Tailoring of Active Sites from Single to Dual Atom Sites for Highly Efficient Electrocatalysis.

Content Provider	Europe PMC
Author	Zhang, Hongwei Jin, Xindie Lee, Jong-Min Wang, Xin
Copyright Year	2022
Abstract	Single atom catalysts (SACs) have been attracting extensiveattentionin electrocatalysis because of their unusual structure and extremeatom utilization, but the low metal loading and unified single siteinduced scaling relations may limit their activity and practical application.Tailoring of active sites at the atomic level is a sensible approachto break the existing limits in SACs. In this review, SACs were firstdiscussed regarding carbon or non-carbon supports. Then, five tailoringstrategies were elaborated toward improving the electrocatalytic activityof SACs, namely strain engineering, spin-state tuning engineering,axial functionalization engineering, ligand engineering, and porosityengineering, so as to optimize the electronic state of active sites,tune d orbitals of transition metals, adjust adsorptionstrength of intermediates, enhance electron transfer, and elevatemass transport efficiency. Afterward, from the angle of inducing electronredistribution and optimizing the adsorption nature of active centers,the synergistic effect from adjacent atoms and recent advances intailoring strategies on active sites with binuclear configurationwhich include simple, homonuclear, and heteronuclear dual atom catalysts(DACs) were summarized. Finally, a summary and some perspectives forachieving efficient and sustainable electrocatalysis were presentedbased on tailoring strategies, design of active sites, and in situ characterization.
ISSN	19360851
Journal	ACS Nano
Volume Number	16
PubMed Central reference number	PMC9706812
Issue Number	11
PubMed reference number	36331385
e-ISSN	1936086X
DOI	10.1021/acsnano.2c06827
Language	English
Publisher	American Chemical Society
Publisher Date	2022-11-04
Access Restriction	Open
Rights License	Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). © 2022 The Authors. Published by American Chemical Society
Subject Keyword	Electrocatalysis Single atom catalysts Strain Spin-state tuning Axial functionalization Ligand Porosity Dual atom catalysts
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Physics and Astronomy Engineering Materials Science