Unexpected Redispersion Effect of Au Nanoclusters for Enormous Enhancement of Electrocatalytic Stability and Activity

doi:10.1002/adfm.202209283

	Unexpected Redispersion Effect of Au Nanoclusters for Enormous Enhancement of Electrocatalytic Stability and Activity
	Xiao, Xiang-Yu 1,2,4; Song, Zong-Yin 1,2,4; Xie, Huanyu 5; Zhao, Yong-Huan 1,2,4; Chen, Shi-Hua 1,2,4; Li, Yong-Yu 3; Yang, Meng 1,2,4; Li, Pei-Hua 1,2,4; Ji, Hengxing 5; Huang, Xing-Jiu 1,2,4
刊名	ADVANCED FUNCTIONAL MATERIALS
	2022-10-21
关键词	Au (25) nanoclusters DFT calculations the electrocatalytic reduction of Cr(VI) the sandwich configurations unexpected redispersion effects
ISSN号	1616-301X
DOI	10.1002/adfm.202209283
通讯作者	Yang, Meng(myang@iim.ac.cn) ; Li, Pei-Hua(peihuali@issp.ac.cn) ; Ji, Hengxing(jihengx@ustc.edu.cn) ; Huang, Xing-Jiu(xingjiuhuang@iim.ac.cn)
英文摘要	The irreconcilable conflict between stability and excellent electrocatalytic activity of Au nanoclusters greatly limits their application. Extensive efforts are devoted to fabricating various substrates to immobilize Au nanoclusters while it is still challenging to maintain its electrocatalytic activities for long term tasks due to the highly reactive environments that the Au nanoclusters encounter in electrocatalytic reactions. Herein, an unexpected "redispersion effect" is discovered when Au-25 nanoclusters are loaded on the nanocomposites of black phosphorus and N-doped graphene (AuCs/BP-NG), forming the sandwich configuration with the enhanced stability. The size of Au nanoclusters reduce from 1.56 +/- 0.5 to 1.04 +/- 0.2 nm, leading to improved catalytic ability. Such redispersion effect yields a super-high electrocatalytic performance of the AuCs/BP-NG toward Cr(VI) sensing that the detection sensitivity achieved 0.414 mu A ppb(-1), which is two orders of magnitude higher than the state-of-the-art value. Compared with BP-NG and Au nanoparticles (AuNPs) loaded on BP-NG (AuNPs/BP-NG), the lowest reaction barrier in the rate-determining steps of H2CrO4 reduction is observed. The findings provide an opportunity to develop a superior electrocatalyst in the community of energy and environment-related electrocatalysis.
资助项目	National Key R&D Program of China[2021YFB3201400] ; National Natural Science Foundation of China[21735005] ; National Natural Science Foundation of China[22204166] ; National Natural Science Foundation of China[22206187] ; Natural Science Foundation of Anhui Province[2008085QB79] ; China Postdoctoral Innovation Talents Supporting Project[BX2021317] ; Postdoctoral Researcher Funding Project of Anhui Province[2021B528] ; HFIPS Director's Fund[YZJJ202102] ; CASHIPS Director's Fund[YZJJ2022QN26]
WOS关键词	GOLD NANOCLUSTERS ; CHROMIUM(VI) ; CATALYSIS
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000870810700001
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; China Postdoctoral Innovation Talents Supporting Project ; Postdoctoral Researcher Funding Project of Anhui Province ; HFIPS Director's Fund ; CASHIPS Director's Fund
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/129436]
专题	中国科学院合肥物质科学研究院
通讯作者	Yang, Meng; Li, Pei-Hua; Ji, Hengxing; Huang, Xing-Jiu
作者单位	1.Chinese Acad Sci, Environm Mat & Pollut Control Lab, Inst Solid State Phys, HFIPS, Hefei 230031, Peoples R China 2.Chinese Acad Sci, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China 3.Tianjin Univ, Sch Environm Sci & Engn, Tianjin 300350, Peoples R China 4.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China 5.Univ Sci & Technol China, Sch Chem & Mat Sci, Hefei Natl Lab Phys Sci Microscale, CAS Key Lab Mat Energy Convers, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Xiao, Xiang-Yu,Song, Zong-Yin,Xie, Huanyu,et al. Unexpected Redispersion Effect of Au Nanoclusters for Enormous Enhancement of Electrocatalytic Stability and Activity[J]. ADVANCED FUNCTIONAL MATERIALS,2022.
APA	Xiao, Xiang-Yu.,Song, Zong-Yin.,Xie, Huanyu.,Zhao, Yong-Huan.,Chen, Shi-Hua.,...&Huang, Xing-Jiu.(2022).Unexpected Redispersion Effect of Au Nanoclusters for Enormous Enhancement of Electrocatalytic Stability and Activity.ADVANCED FUNCTIONAL MATERIALS.
MLA	Xiao, Xiang-Yu,et al."Unexpected Redispersion Effect of Au Nanoclusters for Enormous Enhancement of Electrocatalytic Stability and Activity".ADVANCED FUNCTIONAL MATERIALS (2022).