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
Chemistry, Physical
Shihong Chen, Haowen Ren, Yang Qiu, Chunhui Luo, Qiang Zhao, Wei Yang
Summary: In this study, a flower-like porous carbon material was designed to synthesize Co/Zn/Mn@NC, which showed excellent bifunctional catalytic activity with a half-wave potential of 0.86 V for oxygen reduction reaction (ORR) and an overpotential of 360 mV for oxygen evolution reaction (OER) at 10 mA/cm2. The Zn-Air battery (ZAB) with Co/Zn/Mn@NC-800 exhibited a higher power density of 163 mW/cm2 and a specific capacity of 832 mA h/gZn compared to Pt/C + RuO2. Moreover, the Co/Zn/Mn@NC-800-based ZAB showed superior long-term stability with only a 0.3% decline in efficiency after 534 cycles (>150 h). These results suggest that the synthesized Co/Zn/Mn@NC catalyst has great potential for practical application in ZABs.
JOURNAL OF POWER SOURCES
(2023)
Article
Nanoscience & Nanotechnology
Yan Zhang, Xiaoyue Ma, Kai Zhu, Jingwen Wang, Zhendong Cheng, Ge Li, Lin Yang, Zhengyu Bai
Summary: The rational design of multiphasic interfaces is an efficient way to fabricate favorable catalysts for bifunctional oxygen reduction and oxygen evolution reactions. In this study, a hybrid metallic nanoparticles consisting of Co, CoO, and Ce-doped WO3 were anchored on the external surface of preprepared catalysts by pyrolyzing a polyoxometalate-containing metal-organic framework precursor. The resulting catalyst exhibited excellent catalytic performance for both ORR and OER, with a small potential gap between the two reactions.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Sangwoo Kim, Ji-Won Jung, DongHoon Song, Su-Ho Cho, Jiyeon Kim, Jun Kyu Kim, DongHwan Oh, Hainan Sun, EunAe Cho, Il-Doo Kim, WooChul Jung
Summary: The lack of bifunctional features of perovskite oxide for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) limits its use as a cathode catalyst for rechargeable Zn-air batteries (ZABs). In this study, cobalt-based nanoparticle decorated Sr0.95Nb0.1Co0.7Fe0.2O3-delta (S0.95NCF) is presented as a novel air-electrode catalyst, achieving significantly enhanced activity for OER and ORR. The newly designed catalyst also exhibits remarkable charge/discharge durability, making it a promising candidate for ZABs cathode.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Meiling Fan, Peipei Liu, Yapeng Cheng, Haolin Tang, Bing Jin, Haining Zhang
Summary: In this work, catalyst with simultaneously engineered Fe-N4 and Co-N4 active sites and graphitic carbon multilayer-encapsulated FeCo alloy is developed, showing promising catalytic activity and good stability for both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER).
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Peng Rao, Yalin Liu, Ya-Qiong Su, Mingjun Zhong, Kun Zhang, Junming Luo, Jing Li, Chunman Jia, Yijun Shen, Chong Shen, Xinlong Tian
Summary: This study developed a unique 3D core-shell nanostructure bifunctional oxygen catalyst with excellent electrocatalytic performance and stability, showing promising applications in metal-air batteries.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Physics, Multidisciplinary
Jing Zhang, Zixiang Cui, Jie Liu, Chunjie Li, Haoyi Tan, Guangcun Shan, Ruguang Ma
Summary: Oxygen electrocatalysts play a crucial role in the air electrode of zinc-air batteries. Two-dimensional materials have been extensively studied as oxygen electrocatalysts due to their large surface area, high electrical conductivity, and ease of modification. Modified 2D materials-based electrocatalysts have shown excellent performance in the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), attracting significant interest from researchers worldwide.
