Article
Nanoscience & Nanotechnology
Sikandar Iqbal, Lu Wang, Zhen Kong, Yanjun Zhai, Xiuping Sun, Fengbo Wang, Zhongxin Jing, Xiyu He, Jianmin Dou, Liqiang Xu
Summary: Metal sulfides are promising anode materials for potassium-ion batteries (PIBs) due to their high theoretical capacity, but their low conductivity and poor cycling stability limit their practical applications. In this study, stable CoS2/ZnS@rGO hybrid nanocomposites were successfully synthesized, showing excellent long-term cyclability for potassium ion storage. Furthermore, the strategy of designing hybrid nanocomposites could be extended to other bimetallic sulfide materials, offering a new approach for achieving excellent electrochemical performances in energy storage applications.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Shaokun Chong, Xuedong Wei, Yifang Wu, Lan Sun, Chengyong Shu, Qianbo Lu, Yingzhen Hu, Guozhong Cao, Wei Huang
Summary: In this study, MoSe2 nano-sheets anchored on reduced graphene oxide were successfully prepared as electrodes for sodium-ion batteries and potassium-ion batteries. The electrodes exhibited good reversible specific capacity, cycling stability, and rate capability, with enhanced structural stability through chemical bonds.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Ruiqi Tian, Liping Duan, Yifan Xu, Yuehua Man, Jianlu Sun, Jianchun Bao, Xiaosi Zhou
Summary: This article proposes a synthesis method to embed SnSb2Se4 nanoparticles into graphene nanosheets, which effectively solves the volume change and irreversible electrochemical reaction issues of chalcogenide anodes. The obtained composite exhibits excellent potassium-ion storage performance due to the porous network framework and synergistic interactions among multiple elements.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Physical
Linzhe Wang, Jian Qin, Zhimin Bai, Huaming Qian, Yanyan Cao, Hirbod Maleki Kheimeh Sari, Yukun Xi, Hui Shan, Shuai Wang, Jiaxuan Zuo, Xiaohua Pu, Wenbin Li, Jingjing Wang, Xifei Li
Summary: In this study, in situ Zn-doped NCM material was successfully designed by atomic layer deposition combined with annealing. Compared with ex situ Zn-doped NCM, in situ Zn-NCM exhibited better stability and reduced surface defects due to its lower migration energy barrier and more uniform distribution of heteroatoms. As a result, it showed higher reversible capacity and initial Coulombic efficiency. Therefore, in situ doping is an effective strategy to enhance the performance of lithium-ion battery cathodes.
Article
Chemistry, Physical
Vidushi Sharma, Dibakar Datta
Summary: This study investigates the atomic-level characteristics and electrochemistry of a KxSe cathode enclosed in hexagonal carbon lattices with a layered graphene matrix and multiwalled carbon nanotubes. The findings demonstrate that graphene exhibits strong interaction with long-chain polyselenides at low K concentrations and enhances the reactivity between Se and K at high K concentrations. The intercalation voltage for the graphene-enclosed KxSe cathode reaction intermediates is also calculated. However, operating at higher voltages may result in the formation of reaction intermediates that could lead to irreversible capacity losses in the battery.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Romain Wernert, Long H. B. Nguyen, Antonella Iadecola, Francois Weill, Francois Fauth, Laure Monconduit, Dany Carlier, Laurence Croguennec
Summary: The current performance of Li-, Na-, or K-ion batteries is mainly limited by the specific capacity of the positive electrode. It is crucial to achieve the highest capacity possible for a given electrode material. In this study, the performance limitation of KVPO4F, a potential material for K-ion batteries, is investigated. The capacity limitation of KVPO4F is found to be related to a kinetic competition between K+ deinsertion and side reactions caused by electrolyte degradation at high potentials.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Song Wang, Xu Guo, Kun Li, Guiting Wang, Shaokang Su, Jingfeng Wu, Li Li, Ying Xie, Chenfeng Guo, Kai Pan
Summary: An anode material composed of monodispersed Ni12P5 nanocrystals in situ grown into three dimensional (3D) reduced graphene oxide (rGO) matrix has been fabricated using an in situ hot-injection synthetic method. The Ni12P5/rGO nanocomposites exhibit excellent electrochemical lithium-storage performance, including long-life cycling stability, high heat resistance, and high rate capability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Jianzhi Xu, Liping Duan, Jiaying Liao, Haowei Tang, Jun Lin, Xiaosi Zhou
Summary: This study proposes an infiltration-calcination method to confine in-situ grown KVPF into mesoporous carbon CMK-3, resulting in a KVPF@CMK-3 nanocomposite with three-dimensional carbon channels that enhance K+/electron transport and stabilize the material's structure. Additionally, V-F-C bonds formed at the interface of KVPF and CMK-3 reduce F loss and stabilize the electrode interface. The KVPF@CMK-3 nanocomposite exhibits superior reversible capacity, outstanding rate performance, and steady cycling performance as a cathode material for PIBs.
