Jung
Summary: To enhance the energy density of Li-S batteries, researchers designed STP cathodes with more than 60% sulfur, capable of cycling under a limited amount of electrolyte. These cathodes showed improved sulfur reactivity and cycle-life.
ENERGY STORAGE MATERIALS
(2023)
Article
Engineering, Environmental
Gayeon Yoo, Soochan Kim, Chalathorn Chanthad, Misuk Cho, Youngkwan Lee
Summary: A multifunctional polymer binder combining a commercial binder and elastic rubber has been developed to address long-term issues with Li-S batteries. The use of PVP and XNBR allows control of sulfur volume changes, regulation of soluble polysulfides, and ensures good dispersion of electrode material. The proposed binder leads to a 300% battery performance improvement after 500 cycles, with a capacity decay of only 0.02% per cycle over 1000 cycles.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Shuanlong Di, Silin Chen, Chengshuai Chang, Shulan Wang, Jihoon Choi, Li Li
Summary: This work introduces faceted lead zirconate titanate with exposed (110) plane as an additive in the cathode of Li-S batteries to suppress the shuttle effect. The faceted ferroelectric with strong internal electric field and sufficient surface polar sites shows more efficient anchoring towards polysulfides compared to its counterparts. Combined with a porous carbon host, the elaborately designed cathode demonstrates excellent cycling stability with a low capacity attenuation rate of 0.047% per cycle after 300 cycles at 1 C. This work advances our understanding of ferroelectric materials engineering and electric field effects on Li-S battery stability, potentially inspiring new strategies for high-performance ferroelectric-based energy devices.
SCRIPTA MATERIALIA
(2023)
Article
Chemistry, Physical
Won-Gwang Lim, Seula Oh, Jooyoung Jeong, Wontae Jang, Kyu In Shim, Seoa Kim, Jeong Woo Han, Sung Gap Im, Jinwoo Lee
Summary: The use of an initiated chemical vapor deposition (iCVD) technique to deposit a polyvinylimidazole (pVIDZ) nanolayer on the separator in Li-S batteries successfully addresses the issues of shuttle phenomenon in cathodes and uncontrolled growth of Li dendrites in anodes, improving cycle stability.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Tomas Kazda, Dominika Capkova, Kamil Jasso, Andrea Fedorkova Strakova, Elena Shembel, Alex Markevich, Marie Sedlarikova
Summary: The study investigates the influence of the water-soluble binder carrageenan on the electrochemical properties of lithium-sulfur batteries, demonstrating that electrodes with carrageenan binder exhibit better stability during cycling and at high C-rates, with lower self-discharge and capacity drop.
Article
Nanoscience & Nanotechnology
Pui Lap Jacob Lee, Vigneshwaran Thangavel, Claude Guery, Christina Trautmann, Maria Eugenia Toimil-Molares, Mathieu Morcrette
Summary: This study explores the use of polymer etched ion-track membranes as separators in Li-S batteries to mitigate the redox shuttle effect. Compared to commercial separators, these membranes offer unique advantages in adjusting and optimizing the density, geometry, and diameter of nanopores, effectively reducing the self-discharge issue of the battery.
Article
Chemistry, Physical
Wen-wen Shao, Jing-xuan Li, Liang Zhong, Heng-fei Wu, Ming-quan Liu, Yong Mei, Li-ping Zhou, Hai-xia Liu, Mao-xiang Jing
Summary: By introducing a high ion conductive solid electrolyte film and adding a flexible organic ether electrolyte, the issues of polysulfide shuttle effect, lithium dendrite growth, and high interfacial impedance in Li-S batteries are solved, leading to high-performance solid-state Li-S batteries.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Multidisciplinary
Meng Ma, Liyun Cao, Kai Yao, Jiayin Li, Koji Kajiyoshi, Jianfeng Huang
Summary: Using hollow urchin-like FeP as a sulfur host can effectively suppress the shuttle effect, exhibit catalytic ability to Li-S, and enhance the cycling stability and kinetics of lithium-sulfur batteries.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Yunxiang Li, Yinxiang Zeng, Ye Chen, Deyan Luan, Shuyan Gao, Xiong Wen (David) Lou
Summary: In this study, a NH4Cl-assisted pyrolysis strategy is developed to fabricate highly mesoporous N-rich carbon (Ni-NC(p)) as a sulfur host for lithium-sulfur batteries. The Ni-NC(p) material exhibits favorable electron/ion transfer, high sulfur loading, and effective confinement of lithium polysulfides, resulting in improved battery performance including specific capacity, rate capability, and cycling stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Nanoscience & Nanotechnology
Yu Chen, Yanyan Li, Jiaqi Xu, Shaoyun Chen, Dongyang Chen
Summary: The design of DQA-TAPFE ion exchange membranes with a rigid fluorinated backbone and flexible multi-cationic side chains shows promising potential for vanadium redox flow battery applications. Compared to traditional dispersal of cationic groups, DQA-TAPFE exhibits higher SO42- conductivity and lower VO2+ permeability, leading to improved energy efficiency and capacity retention in VRFBs.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Taner Zerrin, Ruoxu Shang, Bo Dong, Enrique Cernas Aguilar, Jonathan Malvin, Mihrimah Ozkan, Cengiz S. Ozkan
Summary: The electrolyte-to-sulfur (E/S) ratio has a significant impact on the electrochemical performance of Lithium-Sulfur (Li-S) batteries. An optimal E/S ratio should balance the migration of active materials and the wetting of the active material. Low E/S ratios may result in capacity decay due to electrolyte depletion, while high E/S ratios may lead to dissolved lithium polysulfide species diffusing to the lithium anode surface.
