Article
Chemistry, Physical
Zhipeng Yu, Chaowei Si, Alec P. LaGrow, Zhixin Tai, Wolfgang A. Caliebe, Akhil Tayal, Maria J. Sampaio, Juliana P. S. Sousa, Isilda Amorim, Ana Araujo, Lijian Meng, Joaquim L. Faria, Junyuan Xu, Bo Li, Lifeng Liu
Summary: This study reports a bimetallic iridium-iron diatomic catalyst (IrFe-N-C) that exhibits excellent performance in oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) and is used in zinc-air batteries.
Article
Chemistry, Physical
Zeming Lu, Hang Zhou, Bin Qian, Shun Wang, Yifeng Zheng, Lin Ge, Han Chen
Summary: In this study, A-site Y and B-site Fe co-doped La0.85Y0.15-Ni0.7Fe0.3O3 perovskite catalyst was prepared and evaluated for zinc-air batteries. The co-doping significantly improved the oxygen reduction and oxygen evolution reactions of LaNiO3. The La0.85Y0.15Ni0.7Fe0.3O3 catalyst exhibited high performance and stability, making it a promising bifunctional air electrode catalyst for zinc-air batteries.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Green & Sustainable Science & Technology
Pengyue Shan, Xue Bai, Qi Jiang, Yunjian Chen, Sen Lu, Pei Song, Zepeng Jia, Taiyang Xiao, Yang Han, Yazhou Wang, Tong Liu, Hong Cui, Rong Feng, Qin Kang, Zhiyong Liang, Hongkuan Yuan
Summary: In this study, bifunctional catalysts with good performance in oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) were designed and screened using machine learning and density functional theory. A series of efficient monofunctional and bifunctional electro-catalysts were successfully predicted with high accuracy, greatly increasing the speed of catalyst screening.
Review
Chemistry, Multidisciplinary
Haiyang Chang, Shanshan Cong, Lei Wang, Cheng Wang
Summary: Zinc-air batteries have great potential in the field of power batteries, and alternative non-precious metal catalysts are crucial for their development. Recent progress in transition metal-based electrocatalysts and hybrid electrochemical storage technologies provide new insights into improving the efficiency of zinc-air batteries. The challenges and research trends for future development are also discussed.
Article
Chemistry, Physical
Shu-Long Li, Qi Li, Yutao Chen, Yong Zhao, Li-Yong Gan
Summary: Noble metals are efficient for ORR and OER, but their scarcity and high price limit commercial applications. This study screened 26 TM-GY as potential SACs for ORR/OER, revealing candidates like Fe, Ir, Co, Rh, Cu, Ni, Pd and Pt-GY, with Co-GY as the optimal bifunctional SAC.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Getachew Solomon, Mojtaba Gilzad Kohan, Mikhail Vagin, Federica Rigoni, Raffaello Mazzaro, Marta Maria Natile, Shujie You, Vittorio Morandi, Isabella Concina, Alberto Vomiero
Summary: In this study, Ag-decorated vertically aligned MoS2 nanoflakes were developed via magnetron co-sputtering and exhibited excellent electrocatalytic performance towards OER and ORR. The presence of silver promoted the adsorption of hydroxyl radicals, reduced the activation energy, and increased the electrochemical activity.
Article
Engineering, Environmental
Omeshwari Yadorao Bisen, Ashok Kumar Yadav, B. Pavithra, Karuna Kar Nanda
Summary: This article introduces a cost-effective and high-performance electrocatalyst, namely carbon-nitrogen coordinated Fe-Mo double atom catalyst. The catalyst has high atom utilization efficiency and enhances the activity of both ORR and OER. Compared with other catalysts, this double atom catalyst exhibits better mass activity in ORR and OER and shows enhanced overall oxygen electrochemistry at higher temperatures.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Yue Zhang, Chengxu Zhang, Yunjie Mei, Thiquynhxuan Le, Haodong Shao, Hao Jiang, Yuebin Feng, Jue Hu
Summary: Ni-Fe layered double hydroxide (NiFe-LDH) has been demonstrated as an efficient bifunctional catalyst for the electrochemical preparation of hydrogen peroxide (H2O2). It exhibits excellent electrocatalytic properties for the oxygen reduction reaction (2e- ORR) and oxygen evolution reaction (OER), resulting in high faraday efficiency and stability. The designed reactor allows for the portable production of H2O2 with low cell voltage.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Ren He, Linlin Yang, Yu Zhang, Daochuan Jiang, Seungho Lee, Sharona Horta, Zhifu Liang, Xuan Lu, Ahmad Ostovari Moghaddam, Junshan Li, Maria Ibanez, Ying Xu, Yingtang Zhou, Andreu Cabot
Summary: In this study, FeCoNiMoW HEA nanoparticles with high configurational entropy, subtle lattice distortions, and modulated electronic structure were successfully synthesized using a solution-based low-temperature approach. These nanoparticles exhibited superior catalytic performance for oxygen evolution and reduction reactions and were utilized in high-performance aqueous zinc-air batteries.