GREEN ENERGY & ENVIRONMENT
(2023)
Article
Chemistry, Physical
Zhimin Shen, Juan Du, Yahui Mo, Aibing Chen
Summary: A nitrogen-doped mesoporous carbon layer-modified reduced graphene oxide (rGONC) material was prepared with high energy storage performance, showing excellent reversible capacity, cycling life, and rate capability in potassium ion batteries and supercapacitors.
Article
Chemistry, Physical
Bidhan Pandit, Sachin R. Rondiya, Shoyebmohamad F. Shaikh, Mohd Ubaidullah, Ricardo Amaral, Nelson Y. Dzade, Emad S. Goda, Abu ul Hassan Sarwar Rana, Harjot Singh Gill, Tokeer Ahmad
Summary: Potassium-ion batteries (KIBs) are promising energy storage devices with low cost and excellent K+ diffusion properties. Manganese dioxide (alpha-MnO2) nanorods cathode exhibits fast reversible K+ storage with high capacity and stability. The K+ intercalation/deintercalation in alpha-MnO2 is confirmed through experimental techniques and DFT simulations, and the nanorod structure facilitates electron conduction and strong electrode-electrolyte interface for consistent and superior performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Elena V. V. Shchurik, Olga A. A. Kraevaya, Sergey G. G. Vasil'ev, Ivan S. S. Zhidkov, Ernst Z. Z. Kurmaev, Alexander F. F. Shestakov, Pavel A. A. Troshin
Summary: The development of organic electrode materials is crucial due to the increasing demand for affordable, safe, recyclable, and environmentally friendly batteries. In this study, a novel redox-active polymer consisting of a polyaniline-type conjugated backbone and quinizarin and anthraquinone units was synthesized. The polymer exhibited promising performance characteristics as a cathode material in both lithium and potassium cells, with high discharge capacity and excellent stability. The synthetic availability and low projected cost of the designed material make it suitable for practical implementation in scalable and inexpensive organic batteries, which are emerging as a sustainable energy storage technology.