Article
Chemistry, Physical
Wenshuai Lang, Chuang Yue, Man Dang, Gang Wang, Yimin Chen, Fang Hu, Zhiming Liu, Jie Shu
Summary: Three-dimensional graphene networks were successfully fabricated on nickel foam using chemical vapor deposition technique, followed by the deposition of amorphous Ge layer using radio frequency magnetron sputtering method. The Ge-decorated graphene networks exhibited improved electrochemical performance as anodes for lithium-ion batteries compared to directly coated two-dimensional Ge nanoelectrodes on bare Ni foam. The optimized 3D Ge@Gr hybrid electrode achieved significantly enhanced electrochemical cyclability for 1500 long-term cycles under higher current density of 1.2 mA cm-2. The interconnected 3D graphene with enlarged surface area effectively buffered the volume change of the Ge anode and improved electrical/ionic conductivity, resulting in superb stable cyclability.
JOURNAL OF POWER SOURCES
(2023)
Article
Electrochemistry
Yongpeng Li, Tianyi Jiang, He Yang, Da Lei, Xiaoyu Deng, Ce Hao, Fengxiang Zhang, Junling Guo
ELECTROCHIMICA ACTA
(2020)
Article
Nanoscience & Nanotechnology
Xiaoyu Deng, Yongpeng Li, Lv Li, Shaoming Qiao, Da Lei, Xiaoshan Shi, Fengxiang Zhang
Summary: A new sulfonated covalent organic framework modified separator for lithium-sulfur batteries is introduced in this study, which effectively reduces the shuttle effect of polysulfide, improving the battery's cycling stability and discharge capacity. After 120 cycles, the battery with the modified separator shows significantly higher capacity retention compared to a regular separator.
Article
Chemistry, Physical
Xu Zhang, Shixuan Yang, Wang Lu, Da Lei, Yuhan Tian, Minggang Guo, Panpan Mi, Ning Qu, Yingyuan Zhao
Summary: An innovative MXene-induced strategy was reported to synthesize Ti3C2Tx/Ni-MOFs for high-performance supercapacitors, showing promising electrochemical performance with improved conductivity and additional electric double layer capacitance. The synergistic effects of 2D MXenes and Ni-MOFs contribute to the rich activity sites for redox reactions and shortened ion transport path, leading to enhanced rate capability and high energy density in supercapacitor applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Electrochemistry
Xu Zhang, Yuhan Tian, Wang Lu, Shixuan Yang, Ning Qu, Qiang Zhang, Da Lei, Anmin Liu
Summary: In this study, O-doped Co3S4 hollow nanosheets were successfully prepared as electrode materials for supercapacitors, exhibiting remarkable electrochemical performance with high specific capacitance and good rate capability. This work provides useful guidance for the development of O-doped cobalt sulfides hollow nanosheets for supercapacitors.
Article
Chemistry, Multidisciplinary
Da Lei, Wenzhe Shang, Xu Zhang, Yongpeng Li, Shaoming Qiao, Yiping Zhong, Xiaoyu Deng, Xiaoshan Shi, Qiang Zhang, Ce Hao, Xuedan Song, Fengxiang Zhang
Summary: A novel MoS2-MoO3/CS composite was designed and synthesized to modify the separator of lithium-sulfur batteries, showing strong surface affinity toward polysulfides and good catalytic activity. The composite exhibited high discharge capacity, good cycling stability, and low discharge capacity decay rate, offering a facile design for high-performance Li-S batteries.
Article
Engineering, Environmental
Yongpeng Li, Da Lei, Tianyi Jiang, Junling Guo, Xiaoyu Deng, Xu Zhang, Ce Hao, Fengxiang Zhang
Summary: Phosphorous-doped Co9S8 nanoparticles embedded in 3D spongy carbon sheets as electrochemical catalyst show improved interaction with LiPS, leading to enhanced cycling stability and areal capacity in lithium sulfur batteries.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Xu Zhang, Wang Lu, Yuhan Tian, Shixuan Yang, Qiang Zhang, Da Lei, Yingyuan Zhao
Summary: NiCo-LDH hollow spheres were prepared using Co-glycerate as the sacrificial template and cobalt source, showing high specific capacitance and good capacitance retention rate. Asymmetric supercapacitors fabricated with these hollow spheres as positive electrode exhibited a large energy density, providing a new approach for supercapacitor research.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Xiaoshan Shi, Da Lei, Shaoming Qiao, Qiang Zhang, Qian Wang, Xiaoyu Deng, Jianhui Liu, Gaohong He, Fengxiang Zhang
Summary: The rechargeable lithium-sulfur battery, known for its high energy density and low-cost materials, still faces challenges such as the polysulfide shuttle effect. In this study, a modified separator was designed and fabricated using graphene-supported NiSe2 nanoparticles derived from metal-organic frameworks. The NiSe2 nanoparticles effectively adsorb polysulfides and accelerate their conversion, while also providing abundant active sites.
ACS APPLIED NANO MATERIALS
(2022)
Article
Engineering, Environmental
Shaoming Qiao, Da Lei, Qian Wang, Xiaoshan Shi, Qiang Zhang, Chunhong Huang, Anmin Liu, Gaohong He, Fengxiang Zhang
Summary: This study reports a defect engineering strategy using etch-evaporation to fabricate manganese-nitrogen doped porous carbon for separator modification. The modified separator exhibits high conductivity, strong immobilization and excellent catalytic activity, leading to improved performance of lithium-sulfur batteries.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Applied
Da Lei, Wenzhe Shang, Xu Zhang, Yongpeng Li, Xiaoshan Shi, Shaoming Qiao, Qian Wang, Qiang Zhang, Ce Hao, Hui Xu, Guohua Chen, Gaohong He, Fengxiang Zhang
Summary: This study presents a facile reduction strategy using ethylene glycol to dope oxygen atoms into MoS2, which unlocks its inert basal planes and enhances catalytic activity. The oxygen-doped MoS2 provides abundant adsorption/catalytic sites and improved ion transport, leading to improved performance of lithium sulfur batteries.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Qiang Zhang, Xu Zhang, Shaoming Qiao, Da Lei, Qian Wang, Xiaoshan Shi, Chunhong Huang, Wang Lu, Shixuan Yang, Yuhan Tian, Zhiqing Liu, Gaohong He, Fengxiang Zhang
Summary: A Mott-Schottky junction catalyst composed of Co nanoparticles and Ni2P was designed to improve polysulfide kinetics in lithium-sulfur batteries. The rearrangement of charges at the Schottky junction interface and the construction of the built-in electric field were found to be crucial for lowering the activation energy of the reactions. Experimental and electrochemical tests demonstrated that the Schottky catalytic effect enhanced the synergistic catalytic effect. The proposed Schottky heterojunction structure provides profound guidance for efficient and rational catalyst design.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Qiang Zhang, Xu Zhang, Da Lei, Shaoming Qiao, Qian Wang, Xiaoshan Shi, Chunhong Huang, Gaohong He, Fengxiang Zhang
Summary: Transition-metal alloy nanoparticles embedded in hollow carbon spheres (NiCo@HCS) were fabricated as electrocatalysts for separator modification. The NiCo@HCS-modified battery showed improved adsorption capacity, kinetics, and excellent electrochemical performance under high sulfur content conditions.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Qian Wang, Anmin Liu, Shaoming Qiao, Qiang Zhang, Chunhong Huang, Da Lei, Xiaoshan Shi, Gaohong He, Fengxiang Zhang
Summary: The low cycle stability of lithium sulfur (Li-S) batteries due to the shuttle effect and low conversion kinetics of polysulfides hinders their practical application. The MXene@WS2 heterostructure can provide more catalytic/adsorption active sites and facilitate electron transport, improving polysulfides conversion and long-term cycle stability. In this study, the MXene@WS2 heterostructure was constructed by in-situ hydrothermal growth for separator modification, and it exhibited high specific capacity and excellent cycling stability in Li-S batteries.
Article
Chemistry, Physical
Shaoming Qiao, Qian Wang, Da Lei, Xiaoshan Shi, Qiang Zhang, Chunhong Huang, Anmin Liu, Gaohong He, Fengxiang Zhang
Summary: In this study, a highly active Mn/Co-N-C catalyst with dual atom Mn/Co active sites coordinated on a N doped carbon support was reported. The catalyst was prepared by using a specific initiator and carbon support material. The Mn/Co-N-C catalyst exhibited excellent performance in lithium sulfur batteries, showing high capacity and cycle stability. Therefore, this study provides an effective new strategy for preparing highly active catalysts.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Multidisciplinary
Xu Zhang, Ning Qu, Shixuan Yang, Da Lei, Anmin Liu, Quan Zhou
Summary: This study successfully synthesized hollow Ni/Co-MOFs and improved the redox reaction activity and electrochemical performance of electrode materials by introducing an appropriate amount of Co ions.
MATERIALS CHEMISTRY FRONTIERS
(2021)
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)