ADVANCED MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Lingxing Zan, Hatem M. A. Amin, Ehab Mostafa, Abdelaziz A. Abd-El-Latif, Shahid Iqbal, Helmut Baltruschat
Summary: In this study, binder-and carbon-free Co-decorated Ag catalytic nanosheets were synthesized via a simple electrodeposition approach, showing high activity for oxygen reduction reaction and oxygen evolution reaction. The morphology, composition, and structure of the material were characterized using various techniques, and the growth mechanism was investigated. These findings provide insights into the design of efficient oxygen electrocatalysts.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Liang Gao, Shengming Chang, Zhongyi Zhang
Summary: The novel composite catalyst CoFeP@C with highly efficient bifunctional performance for catalyzing OER and ORR is ideal for rechargeable Zn-air batteries. The liquid Zn-air battery shows a large power density and stable charge and discharge cycles, while the solid-state Zn-air battery demonstrates stable operation for a duration of time. This work has advanced the understanding of synergistic catalysis and paved the way for high-performance bifunctional catalysts.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Biochemistry & Molecular Biology
Caige Wang, Tao Wang, Qian Liu, Wei Jia, Xiaofeng Han, Dongling Wu
Summary: A novel porous carbon microspheres (CMS2) modified by NiCo2O4 nanoflower (CMS2-NiCo2O4) were prepared as an ORR and OER catalyst. The efficient oxygen catalytic activity is gained by creating a coupling interface between NiCo2O4 and CMS. The optimized CMS2-NiCo2O4 shows excellent performance in zinc-air batteries.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Nanoscience & Nanotechnology
Xinhui Cao, Yiting Gao, Zihe Wang, Huanzhi Zeng, Yifei Song, Shanguang Tang, Liuxiong Luo, Shen Gong
Summary: The article introduces an efficient and stable bifunctional oxygen catalyst, which has important applications in rechargeable zinc-air batteries. A cost-effective process is used to successfully coat high-entropy alloy Fe12Ni23Cr10Co55-x Mn x nanoparticles on carbon nanotubes. The catalyst Fe12Ni23Cr10Co30Mn25/CNT exhibits excellent bifunctional oxygen catalytic performance in 0.1 M KOH solution, with a bifunctional oxygen overpotential of only 0.7 V, surpassing most catalysts reported so far. Moreover, the air electrode assembled with this catalyst shows high specific capacity and energy density in a liquid zinc-air battery, with long-term cycle stability over 256 h.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Jiankang Liu, Tingting Zhang, Feng Ji, Zhongyi Liu, Zhiyuan Wang
Summary: In this study, a series of perovskite electrocatalysts with different deficiencies were synthesized and their catalytic activities for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in alkaline electrolytes were studied. It was found that there are two distinct oxygen reduction potential regions and the catalyst with the highest deficiency showed the highest activity. This work provides guidance for the further development of easily prepared and highly active perovskite metal oxides.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Haiyang Chang, Zhijian Liang, Kun Lang, Jiahui Fan, Lei Ji, Kejian Yang, Shaolin Lu, Zetong Ma, Lei Wang, Cheng Wang
Summary: Electrocatalytic water splitting is crucial for efficient energy conversion from electrical to hydrogen energy. In this study, CNT composites modified with CoP-V4P3 composites were synthesized and shown to have excellent electrocatalytic activity in both hydrogen evolution and oxygen evolution reactions. The unique electronic and hollow carbon nanotube structure of the catalyst effectively increased the catalytic active sites and stability. This work provides guidance for the design and synthesis of high-performance non-precious metal electrocatalysts and promotes the commercial application of electrochemical water splitting.
