Article
Chemistry, Inorganic & Nuclear
Mengyuan Qin, Guiyuan Ma, Wenxue Tan, Zunhao Fan, Xing Xin
Summary: Utilizing transition metal elements (Ni, Fe, Co) to design heterojunction catalysts is an effective approach for enhancing the efficiency of electrocatalytic water splitting. In this study, an n-n type junction was constructed uniformly in a CoFe-LDH@NiCoP/NF electrode through electrodeposition. This not only enhanced the conductivity and kinetic performance but also improved the electrocatalytic stability of the catalysts.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Avishek Dey, Gauthaman Chandrabose, Lois A. O. Damptey, E. S. Erakulan, Ranjit Thapa, Siarhei Zhuk, Goutam Kumar Dalapati, Seeram Ramakrishna, Nicholas St. J. Braithwaite, Amir Shirzadi, Satheesh Krishnamurthy
Summary: A novel method using atmospheric pressure plasma jet (APPJ) was demonstrated to fabricate Cu2 0/CuO heterojunction electrodes with favorable band alignment, producing nanoscale CuO surface features with low density of interfacial defects. The electrode showed remarkable performance in oxygen evolution reaction (OER) and photocatalytic hydrogen evolution reaction (HER). The electronic structure modeling revealed shifts in band centers at the interface, contributing to increased catalytic activity of the heterostructure. The study highlighted the potential of APPJ functionalization in tuning surface electronic properties of copper oxide catalysts for enhanced efficiency in OER and HER water splitting.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Kinjal B. Patel, Bhavesh Parmar, Krishnan Ravi, Rajesh Patidar, Gopala Ram Bhadu, Jayesh C. Chaudhari, Divesh N. Srivastava
Summary: This research develops an efficient bifunctional electrocatalyst for both hydrogen and oxygen reactions. Through simple pyrolysis of a nickel-based metal organic framework at temperatures of 600, 700, and 800 ℃, three bifunctional electrocatalysts, Ni@NCS-600, Ni@NCS-700, and Ni@NCS-800, were prepared. Among them, Ni@NCS-800 exhibits extremely low overpotential and shows high catalytic activity comparable to precious state-of-the-art catalysts (RuO2 and Pt/C).
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Xuebin Hou, Kaifeng Xie, Zelong Huang, Chen Shi, Qufu Wei, Yi Hu
Summary: MoS2@Co9S8/C composite nanofibers with a blossom branch distributed structure were prepared via a facile method, and the close mutual combination between MoS2 and Co9S8 enhances the synergistic effect of the heterointerface, improving the catalytic reaction. The composite nanofibers exhibit high activity toward hydrogen and oxygen evolution reactions, providing a facile strategy for designing a heterostructure with close mutual heterogeneous combination and without aggregation.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Davide Salvo, Dario Mosconi, Alevtina Neyman, Maya Bar-Sadan, Laura Calvillo, Gaetano Granozzi, Mattia Cattelan, Stefano Agnoli
Summary: Mixed Ni/Co and Ni/Fe metal phosphides with different metal ratios were synthesized through phosphidization of high-surface-area hydroxides grown hydrothermally on carbon cloth. The materials were characterized by X-ray photoemission spectroscopy, X-ray diffraction, energy dispersive X-ray analysis, and electron microscopies. Electrochemical water splitting experiments showed that the best performance in the hydrogen evolution reaction was achieved by materials containing a high amount of ternary compounds, such as NiCoP and NiFeP, with outstanding performance at only 50 mV to achieve 10 mA/cm(2). The best performance in the oxygen evolution reaction was achieved by Ni-Fe materials, which resulted in strong surface oxidation and dissolution of the phosphide/phosphate component, leading to the formation of corresponding metal oxides and hydroxides.
