Article
Chemistry, Physical
Anuj Kumar, Dipak Kumar Das, Vinod Kumar Vashistha, Shumaila Ibraheem, Ghulam Yasin, Sonali Gautam, Vivek Sharma
Summary: A nanocomposite (g-[Co2N8]) with excellent ORR performance was synthesized by coordinating CoN4 macrocyclic moieties on the graphene surface, outperforming 20% Pt/C catalyst and showing good stability. This work provides insights for designing multi-metallic coordination polymers for energy-related electrocatalysis involving different metal ions in N-4-arrangement.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Electrochemistry
Shiming Zhang, Menghui Chen, Xiao Zhao, Jialin Cai, Wei Yan, Joey Chung Yen, Shengli Chen, Yan Yu, Jiujun Zhang
Summary: This review provides a comprehensive overview and in-depth analysis of recent progress in noncarbon materials for ORR electrocatalysts, discussing their advantages and drawbacks, as well as proposing strategies to enhance electrocatalytic performance.
ELECTROCHEMICAL ENERGY REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Satyanarayana Samireddi, V Aishwarya, Indrajit Shown, Saravanakumar Muthusamy, Sreekuttan M. Unni, Ken-Tsung Wong, Kuei-Hsien Chen, Li-Chyong Chen
Summary: A heterobimetallic corrole complex containing Co and Fe was successfully synthesized and used to prepare a dual-atom molecular catalyst through low-temperature pyrolysis, showing impressive ORR performance and stability. The catalyst exhibited a high power density in proton exchange membrane fuel cells, close to that of most metal-N4 catalysts.
Review
Chemistry, Physical
Shengnan Li, Shih-Hsin Ho, Tao Hua, Qixing Zhou, Fengxiang Li, Jingchun Tang
Summary: Microbial fuel cells (MFCs) as a novel wastewater treatment that generates electricity has received significant attention, but the low activity of the oxygen reduction reaction (ORR) remains a critical bottleneck. Biochar has been considered as a promising ORR electrocatalyst, with further research needed to improve its economic practicality. The review covers the ORR mechanism, essential requirements of ORR catalysts in MFC applications, material selection, properties, preparation of biochar electrocatalysts, and specific applications in MFCs, highlighting challenges and future research directions.
GREEN ENERGY & ENVIRONMENT
(2021)
Review
Chemistry, Multidisciplinary
Fei Xiao, Yu-Cheng Wang, Zhi-Peng Wu, Guangyu Chen, Fei Yang, Shangqian Zhu, Kumar Siddharth, Zhijie Kong, Aolin Lu, Jin-Cheng Li, Chuan-Jian Zhong, Zhi-You Zhou, Minhua Shao
Summary: The article summarizes the current development status of PEMFCs and AMFCs, including electrocatalyst design, catalyst layer optimization, and cell performance. It discusses and compares the activity, stability, and fuel cell performance of different types of electrocatalysts for the oxygen reduction and hydrogen oxidation reactions, while also exploring research directions for further development.
ADVANCED MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Shahid Zaman, Lei Huang, Abdoulkader Ibro Douka, Huan Yang, Bo You, Bao Yu Xia
Summary: Fuel cells show great potential as a renewable energy technology, but face challenges due to high cost and poor reliability of cathodic electrocatalysts for the oxygen reduction reaction (ORR). This review emphasizes recent progress of ORR electrocatalysts in fuel cells and highlights issues with activity translation from laboratory testing to practical applications. Future efforts should focus on large-scale preparation, unified assessment criteria, advanced interpretation techniques, advanced simulation and artificial intelligence to advance efficient ORR electrocatalysts in fuel cells.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Yuanyuan Zheng, Amanda Schramm Petersen, Hao Wan, Rene Huebner, Jiangwei Zhang, Jianlan Wang, Haoyuan Qi, Yuhong Ye, Chaolun Liang, Jing Yang, Zhiming Cui, Yuezhong Meng, Zhikun Zheng, Jan Rossmeisl, Wei Liu
Summary: A scalable, controllable, and general strategy to prepare Pt-based oxygen reduction reaction (ORR) electrocatalysts with excellent performance and stability was demonstrated. The Pt83Ni17 bunched-nanocages aerogels (BNCs AG) showed significantly enhanced ORR activity and durability compared to Pt/C, with mass activity (MA) of 1.95 A mg(Pt)(-1) and MA retention of 82.6% after a 20,000-cycles accelerated durability test. The optimized ligand and strain effects, as well as the appropriate porosity, contributed to the excellent activity and durability of the Pt83Ni17 BNCs AG.