Article
Nanoscience & Nanotechnology
Yingshuang Xu, Yumeng Fo, Honghao Lv, Xuejing Cui, Guangbo Liu, Xin Zhou, Luhua Jiang
Summary: In this study, defect-rich doped 1T/2H-MoSe2 nanosheets were prepared using a facile Anderson-type polyoxometalate-assisted synthesis route, and their superior performances in the hydrogen evolution reaction (HER) and magnesium (Mg)/seawater battery were demonstrated. The improved catalytic activity and abundant active sites contributed to the enhanced performance of the heteroatom-doped MoSe2 nanosheets.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Electrochemistry
Qianfeng Liu, Wu Qin, Zhao Yan, Jianxin Gao, Erdong Wang
Summary: The mechanism of hydrogen evolution reaction (HER) in phosphate buffer solution (PBS) remains unclear, but a new Ni(OH)(2) permselective membrane covered Pt and Ni electrode revealed that phosphate is the reactant for Pt and Ni electrodes in PBS, competing with H2O and accelerating the reaction for Pt electrode while poisoning Ni electrode.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
Qianfeng Liu, Zhao Yan, Jianxin Gao, Erdong Wang
Summary: The composition of alloy-based electrocatalysts plays a key role in optimizing their electroactivity for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). This study investigates the electrocatalytic properties of FeCoNi-based alloys with varying compositions. The results show that alloys with low iron content exhibit higher HER activity, while alloys with low cobalt content exhibit higher OER activity. The addition of iron and cobalt increases the electrochemical specific area, leading to improved HER activity and stability. Surface hydroxides enhance the HER activity of most compositions, but have little effect on OER activity.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Ziheng Jing, Zhao Yan, Xueliang Wang, Ruxin Che, Erdong Wang
Summary: Zinc/air batteries have attracted extensive attention due to their low cost, high safety, and high energy density. This paper focuses on the water exchange issue in zinc/air batteries and prepares a high relative-humidity water-vapor-resistant membrane to reduce water exchange and improve battery performance.
Article
Chemistry, Physical
Teng Yang, Honghao Lv, Qinghao Quan, Xiaolei Li, Huasen Lu, Xuejing Cui, Guangbo Liu, Luhua Jiang
Summary: A rational design of rare earth element Er-doped MoO2 (Er-MoO2) with modulated electronic structure is reported, leading to boosted water splitting activity in both alkaline and seawater electrolyte. The optimized Er-MoO2 requires overpotentials of only 94/221 mV and 173/312 mV to deliver the 10 mA cm-2 for HER/OER in alkaline and seawater electrolyte, respectively. Moreover, a Mg/seawater battery coupled with the Er-MoO2 cathode achieves a maximum power density of 8.17 mW cm-2, combining with an excellent discharging stability for at least 24 h.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Jing Liu, Boyang Zhang, Yumeng Fo, Wanqing Yu, Jie Gao, Xuejing Cui, Xin Zhou, Luhua Jiang
Summary: This study reports the synthesis of a nickel-gold nanodimer (Ni100Au1/C-P) via galvanic replacement reaction, which mostly transforms into highly dilute gold-in-nickel host nanoalloys (Ni100Au1/C-EA) via electrochemical activation. The Ni100Au1/C-EA exhibits remarkable activity and stability for the alkaline hydrogen oxidation reaction (HOR).
