한빛사논문
- 조회182
Sung Hyun Park,1 Sukyoung Kim,2,3 Jae Whan Park,4 Seunghee Kim,2,3 Wonsuk Cha,5 and Joonseok Lee 2,3,6,*
1Department of HY-KIST Bio-Convergence, Hanyang University, Seoul, 04763 Republic of Korea
2Department of Chemistry, Hanyang University, Seoul, 04763 Republic of Korea
3Research Institute for Natural Sciences, Hanyang University, Seoul, 04763 Republic of Korea
4Center for Artificial Low Dimensional Electronic Systems, Institute for Basic Science, Pohang, 37673 Republic of Korea
5X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439 USA
6Research Institute for Convergence of Basic Sciences, Hanyang University, Seoul, 04763 Republic of Korea
*Corresponding author: correspondence to Joonseok Lee
Abstract
Photocatalysis is a promising technique due to its capacity to efficiently harvest solar energy and its potential to address the global energy crisis. However, the structure-activity relationships of photocatalyst during wavelength-dependent photocatalytic reactions remains largely unexplored because it is difficult to measure under operating conditions. Here we show the photocatalytic strain evolution of a single Au nanoparticle (AuNP) supported on a TiO2 film by combining three-dimensional (3D) Bragg coherent X-ray diffraction imaging with an external light source. The wavelength-dependent generation of reactive oxygen species (ROS) has significant effects on the structural deformation of the AuNP, leading to its strain evolution. Density functional theory (DFT) calculations are employed to rationalize the induced strain caused by the adsorption of ROS on the AuNP surface. These observations provide insights of how the photocatalytic activity impacts on the structural deformation of AuNP, contributing to the general understanding of the atomic-level catalytic adsorption process.
논문정보
- Research article
- 2024년 06월 (BRIC 등록일 2024-07-03)
- 국내(교신)+국외 연구진
- 바이오·의료융합 > 바이오센싱 및 나노바이오물질
댓글 작성 로그인
팝업 닫기관련 링크
연구자 키워드
관련분야 연구자보기
소속기관 논문보기
관련분야 논문보기
해당논문 저자보기