ADVANCED ENERGY MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Pranav K. Gangadharan, Vidyanand Vijayakumar, Shijil A. Nediyirakkal, Roshni Tresa Fernandez, Adhrika Siddharthan, Sreekumar Kurungot
Summary: A high-performance electrocatalyst Pt/3DNG for PEMFC applications has been developed by grafting an active triple-phase boundary on the 3DNG support material to precisely control the formation of the proton conducting ionomer interface at the active sites. Introducing the concept of in situ generation of the proton conducting-ionomer based active triple-phase boundary during electrode fabrication could potentially replace the conventional method of using Nafion ionomer for electrode preparation.
ADVANCED SUSTAINABLE SYSTEMS
(2021)
Review
Energy & Fuels
Maryam Jafari, Mohammad Javad Parnian, Hussein Gharibi, Zibin Liang, Ruqiang Zou
Summary: This review article focuses on the clarification of the synthesis-structure-activity correlations of ORR electrocatalysts for fuel cell applications. It discusses the classification of different MOF precursors and their final desirable electrocatalysts after the pyrolysis process. The investigation includes ORR performance and fuel cell performances of various MOF-derived materials, providing readers with a deeper understanding of nonprecious MOF-derived catalysts in the emerging field.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
L. Bouleau, S. Perez-Rodriguez, J. Quilez-Bermejo, M. T. Izquierdo, F. Xu, V. Fierro, A. Celzard
Summary: This study investigates the ORR performance of porous carbon materials and optimizes different key factors. The results indicate that individual optimization of experimental conditions should be conducted for each material, and important benchmarks for evaluating the catalytic activity of carbon-based catalysts in ORR are provided.
Article
Engineering, Environmental
Amit Chaturvedi, Patit Paban Kundu
Summary: Microbial fuel cell technology utilizes organic substrates and oxygen to generate power, with the performance relying on the catalysts used for the oxygen reduction reaction. Various types of catalysts, including electrocatalysts, photo-electrocatalysts, and biocatalysts, have been evaluated for their electrochemical properties, catalytic effectiveness, stability, and power generation in MFCs.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Ya Yan, Jun-Ye Zhang, Xue-Rong Shi, Yuting Zhu, Chenfeng Xia, Shahid Zaman, Xun Hu, Xianying Wang, Bao Yu Xia
Summary: This study introduces an efficient trifunctional electrocatalyst based on zeolitic-imidazole frameworks for hydrazine oxidation, oxygen, and hydrogen peroxide reduction. The electrocatalyst exhibits outstanding performance and presents a novel diffusion philosophy for liquid electrochemical cells.
Article
Chemistry, Physical
Cheng Bai, Yong Wu, Yuci Xin, Junfeng Mou, Lei Xia, Ding Ding, Xingqun Zheng, Peng Yu
Summary: By introducing alkali metal ions (Li/Na/K) into CuxS (x = 1 or 2), the oxygen evolution reaction (OER) performance of copper sulfides can be greatly enhanced. The doping of alkali metal ions increases electrical conductivity and optimizes the adsorption energy of oxygenated intermediates, resulting in improved OER performance. NaCu5S3 exhibits the most optimal overpotential of 271 mV @ 20 mA cm(-2), significantly higher than Cu2S, CuS, and most other copper sulfides. Therefore, the doping strategy of alkali metal ions shows important and promising effects on the design of efficient copper sulfide electrocatalysts.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Mingyang Liu, Xudong Xiao, Qi Li, Laiyu Luo, Minghui Ding, Bin Zhang, Yuxin Li, Jinlong Zou, Baojiang Jiang
Summary: The review explores the reaction mechanisms and theoretical calculations of ORR in acidic and alkaline media, as well as tracking the latest reports and challenges in ORR electrocatalysis. It presents the latest advances in the development of ORR electrocatalysts, and speculates on the development prospects and challenges of ORR electrocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Jong Seon Park, Hyung Jong Choi, Gwon Deok Han, Junmo Koo, Eun Heui Kang, Dong Hwan Kim, Kiho Bae, Joon Hyung Shim
Summary: This study demonstrates the enhanced performance of protonic ceramic fuel cells (PCFCs) by adding palladium (Pd) interlayers, which successfully integrated between the BZCYYb and PBSCF layers with great long-term stability. The presence of Pd significantly improved current collection and reduced polarization impedance at the cathode-electrolyte interface, especially at low temperatures, promising for high-performance and robust PCFCs.
JOURNAL OF POWER SOURCES
(2021)