Article
Chemistry, Physical
Abdul Hanan, Muhammad Nazim Lakhan, Dong Shu, Altaf Hussain, Mukhtiar Ahmed, Vinod Kumar, Dianxue Cao, Irfan Ali Soomro
Summary: This study focuses on a new type of electrocatalyst, which combines cobalt ferrite oxide (Co2FeO4) and palladium oxide (PdO) nanostructures prepared through hydrothermal and ultraviolet (UV) irradiation techniques. This catalyst exhibits excellent electrocatalytic performance for water splitting in alkaline medium, with high concentration of active sites, improved electrical conductivity, and stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Qian Zhou, Lijuan Zhang, Xiayan Wang
Summary: A new type of catalyst, La2O3-Co/AB, was prepared by a composite synthesis strategy using a rare earth La-doped zeolite imidazole framework-67 (ZIF-67) as a precursor. The introduction of acetylene black (AB) provided abundant anchor sites and improved the activity and conductivity of the catalyst. The catalyst exhibited high ORR half-wave potential and low OER overpotential, attributed to the rich CoNx local environment, heterostructure with internal electric field, and oxygen vacancies.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Inorganic & Nuclear
Gosipathala Sreedhar, Subrata Kundu, Anup Kuchipudi, Sreenivasan Nagappan, Arun Karmakar
Summary: Hydrogen is considered as a great alternative to carbon-based fossil fuels, and electro-catalytic water splitting is an efficient method for hydrogen production. This study focuses on designing a catalyst with low overpotential and high stability to improve hydrogen evolution reaction (HER) activity. By decorating LaCrO3 with Ru nanoparticles, the electrocatalytic activity was significantly enhanced.
INORGANIC CHEMISTRY
(2022)
Article
Electrochemistry
S. Brindha Devi, R. Navamathavan
Summary: In order to meet the demand for green and clean technology, a novel electrocatalyst has been developed for overall water-splitting. The hybrid non-noble metal catalyst nanocomposite of Ti3C2-CoS2 (TC-CS) was created as a bifunctional electrocatalyst for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The nanocomposite exhibits a low overpotential for both HER and OER, making it a promising candidate for future energy technology revolution.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Applied
Xiaofei Gong, Haihong Zhong, Luis Alberto Estudillo-Wong, Nicolas Alonso -Vante, Yongjun Feng, Dianqing Li
Summary: Bimetallic cobalt-nickel sulfide nanoparticles anchored on S-, N-codoped holey carbon nanosheets showed a hydrangea-like morphology. The electrocatalysts exhibited enhanced electrocatalytic activity and stable bifunctional performance for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). The structure and performance of the catalysts were influenced by the sulfurization temperature.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Engineering, Environmental
Jiaqi Pan, Yueyue Fu, Guangsheng Xiao, Jingjing Niu, Jun Cao, Jingjing Wang, Yingying Zheng, Chaorong Li
Summary: The fabrication of CoP/FTO synergetic modified ZnO/LaCrO3 nanoarrays heterojunction has improved the HER performance and overall water splitting performance. The CoP provides sufficient HER active sites, FTO promotes OER, and the ZnO/LaCrO3 nanoarrays heterojunction enhances carrier efficiency and solar efficiency.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Hanpeng Deng, Hunan Jiang, Kun Wang, Zhenyu Wang, Bin Wang, Zuowan Zhou, Jinyang Li
Summary: Developing efficient and robust electrocatalysts for water splitting is crucial, but the slow oxygen evolution reaction (OER) process has been a major obstacle. Recently, amorphous/crystalline heterophase engineering has emerged as a promising approach for modulating the electronic structures of OER catalysts. In this study, amorphous/crystalline NiFe2O4 induced by vanadium doping was combined with NiP heterojunction, demonstrating a synergistic effect in electronic structure modulation and enhanced conductivity.
NANOTECHNOLOGY REVIEWS
(2022)
Article
Chemistry, Physical
Limei Lu, Yihe Zhang, Zhensheng Chen, Feng Feng, Zequn Ma, Shuting Zhang, Kaixuan Teng, Qi An
Summary: Increasing the diversity of elements has been found to enhance the electrochemical and photoelectrochemical catalytic capacities of HER and OER, with favorable electronic structures and strengthened internal electric fields playing important roles in the observed performance improvements.
APPLIED SURFACE SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Yu Sun, Qiao Wang, Zhongyuan Liu
Summary: This study proposes a novel and facile method to synthesize controllable thin-layered Co3O4 catalysts with graphene as a conductive matrix, enhancing overall N2 fixation performance. The sandwiched Co3O4-x/GO catalysts show exposed coordination unsaturated active sites and numerous oxygen vacancies, leading to excellent electrochemical NRR activity. The introduction of oxygen vacancies in thin-layered cobalt oxides increases the density of states near the Fermi level, accelerating the rate-determining step of the NRR. The sandwiched Co3O4-x/GO catalyst also exhibits low overpotential and outstanding durability for the anode OER.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Ninggui Ma, Yaqin Zhang, Yuhang Wang, Changxiong Huang, Jun Zhao, Bochun Liang, Jun Fan
Summary: In this study, the catalytic performance of Pt-doped dual transition metal (DTM) Janus-MXenes as single-atom catalysts (SACs) was systematically studied using first principles calculations and machine learning models. The stability and electronic properties of the Janus-MXenes were investigated, and several excellent catalysts with ultralow overpotential were identified. Importantly, machine learning models were used to uncover the importance of descriptors affecting overpotential and reveal the origin of the catalytic activity of SACs. This work reduces the research costs of SACs and provides guidance for designing high-performance catalysts.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Xingwang Zhu, Zhaolong Wang, Kang Zhong, Qidi Li, Penghui Ding, Ziyi Feng, Jinman Yang, Yansheng Du, Yanhua Song, Yingjie Hua, Junjie Yuan, Yuanbin She, Huaming Li, Hui Xu
Summary: By constructing BiO2-x nanoparticles on Bi2MoO6 nanoflowers, a stable and highly efficient Bi2MoO6/BiO2-x heterojunction was formed, significantly enhancing the rate of photocatalytic CO2 reduction.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Kang Zhong, Xingwang Zhu, Jinman Yang, Zhao Mo, Junchao Qian, Minqiang He, Yanhua Song, Jinyuan Liu, Hanxiang Chen, Huaming Li, Hui Xu
Summary: Photocatalytic conversion of carbon dioxide into fuels and chemicals is a promising method for carbon neutralization. Researchers have discovered that doping oxygen into the ultrathin structure of g-C3N4 can improve the efficiency of CO2 reduction. Additionally, density functional theory calculations have shown that oxygen doping introduces new impurity energy levels, making electrons easier to be excited and enhancing the catalyst's performance.
Article
Chemistry, Multidisciplinary
Gaopeng Liu, Bin Wang, Xingwang Zhu, Penghui Ding, Junze Zhao, Huaming Li, Ziran Chen, Wenshuai Zhu, Jiexiang Xia
Summary: By constructing edge-site-rich ordered macroporous BiOCl, this study effectively enhances the catalytic performance of semiconductors, facilitating the conversion process of CO2.
Article
Chemistry, Inorganic & Nuclear
Jinzhou Chen, Xianglin Zhu, Zhifeng Jiang, Wei Zhang, Haiyan Ji, Xingwang Zhu, Yanhua Song, Zhao Mo, Huaming Li, Hui Xu
Summary: The superior photocatalytic performance of two-dimensional graphitic carbon nitride (2D CN) is due to its high charge separation efficiency and rich active sites, but the 2D structure also has weaknesses such as agglomeration and wider bandgap. In this study, a brown mesoporous carbon nitride photocatalyst doped with phosphorus (BMCN) was prepared to address these defects, resulting in an enhanced visible light response and stable mesoporous structure with rich active sites, leading to a significantly higher H-2 evolution rate compared to pure 2D CN.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Physical
Ziyi Feng, Xingwang Zhu, Jinman Yang, Kang Zhong, Zhifeng Jiang, Qing Yu, Yanhua Song, Yingjie Hua, Huaming Li, Hui Xu
Summary: The reactivity of Co3O4 nanosheets with different crystal facets exposed to CO2 reduction was studied. The Co3O4-{112} facet showed higher photoreactivity compared to Co3O4-{111}. The difference in reactivity was attributed to the different exposing facets, leading to effective separation of photogenerated carriers and higher activity.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Li Li, Xingwang Zhu, Zhou Zhou, Zhaolong Wang, Yanhua Song, Zhao Mo, Junjie Yuan, Juan Yang, Jianjian Yi, Hui Xu
Summary: This work investigates the crystal phase dependent photo- and electrocatalytic oxygen evolution reaction (OER) performance of CoSe2. It is found that CoSe2 with orthorhombic phase shows a higher OER performance than that with cubic phase. In addition, the photocatalytic performance of o-CoSe2/Fe2O3 can be qualitatively changed from 0 to 1, while c-CoSe2/Fe2O3 cannot work under the same conditions. The key factor leading to the crystal phase-dependent performance is identified as the decreased activation barrier of H2O on the o-CoSe2 surface.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
An-Qi Zhou, Jin-Man Yang, Xing-Wang Zhu, Xiang-Lin Zhu, Jin-Yuan Liu, Kang Zhong, Han-Xiang Chen, Jin-Yu Chu, Yan-Sheng Du, Yan-Hua Song, Jun-Chao Qian, Hua-Ming Li, Hui Xu
Summary: Graphite phase carbon nitride (g-C3N4) is a promising catalyst for artificial photocatalytic carbon dioxide (CO2) reduction. In this study, NiCo layered double hydroxide (NiCo LDH) nanoflowers were self-assembled with ultrathin graphite phase carbon nitride (g-C3N4) using an ultrasonic stirring strategy. The resulting LDH-CN photocatalysts exhibited rich active sites and a Z-scheme heterojunction, which significantly enhanced the CO2 reduction activity and selectivity.