FRONTIERS OF PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Minghua Wang, Changbao Wang, Jiameng Liu, Feilong Rong, Linghao He, Yafei Lou, Zhihong Zhang, Miao Du
Summary: A simple encapsulation approach was used to synthesize the Ag/Ag2O@MCOF(Co) catalyst, which exhibited superior performance in oxygen reduction and oxygen evolution reactions. The catalyst also showed promising results as an air electrode in a primary zinc-air battery.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Energy & Fuels
Ankita Mathur, Sonu Kumari, Arkaj Singh, Rahul Mitra, Ravinder Sharma, Krishanu Biswas, Aditi Halder
Summary: This study investigates the co-doping effect of Fe and Ni in the delta-MnO2 lattice. The results show that the synergy between Fe and Ni significantly enhances the overall electrocatalytic properties of delta-MnO2, leading to improved performance in a practical Zn-air battery.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Engineering, Chemical
Yajun Mi, Wei Wang, Yaxin Hao, Yumao Kang, Sarah Imhanria, Ziqiang Lei
Summary: In this study, a hybrid material FeNC-CoS2 was developed as a bifunctional oxygen electrocatalyst, displaying excellent catalytic activity and durability. The assembled rechargeable zinc-air battery using this catalyst showed remarkable performance, indicating potential for future applications in clean energy conversion systems.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Chemistry, Physical
Li Xu, Suqin Wu, Daijie Deng, Can Wang, Junchao Qian, Guifen Lu, Henan Li
Summary: The study successfully enhanced the performance of oxygen reduction reaction and zinc-air batteries by synthesizing Fe, Co co-doped tungsten carbide/nitrogen-doped carbon catalyst.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Electrochemistry
Kangdi Lin, Zihao Zhou, Chenting Peng, Jinlian Zhang, Hongyun Huang, Meijie Chen, Ming Sun, Lin Yu
Summary: Solid-state zinc-air batteries (ZABs) are a promising choice for next-generation energy storage devices in AI and wearable technology. However, the unsatisfactory catalytic performance and poor contact with electrolytes hinder their effectiveness. This study presents a bifunctional catalyst (oxygen reduction and evolution reactions) composed of NiCo layered double hydroxide@NiCo2S4 with well-designed heterointerfaces, enhancing electronic interaction and optimizing energy-level configuration. The catalyst exhibits fast charge transfer kinetics and enhanced activity, leading to excellent power density of 88.4 mW cm-2 and high round-trip efficiency of 74.3% in solid-state ZABs. This work provides valuable insights into the structure-activity relationship for high-performance ZABs using heterostructure catalysts.
ELECTROCHIMICA ACTA
(2023)
Article
Multidisciplinary Sciences
Ababay Ketema Worku, Delele Worku Ayele, Nigus Gabbiye Habtu, Mehary Dagnew Ambaw
Summary: The application of Ag-doped α-MnO2 nanoparticles as cathode materials for ZABs was investigated, and it was found that they exhibited higher potential and current for ORR compared to α-MnO2. Moreover, the Ag-doped α-MnO2 nanoparticles showed lower charge-transfer resistance and higher electron transfer pathway, making them a promising active ORR electrocatalyst. The homemade ZAB based on Ag-MnO2-7.5 showed excellent performance with high open circuit potential, low ohmic resistances, and high energy density.
Article
Chemistry, Physical
Yugang Qi, Shan Yuan, Lili Cui, Zizhun Wang, Xingquan He, Wei Zhang, Tewodros Asefa
Summary: A highly efficient bifunctional oxygen electrode catalyst for zinc-air batteries has been successfully synthesized in this study, exhibiting superior performance and stability in charge-discharge cycles.
Article
Chemistry, Applied
He-lei Wei, Ai-dong Tan, Shu-zhi Hu, Jin-hua Piao, Zhi-yong Fu
Summary: The developed catalyst composed of spinel iron-cobalt oxide and nitrogen-doped ordered mesoporous carbon showed excellent electrocatalytic performance in metal-air batteries, achieving high energy density, high power density, and superior cycling stability.
CHINESE JOURNAL OF CATALYSIS
(2021)