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Huimin Chen, Min Wang, Kaicai Fan, Linghui Kong, Honghao Lv, Wenzhen Li, Guangbo Liu, Luhua Jiang
Summary: This study presents an efficient aqueous-phase Mg-CO2 battery by designing a highly selective Ni NPs/Ni-N-C SACs catalyst and optimizing the electrolyte. The battery not only generates electricity, but also produces syngas and high-valued MgHPO4 phosphate. The operation parameters can regulate the electricity output, the CO/H2 ratio in syngas, and the yields/crystalline quality of MgHPO4.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Engineering, Environmental
Liu Jing, Gao Jie, Wanqing Yu, Huanwei Ren, Xuejing Cui, Xin Chen, Luhua Jiang
Summary: In this study, a highly active and stable electrocatalyst Ru-TiO/TiO2@NC is developed for hydrogen oxidation and evolution reactions. The catalyst exhibits exceptional activity and stability, outperforming the traditional Pt/C catalyst. The unique sandwich structure and optimized interaction between Ru and TiO/TiO2 contribute to the enhanced performance of this Ru-based catalyst.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Yan Zhao, Shixu Song, Jing Liu, Xuejing Cui, Luhua Jiang
Summary: In this study, black liquor-derived carbon was functionalized and used as an efficient electrocatalyst for hydrogen peroxide production. The functionalized C3-O3-B10 showed high activity, satisfactory selectivity, and good stability. Mechanism investigations revealed the favorable catalytic properties of C3-O3-B10, making it a reliable and sustainable electrocatalyst for hydrogen peroxide production.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Qianfeng Liu, Zhao Yan, Jianxin Gao, Hefei Fan, Min Li, Erdong Wang
Summary: By growing a Ni(OH)2 membrane with nanometer-scale cracks on the direct seawater HER electrode, the precipitation of hydroxide-based compounds can be effectively suppressed while maintaining the mass transfer of HER, resulting in improved activity and stability of the electrode. This work is of great significance for solving the precipitation issue of HER electrodes in seawater.
Article
Chemistry, Multidisciplinary
Qianfeng Liu, Zhao Yan, Jianxin Gao, Hefei Fan, Min Li, Erdong Wang
Summary: This study presents a potential strategy to reduce hydroxide-based precipitation on the electrode surface in seawater electrolysis. A positively charged Ni(OH)2 nanofiltration membrane is grown on a nickel foam electrode, hindering the transfer of Mg2+ ions and significantly reducing precipitation. The electrode exhibits high stability and activity.
Article
Chemistry, Physical
Jing Liu, Jie Wang, Linjuan Zhang, Chaohua Fan, Xin Zhou, Bingsen Zhang, Xuejing Cui, Jianqiang Wang, Yi Cheng, Shuhui Sun, Luhua Jiang
Summary: Developing active, stable, and phosphate anion resistant catalysts is crucial for high-temperature proton exchange membrane fuel cells. A five-coordinated iron catalyst with optimized charge redistribution is designed, which weakens phosphate anion adsorption, promotes oxygen molecule dissociation, and exhibits excellent phosphate anion tolerance and ORR activity.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Inorganic & Nuclear
Jie Gao, Zhongyin Sun, Jie Wang, Chaohua Fan, Xuejing Cui, Jing Liu, Luhua Jiang
Summary: In this study, a three-dimensional interconnected graphene enveloped titanium dioxide flower (TiO2@RGO) was fabricated as a robust support for the oxygen reduction reaction (ORR). The TiO2@RGO composite exhibited a large surface area and superior electrical conductivity, providing an efficient electron highway for reactant transport. With the loading of Pt nanoparticles, the Pt-TiO2@RGO catalyst showed comparable catalytic activity and superior stability, suggesting its potential as a robust catalyst support for proton exchange membrane fuel cells (PEMFCs).
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Physical
Jiabiao Yan, Jing Zhu, Dawei Chen, Shuai Liu, Xu Zhang, Shoushan Yu, Zhenhua Zeng, Luhua Jiang, Fanglin Du
Summary: This study explores the effect of the electronegativity of A-site atoms on the lattice structure of the active site and the activity-stability of catalysts. It was found that higher electronegativity can enhance the catalytic activity and improve the long-term stability of the catalyst in acidic media.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Zunhang Lv, Kaihang Wang, Yingying Si, Zihan Li, Tianpeng Yu, Xin Liu, Guixue Wang, Guangwen Xie, Luhua Jiang
Summary: By judiciously engineering the electrocatalysts, the researchers successfully designed a Co-P/Ni-Fe-P/NF electrode with excellent electrocatalytic activity for hydrogen evolution reaction in alkaline medium. The electrode exhibited a low overpotential of 43.4 mV at 10 mA cm-2 and demonstrated long-term stability for 72 hours. This innovative work may contribute to further development of commercial electrocatalysts.
GREEN ENERGY & ENVIRONMENT
(2022)
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)