南方科技大学知识苑(SUSTech KC): Ni-Alloyed Co<sub>4</sub>N Nanowire Arrays for the Photoassisted Electrochemical Water Oxidation

题名	Ni-Alloyed Co₄N Nanowire Arrays for the Photoassisted Electrochemical Water Oxidation
作者	Long, Chengming 1; Liu, Sirui 1; Wang, Di 1; Lu, Zhaoqi 1; Zhang, Qiulan 1; Gao, Qiong 1; Zhang, Mingyi 1; Ma, Xinzhi 1,2,3
通讯作者	Gao, Qiong; Zhang, Mingyi; Ma, Xinzhi
发表日期	2024-08-01
DOI	10.1021/acsanm.4c03220
发表期刊	ACS APPLIED NANO MATERIALS 影响因子和分区
EISSN	2574-0970
摘要	Photoelectrochemical hydrogen production technology holds promise for directly and swiftly generating green hydrogen, which is pivotal for human welfare; however, it faces challenges posed by the energetically sluggish oxygen evolution reaction (OER). Cobalt-based nitrides are considered excellent photoelectrochemically active in the OER (PEOER) catalysts, and their conductivity and photoconversion efficiency remain relatively low. This paper presents the fabrication of Ni-alloyed Co4N nanowire arrays on carbon cloth ((Co1-xNix)(4)N NWAs/CC) as PEOER catalysts. By analyzing advanced in situ Raman and X-ray photoelectron spectroscopy (XPS) results, we discovered that Ni not only enhances the conductivity of the catalyst but, more importantly, also creates more photoexcited Co2+ OER centers and favors its reconstruction to CoOOH to charge PEOER. Furthermore, nitrogen plays a critical role in transforming pyridinic nitrogen into other forms of nitrogen to stabilize the catalyst's structure. These advantages endow (Co0.74Ni0.26)(4)N NWAs/CC with remarkable PEOER enhancement (988%), which drives the standard current density of 10 mA cm(-2) with only a 283 mV overpotential along with good durability. This research provides insights into the PEOER mechanisms of cobalt-based transition metal nitrides, providing a way for designing next-generation PEOER catalysts.
关键词	cobalt-based nitrides oxygen evolution reaction photoelectrochemical oxygen evolution reaction PEOERcatalysts Ni-alloyed Co4N nanowire arrays
相关链接	[来源记录]
收录类别	SCI ; EI
语种	英语
学校署名	通讯
资助项目	Basic Research Support Program for Excellent Young Teachers in Provincial Undergraduate Universities in Heilongjiang Province[YQJH2023159]
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:001292280100001
出版者	AMER CHEMICAL SOC
来源库	Web of Science
引用统计
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/804695
专题	工学院_计算机科学与工程系
作者单位	1.Harbin Normal Univ, Sch Phys & Elect Engn, Key Lab Photon & Elect Bandgap Mat, Minist Educ, Harbin 150025, Peoples R China 2.Hong Kong Polytech Univ, Res Inst Adv Mfg, Dept Mech Engn, Hong Kong 999077, Peoples R China 3.Southern Univ Sci & Technol, Coll Sci, Shenzhen 518055, Guangdong, Peoples R China
通讯作者单位	南方科技大学
推荐引用方式 GB/T 7714	Long, Chengming,Liu, Sirui,Wang, Di,et al. Ni-Alloyed Co₄N Nanowire Arrays for the Photoassisted Electrochemical Water Oxidation[J]. ACS APPLIED NANO MATERIALS,2024.
APA	Long, Chengming.,Liu, Sirui.,Wang, Di.,Lu, Zhaoqi.,Zhang, Qiulan.,...&Ma, Xinzhi.(2024).Ni-Alloyed Co₄N Nanowire Arrays for the Photoassisted Electrochemical Water Oxidation.ACS APPLIED NANO MATERIALS.
MLA	Long, Chengming,et al."Ni-Alloyed Co₄N Nanowire Arrays for the Photoassisted Electrochemical Water Oxidation".ACS APPLIED NANO MATERIALS (2024).