Article
Engineering, Environmental
Jianfeng Tian, Kang Zhong, Xingwang Zhu, Jinman Yang, Zhao Mo, Jinyuan Liu, Jiachao Dai, Yuanbin She, Yanhua Song, Huaming Li, Hui Xu
Summary: The selectivity and activity of photocatalytic CO2 reduction can be effectively enhanced by modulating the reduction pathway of CO2 molecules and promoting the separation of photogenerated charges. Au nanoclusters (Au NCs) modified BiOBr nanosheets catalyst with highly exposed Au active sites showed excellent photocatalytic activity and nearly double increase in the rate of CO emission.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Shihao Jia, Bin Wang, Jinyuan Liu, Gaopeng Liu, Xingwang Zhu, Huimin Han, Qi Tang, Yingjie Hua, Chongtai Wang, Huaming Li
Summary: The article discusses the development of sunlight as a driving force for purifying the marine environment and the experimental results and analysis of the photocatalytic performance of normalized peony flower-like BOC catalyst in degrading organic pollutants in seawater.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Multidisciplinary
Zhou Zhou, Yihan Yang, Lang Hu, Ganghua Zhou, Yu Xia, Qingsong Hu, Weiqin Yin, Xingwang Zhu, Jianjian Yi, Xiaozhi Wang
Summary: This study presents a facile wet-chemical method for synthesizing metastable orthorhombic phase CoSe2 (o-CoSe2) and stable cubic phase CoSe2 (c-CoSe2). The phase-dependent hydrogen evolution performance of CoSe2 in photo- and electrocatalysis is demonstrated. The results show that o-CoSe2 exhibits better electrocatalytic performance while c-CoSe2 shows higher photocatalytic hydrogen evolution rate. The study provides insights into the relationship between phase structure and hydrogen evolution catalysis.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Chemistry, Physical
Jinman Yang, Liquan Jing, Xingwang Zhu, Wei Zhang, Jiujun Deng, Yuanbin She, Kaiqi Nie, Yuechang Wei, Huaming Li, Hui Xu
Summary: This study successfully synthesized O-modified polymeric carbon nitrogen and demonstrated its excellent performance in CO2 photoreduction. The introduction of O atoms changed the electronic structure of polymeric carbon nitrogen, promoting the adsorption and activation of CO2 and improving the separation and migration efficiency of carriers.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Ganghua Zhou, Zhou Zhou, Yu Xia, Weiqin Yin, Jianhua Hou, Xingwang Zhu, Jianjian Yi, Shengsen Wang, Xin Ning, Xiaozhi Wang
Summary: In this work, a low-cost and high-efficiency photocatalyst was synthesized through one-pot hydrothermal method. The photocatalytic activities of the synthesized NiS-loaded S-doped carbon nitride photocatalysts were evaluated. The optimal photocatalyst showed outstanding performance in organic dye degradation and hydrogen production under visible-light irradiation. The improved photocatalytic activity was attributed to the expanded light absorption and facilitated charge carrier separation or transportation under the synergistic effect of S doping and NiS loading.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Yi Zhang, Jun Di, Xingwang Zhu, Mengxia Ji, Chao Chen, Yanan Liu, Lina Li, Tiange Wei, Huaming Li, Jiexiang Xia
Summary: This study designs oxygen-vacancy-rich Bi2Sn2O7 (BSO) and Bi-O vacancy pairs on ultrathin BiOBr (BOB) to construct a chemical bonding interface, forming a Bi2Sn2O7/BiOBr (BSOB) S-scheme heterojunction. BSOB exhibits efficient photocatalytic nitrogen reduction performance.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Tongming Su, Xingwang Zhu
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)
