Understanding the ensemble electrochemistry of random-walk nanoparticles: Improved reaction efficiency and mechanistic insights

doi:10.1016/j.cej.2021.129393

HFCAS OpenIR

	Understanding the ensemble electrochemistry of random-walk nanoparticles: Improved reaction efficiency and mechanistic insights
	Lin, Chu-Hong 1; Ye, Jia-Jia 2; Huang, Xing-Jiu1,2
	2021-08-15
发表期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
通讯作者	Lin, Chu-Hong(chlin@iim.ac.cn)
摘要	Dispersing nanoparticles into solution instead of utilizing conventional nanoparticle modified electrodes can improve the reaction efficiency of electrochemical systems by orders of magnitude. A theoretical model was built describing the ensemble electrochemistry of multiple random-walk nanoparticles via Monte Carlo simulation. It was found that solution-phase nanoparticles broke the mass transport limitation via pre-adsorbing substrates from solution. Even not all the nanoparticles can be "recycled" during the reaction, the renewal of a small portion of nanoparticles greatly improved the overall reaction rate. Proof-of-concept experiments of the reduction reaction of arsenic(III) at gold nanoparticles were implemented, which confirmed our theoretical predictions. This work revealed the mechanisms of reaction enhancement in nanoparticle solutions, verifying the feasibility of employing the random-walk nanoparticle technique for engineering electrochemical reactions in general.
关键词	Electrochemical reactions Random-walk nanoparticles Monte Carlo simulation Electrocatalysis Mass transport
DOI	10.1016/j.cej.2021.129393
关键词[WOS]	ELECTRON-TRANSFER ; GOLD ; COLLISIONS ; BOND
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[21802145] ; National Natural Science Foundation of China[21735005] ; One Hundred Person Project, Chinese Academy of Sciences, China
项目资助者	National Natural Science Foundation of China ; One Hundred Person Project, Chinese Academy of Sciences, China
WOS研究方向	Engineering
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:000655660700005
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/122687
专题	中国科学院合肥物质科学研究院
通讯作者	Lin, Chu-Hong
作者单位	1.Chinese Acad Sci, HFIPS, Inst Solid State Phys, Environm Mat & Pollut Control Lab, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Lin, Chu-Hong,Ye, Jia-Jia,Huang, Xing-Jiu. Understanding the ensemble electrochemistry of random-walk nanoparticles: Improved reaction efficiency and mechanistic insights[J]. CHEMICAL ENGINEERING JOURNAL,2021,418.
APA	Lin, Chu-Hong,Ye, Jia-Jia,&Huang, Xing-Jiu.(2021).Understanding the ensemble electrochemistry of random-walk nanoparticles: Improved reaction efficiency and mechanistic insights.CHEMICAL ENGINEERING JOURNAL,418.
MLA	Lin, Chu-Hong,et al."Understanding the ensemble electrochemistry of random-walk nanoparticles: Improved reaction efficiency and mechanistic insights".CHEMICAL ENGINEERING JOURNAL 418(2021).