Article
Materials Science, Multidisciplinary
Lingjiang Kou, Yong Wang, Jiajia Song
Summary: In this study, reduced graphene oxide nanosheets decorated carbon-coated NH4V3O8 (G-NVO@C) electrode material was synthesized through a facile one-step solvothermal method. The G-NVO@C electrode exhibited outstanding cycling stability and high discharge capacity, making it a promising cathode material for lithium-ion batteries.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Chemistry, Physical
Roman R. Kapaev, Alexander F. Shestakov, Sergey G. Vasil'ev, Keith J. Stevenson
Summary: The ladder-type conjugated polymer with hexaazatriphenylene moieties serves as a promising cathode material for Li-, Na-, and K-based batteries, exhibiting high specific capacities and excellent cycling stability. The material also shows remarkable capacity retention even at high discharge rates.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Yongchao Jiang, Jie Liang, Luchao Yue, Yonglan Luo, Qian Liu, Qingquan Kong, Xiangzhe Kong, Abdullah M. Asiri, Kun Zhou, Xuping Sun
Summary: The study presents a CoP/NC@rGO composite material, which encapsulates nano-scale CoP particles and alleviates volume changes with the combination of ZIF-67 and rGO functionalities, showing remarkable capacity performance even after 2800 cycles at 1 A g(-1) conditions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Rui Yu, Rongli Jiang, Zihan Zhou
Summary: To solve the problem of capacity attenuation in SiO2 during charge and discharge, a rGO@yolk-shell SiO2 structure was designed using reduced graphene oxide as the conductive network and loading carbon-coated SiO2 as the yolk-shell structure. The yolk-shell structure effectively mitigates volume change without damaging the carbon layer, and the combination of rGO and the carbon layer enables efficient electron transport. As an anode material for lithium-ion batteries, rGO@yolk-shell SiO2 exhibits stable cycling performance with a capacity of 616 mAh g-1 after 358 cycles at 0.1 A g-1. (c) 2022 Elsevier B.V. All rights reserved.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Zhuangzhuang Zhang, Qiao Hu, Jiaying Liao, Yifan Xu, Ruiqi Tian, Yichen Du, Jian Shen, Xiaosi Zhou
Summary: A self-templating strategy was used to prepare homogeneous P2-K0.6CoO2 (KCO) microcubes, which showed improved electrochemical properties for potassium storage due to the reduced interface between the electrolyte and the active material.
Article
Chemistry, Multidisciplinary
Yating Fei, Yuehua Man, Jianlu Sun, Yichen Du, Bingbing Chen, Jianchun Bao, Xiaosi Zhou
Summary: Magnesium-ion batteries (MIBs) are potential next-generation energy storage systems with high security and theoretical energy density. However, the lack of cathode materials with high specific capacity and cyclic stability hampers the development of MIBs. This study proposes a template-based strategy to fabricate metal-organic framework-derived CuS quantum dots encapsulated in porous carbon nanorods, which exhibit remarkable performance in magnesium storage.
Article
Materials Science, Multidisciplinary
Chuannan Zhu, Xuwen Zhao, Yifan Xu, Liping Duan, Ruiqi Tian, Jiaying Liao, Xiaosi Zhou
Summary: Due to their high capacities and abundant resources, transition metal sulfides (TMSs) have been proven attractive anode materials for potassium-ion (K-ion) batteries. Nevertheless, TMSs are usually limited by poor electrical conductivity and large volume expansion, leading to structural instability and inferior battery cyclability. In this study, embedding ultrasmall Cu2S nanoparticles in carbon nanowires (Cu2S@C NWs) significantly alleviated the nanoparticle aggregation and structural degradation, improving the morphological integrity and enhancing the cycle life of the batteries. The Cu2S@C NW anode exhibited a large reversible capacity, excellent rate capability, and high-capacity retention.
SCIENCE CHINA-MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Ruiqi Tian, Liping Duan, Yifan Xu, Yuehua Man, Jianlu Sun, Jianchun Bao, Xiaosi Zhou
Summary: This article proposes a synthesis method to embed SnSb2Se4 nanoparticles into graphene nanosheets, which effectively solves the volume change and irreversible electrochemical reaction issues of chalcogenide anodes. The obtained composite exhibits excellent potassium-ion storage performance due to the porous network framework and synergistic interactions among multiple elements.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Engineering, Environmental
Yuehua Man, Yating Fei, Liping Duan, Ruiqi Tian, An Li, Zeyu Yuan, Xiaosi Zhou
Summary: Magnesium-ion batteries (MIBs) are a promising alternative to lithium-ion batteries, but their current cathode materials have issues with structural instability and poor cycle performance. This study focuses on exploring high-performance cathode materials for MIBs, specifically investigating vanadium oxide nanoflowers. The synthesized V5O12 center dot 6H(2)O nanoflowers exhibit encouraging electrochemical properties, making them a potential cathode material for MIBs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Jianlu Sun, Ruiqi Tian, Yuehua Man, Yating Fei, Xiaosi Zhou
Summary: We synthesized core-shell NH2-SiO2@TP-COF by condensation between 1,3,5-triformylbenzene and p-phenylenediamine, using amino-modified SiO2 nanospheres as templates. NH2-SiO2@TP-COF was etched by NaOH to obtain imine-based TP-COF hollow nanospheres, which exhibited excellent potassium storage performance. C = N groups and benzenes were identified as active sites for K+ storage through analysis and calculations.
