BROWSE

Related Scientist

NANOMAT's photo.

NANOMAT
나노입자 연구단
more info

ITEM VIEW & DOWNLOAD

Electronic interaction between transition metal single-atoms and anatase TiO2 boosts CO2 photoreduction with H2O

Cited 0 time in webofscience Cited 0 time in scopus
8 Viewed 0 Downloaded
Title
Electronic interaction between transition metal single-atoms and anatase TiO2 boosts CO2 photoreduction with H2O
Author(s)
Byoung-Hoon Lee; Gong, Eunhee; Kim, Minho; Park, Sunghak; Kim, Hye Rim; Lee, Junho; Euiyeon Jung; Chan Woo Lee; Jinsol Bok; Yoon Jung; Young Seong Kim; Lee, Kug-Seung; Cho, Sung-Pyo; Jung, Jin-Woo; Cho, Chang-Hee; Lebegue, Sebastien; Nam, Ki Tae; Kim, Hyungjun; In, Su-Il; Taeghwan Hyeon
Publication Date
2022-02
Journal
Energy and Environmental Sciences, v.15, no.2, pp.601 - 609
Publisher
ROYAL SOC CHEMISTRY
Abstract
Single-atom catalysts are playing a pivotal-role in understanding atomic-level photocatalytic processes. However, single-atoms are typically non-uniformly distributed on photocatalyst surfaces, hindering the systematic investigation of structure-property correlation at atomic precision. Herein, by combining material design, spectroscopic analyses, and theoretical studies, we investigate the atomic-level CO2 photoreduction process on TiO2 photocatalysts with uniformly stabilized transition metal single-atoms. First, the electronic interaction between single Cu atoms and the surrounding TiO2 affects the reducibility of the TiO2 surface, leading to spontaneous O vacancy formation near Cu atoms. The coexistence of Cu atoms and O vacancies cooperatively stabilizes CO2 intermediates on the TiO2 surface. Second, our approach allows us to control the spatial distribution of uniform single Cu atoms on TiO2, and demonstrate that neighboring Cu atoms simultaneously engage in the interaction with CO2 intermediates by controlling the charge localization. Optimized Cu-1/TiO2 photocatalysts exhibit 66-fold enhancement in CO2 photoreduction performance compared to the pristine TiO2.
URI
https://pr.ibs.re.kr/handle/8788114/12064
DOI
10.1039/d1ee01574e
ISSN
1754-5692
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
There are no files associated with this item.

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse