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
Source Publication	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
Corresponding Author	Lin, Chu-Hong(chlin@iim.ac.cn)
Abstract	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.
Keyword	Electrochemical reactions Random-walk nanoparticles Monte Carlo simulation Electrocatalysis Mass transport
DOI	10.1016/j.cej.2021.129393
WOS Keyword	ELECTRON-TRANSFER ; GOLD ; COLLISIONS ; BOND
Indexed By	SCI
Language	英语
Funding Project	National Natural Science Foundation of China[21802145] ; National Natural Science Foundation of China[21735005] ; One Hundred Person Project, Chinese Academy of Sciences, China
Funding Organization	National Natural Science Foundation of China ; One Hundred Person Project, Chinese Academy of Sciences, China
WOS Research Area	Engineering
WOS Subject	Engineering, Environmental ; Engineering, Chemical
WOS ID	WOS:000655660700005
Publisher	ELSEVIER SCIENCE SA
Citation statistics	Cited Times:1[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.hfcas.ac.cn:8080/handle/334002/122687
Collection	中国科学院合肥物质科学研究院
Corresponding Author	Lin, Chu-Hong
Affiliation	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
Recommended Citation 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).

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