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DOI	10.1039/d1ee00074h
	Engineering electrocatalyst nanosurfaces to enrich the activity by inducing lattice strain
	Maiti S.; Maiti K.; Curnan M.T.; Kim K.; Noh K.-J.; Han J.W.
发表日期	2021
ISSN	17545692
起始页码	3717
结束页码	3756
卷号	14 期号:7
英文摘要	Electrocatalysis undeniably offers noteworthy improvements to future energy conversion and storage technologies, such as fuel cells, water electrolyzers, and metal-air batteries. The molecular interaction between catalytic surfaces and chemical reactants produces a trade-off between catalyst activity and effectiveness, and hence requires optimization. When enhancing electrocatalysis, atomic surface structure tuning is of primary importance in simultaneously meeting demands for electrocatalytic activity and stability. The impact of lattice strain on catalytic activity tuning is experimentally revealed in de-alloyed bimetallic nanoparticles, in which surface distortion makes essential contributions to the activities of state-of-the-art electrocatalysts that vary over distinct sizes, surface defect concentrations, shapes, and atomic compositions under the studied environments. Further, metal-rich shells show compressive strain in core-shell catalyst nanoparticles, yielding shifts in metal electronic band structure features, weakened chemisorption of oxygenated species, and changes in the mechanisms governing catalyst activity. Our study evaluates the practical and fundamental effects of surface distortion and defects on interfacial electrocatalysis, namely in the oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER). This is accomplished via an understanding of strain from theory, establishing reactivity-strain relationships that inform the tuning and enhancement of electrocatalytic activity and stability. © The Royal Society of Chemistry.
英文关键词	Economic and social effects; Electrocatalysis; Electrocatalysts; Electrolytic reduction; Energy conversion; Fuel cells; Fuel storage; Hydrogen evolution reaction; Metal nanoparticles; Metal-air batteries; Nanocatalysts; Oxygen; Oxygen evolution reaction; Oxygen reduction reaction; Surface defects; Surface structure; Tuning; Atomic compositions; Bimetallic nanoparticles; Core shell catalysts; Defect concentrations; Electrocatalytic activity and stability; Electronic band structure; Oxygen evolution reaction (oer); Surface distortion; Catalyst activity; catalyst; energy storage; engineering; induced response; lattice dynamics; nanoparticle
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190600
作者单位	Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Gyeongbuk, Pohang, 37673, South Korea
推荐引用方式 GB/T 7714	Maiti S.,Maiti K.,Curnan M.T.,et al. Engineering electrocatalyst nanosurfaces to enrich the activity by inducing lattice strain[J],2021,14(7).
APA	Maiti S.,Maiti K.,Curnan M.T.,Kim K.,Noh K.-J.,&Han J.W..(2021).Engineering electrocatalyst nanosurfaces to enrich the activity by inducing lattice strain.Energy & Environmental Science,14(7).
MLA	Maiti S.,et al."Engineering electrocatalyst nanosurfaces to enrich the activity by inducing lattice strain".Energy & Environmental Science 14.7(2021).