Rh2S3/N-Doped Carbon Hybrids as pH-Universal Bifunctional Electrocatalysts for Energy-Saving Hydrogen Evolution

doi:10.1002/smtd.202000208

	Rh2S3/N-Doped Carbon Hybrids as pH-Universal Bifunctional Electrocatalysts for Energy-Saving Hydrogen Evolution
	Zhang, Chaoxiong 1,2; Liu, Haoxuan 2; Liu, Yifan 3; Liu, Xijun 2; Mi, Yuying 2; Guo, Ruijie 2; Sun, Jiaqiang 4; Bao, Haihong 2; He, Jia 2; Qiu, Yuan 2
	2020-09-01
发表期刊	Small Methods
卷号	4 期号:9
摘要	Using hydrazine oxidation reaction (HzOR) to replace the oxygen evolution reaction is an effective way to decrease the overpotential of the anodic reaction in overall water splitting (OWS), facilitating cost-effective and safe hydrogen production. Herein, Rh2S3/N-doped carbon hybrids (Rh2S3/NC) are first reported as novel and efficient bifunctional electrocatalysts for hydrazine-assisted hydrogen generation over a wide pH range. Specifically, Rh2S3/NC exhibits low overpotentials for the hydrogen evolution reaction (HER) in alkaline (38 mV), neutral (46 mV), and acidic (21 mV) electrolytes, to reach the current density of 10 mA cm−2, and maintains the activities over 70 h. Meanwhile, Rh2S3/NC also displays competitive HzOR performance at all-pH electrolytes. Thus, serving as a bifunctional electrocatalyst for both HER and HzOR, Rh2S3/NC shows overwhelming-Pt/C performance in three electrolytes, and can save over 93.3%, 85.2%, and 78.3% energy consumption compared to the corresponding OWS system. Moreover, theoretical calculations confirm that Rh2S3/NC owns low free-energy changes of the H adsorption and the dehydrogenation of adsorbed NHNH both of which are beneficial to enhance catalytic activity. This work develops a novel bifunctional electrocatalyst with free pH-dependent condition for the hydrazine-assisted electrolysis system to furtherly reduce the cost of massive industrial H2 production. © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
关键词	Alkalinity Anodic oxidation Carbon Catalyst activity Cost effectiveness Electrocatalysts Electrolytes Energy conservation Energy utilization Free energy Hydrazine Hydrogen evolution reaction Oxygen evolution reaction Rhodium compounds Anodic reactions Bifunctional electrocatalysts Electrolysis systems Free energy change Hydrazine oxidation Hydrogen evolution Hydrogen generations Theoretical calculations
DOI	10.1002/smtd.202000208
收录类别	EI
语种	英语
出版者	John Wiley and Sons Inc, Postfach 10 11 61, 69451 Weinheim, Boschstrabe 12, 69469 Weinheim, Deutschland, 69469, Germany
EI入藏号	20202208770739
EI主题词	Hydrogen production
来源库	Compendex
分类代码	522 Gas Fuels - 525.2 Energy Conservation - 525.3 Energy Utilization - 539.2.1 Protection Methods - 641.1 Thermodynamics - 801.1 Chemistry, General - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 911.2 Industrial Economics
引用统计	被引频次：47[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/115755
专题	省部共建有色金属先进加工与再利用国家重点实验室继续教育学院
作者单位	1.Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming; Yunnan; 650504, China; 2.Center for Electron Microscopy and Tianjin Key Lab of Advanced Functional Porous Materials, Institute for New Energy Materials and Low-Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin; 300384, China; 3.Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen; 518060, China; 4.State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan; Shanxi; 030001, China; 5.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China
第一作者单位	材料科学与工程学院
推荐引用方式 GB/T 7714	Zhang, Chaoxiong,Liu, Haoxuan,Liu, Yifan,et al. Rh2S3/N-Doped Carbon Hybrids as pH-Universal Bifunctional Electrocatalysts for Energy-Saving Hydrogen Evolution[J]. Small Methods,2020,4(9).
APA	Zhang, Chaoxiong.,Liu, Haoxuan.,Liu, Yifan.,Liu, Xijun.,Mi, Yuying.,...&Hu, Guangzhi.(2020).Rh2S3/N-Doped Carbon Hybrids as pH-Universal Bifunctional Electrocatalysts for Energy-Saving Hydrogen Evolution.Small Methods,4(9).
MLA	Zhang, Chaoxiong,et al."Rh2S3/N-Doped Carbon Hybrids as pH-Universal Bifunctional Electrocatalysts for Energy-Saving Hydrogen Evolution".Small Methods 4.9(2020).