Efficient overall water splitting catalyzed by robust FeNi3N nanoparticles with hollow interiors

doi:10.1039/d1ta01014j

	Efficient overall water splitting catalyzed by robust FeNi3N nanoparticles with hollow interiors
	Liu, Zong 1; Liu, Danye 2,3; Zhao, Linyu 1; Tian, Jingqi 1; Yang, Jun 2,3,4; Feng, Ligang 1
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2021-03-28
卷号	9 期号:12 页码:7750-7758
ISSN号	2050-7488
DOI	10.1039/d1ta01014j
英文摘要	The structure and morphology tuning of nitrides is urgently desired to boost their intrinsic activity for electrochemical reactions. Herein, we demonstrate hollow structured FeNi3N nanoparticles with largely improved intrinsic activity synthesized via combining facile oxygen-etching with thermal nitridation as efficient bifunctional catalysts for overall water splitting. Facile structure and morphology tuning is realized without involving a conductive support or complicated fabrication procedures, and this catalyst shows many good catalytic characteristics including high catalytic activity, excellent stability, and accelerated catalytic kinetics. To our delight, this facile approach endows FeNi3N nanoparticles with largely improved activity for the oxygen evolution reaction (OER) and meanwhile without performance loss for the hydrogen evolution reaction (HER). In specific, overpotentials required for 10 mA cm(-2) are only 185 and 210 mV for the HER and OER, respectively, much lower than those of bulk FeNi3N (235 and 280 mV @ 10 mA cm(-2) for the HER and OER), accompanying appreciated long-term stability. A low cell voltage of 1.63 V is realized in water electrolysis to offer a current density of 10 mA cm(-2), about 130 mV lower compared to that of a bulk state FeNi3N catalyst. The structural evolution of metal (oxy)hydroxide is observed from the in situ Raman spectrum, and the significance of metal (oxy)hydroxides is revealed for both the electrodes of the HER and OER. The promotion effect compared with pristine FeNi3 and bulk FeNi3N is studied with the help of thorough physical characterization and electrochemical measurements. The largely improved performance is affirmatively attributed to the metallic characteristic FeNi3N phases, high active site exposure, and boosted intrinsic activity. The current findings are helpful for designing subsequent transition metal-based catalysts applied for the water electrolysis technique.
资助项目	National Natural Science Foundation of China[21972124] ; National Natural Science Foundation of China[22075290] ; Beijing Natural Science Foundation[Z200012] ; Priority Academic Program Development of Jiangsu Higher Education Institution ; Nanjing IPE Institute of Green Manufacturing Industry ; Six Talent Peaks Project of Jiangsu Province[XCL-070-2018] ; Foundation of Excellent Doctoral Dissertation of Yangzhou University
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000635284900038
资助机构	National Natural Science Foundation of China ; Beijing Natural Science Foundation ; Priority Academic Program Development of Jiangsu Higher Education Institution ; Nanjing IPE Institute of Green Manufacturing Industry ; Six Talent Peaks Project of Jiangsu Province ; Foundation of Excellent Doctoral Dissertation of Yangzhou University
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/48294]
专题	中国科学院过程工程研究所
通讯作者	Tian, Jingqi; Yang, Jun; Feng, Ligang
作者单位	1.Yangzhou Univ, Sch Chem & Chem Engn, Yangzhou 225002, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Nanjing IPE Inst Green Mfg Ind, Nanjing 211100, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Liu, Zong,Liu, Danye,Zhao, Linyu,et al. Efficient overall water splitting catalyzed by robust FeNi3N nanoparticles with hollow interiors[J]. JOURNAL OF MATERIALS CHEMISTRY A,2021,9(12):7750-7758.
APA	Liu, Zong,Liu, Danye,Zhao, Linyu,Tian, Jingqi,Yang, Jun,&Feng, Ligang.(2021).Efficient overall water splitting catalyzed by robust FeNi3N nanoparticles with hollow interiors.JOURNAL OF MATERIALS CHEMISTRY A,9(12),7750-7758.
MLA	Liu, Zong,et al."Efficient overall water splitting catalyzed by robust FeNi3N nanoparticles with hollow interiors".JOURNAL OF MATERIALS CHEMISTRY A 9.12(2021):7750-7758.