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Multidisciplinary
An Li, Yuehua Man, Jiaying Liao, Liping Duan, Xiulei Ji, Xiaosi Zhou
Summary: A template-engaged reduction method was proposed to prepare Prussian white with low defects and water content. The spindle-like morphology inherited from the precursor provided sufficient active sites and reduced the ion diffusion path, resulting in remarkable potassium storage properties.
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)
Article
Chemistry, Physical
Liping Duan, Haowei Tang, Xifan Xu, Jiaying Liao, Xiaodong Li, Guangmin Zhou, Xiaosi Zhou
Summary: Potassium-ion batteries (PIBs) are highly promising for next-generation energy storage due to their high theoretical energy density and abundant natural resources. To overcome the challenges of large volume expansion and sluggish K+ transport, researchers have developed a new synthetic method to create a high-efficiency PIB cathode material called KMFON. The synthesized KMFON exhibits large interlayer spacing, small K+ migration energy barrier, high electronic conductivity, and fast K+ transport kinetics. It demonstrates excellent capacity, rate performance, and cycling performance, highlighting its potential as a cathode material for PIBs.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Haowei Tang, Liping Duan, Jiaying Liao, Xinru Sheng, Jianzhi Xu, Xiaosi Zhou
Summary: With the development of electrical energy storage technology, the need for new generation rechargeable batteries with low cost, high capacity, and long cycle life is crucial. Alkali-metal ion batteries (AIBs) have gained attention due to their high capacity and impressive performance. Transition metal (TM) layered oxides, as a typical AIB cathode material, have been widely studied; however, they have limitations in capacity retention and structural stability. This review summarizes the effect of magnesium ion doping on the structure and performance of AIBs, discussing the various modification strategies and future development trends for advanced AIBs.
ENERGY STORAGE MATERIALS
(2023)
Review
Chemistry, Physical
Jianlu Sun, Yating Fei, Haowei Tang, Jianchun Bao, Qichun Zhang, Xiaosi Zhou
Summary: Covalent organic frameworks (COFs) are promising electrode materials for high-valent metal-ion batteries (HMIBs), with flexible molecular structure and ability to accommodate different metal ions and buffer electrode volume expansion. This article reviews the history and recent progress of COF electrode materials in zinc-ion batteries, magnesium-ion batteries, calcium-ion batteries, and aluminum-ion batteries, highlighting the problems of current HMIB materials and suggesting strategies for improving their performance, such as active centers, electronic conductivity, electrolytes, characterization techniques, and theoretical exploration.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Jianzhi Xu, Liping Duan, Jiaying Liao, Haowei Tang, Jun Lin, Xiaosi Zhou
Summary: This study proposes an infiltration-calcination method to confine in-situ grown KVPF into mesoporous carbon CMK-3, resulting in a KVPF@CMK-3 nanocomposite with three-dimensional carbon channels that enhance K+/electron transport and stabilize the material's structure. Additionally, V-F-C bonds formed at the interface of KVPF and CMK-3 reduce F loss and stabilize the electrode interface. The KVPF@CMK-3 nanocomposite exhibits superior reversible capacity, outstanding rate performance, and steady cycling performance as a cathode material for PIBs.
GREEN ENERGY & ENVIRONMENT
(2023)
Review
Chemistry, Physical
Zeyu Yuan, Anni Chen, Jiaying Liao, Lili Song, Xiaosi Zhou
Summary: Alkali metal batteries are considered the most promising energy storage devices for achieving high energy density. This review focuses on the design of electrolytes for stable energy storage in these batteries. The concept of generalized local high-concentration electrolyte (g-LHCE) is proposed, and its design principles are summarized. The progress and future prospects of g-LHCE in terms of high voltage, solid-liquid interface, low temperature, and nonflammability are discussed.
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)
