The Evolution in Catalytic Activity Driven by Periodic Transformation in the Inner Sites of Gold Clusters. (11th July 2019)

• Record Type: Journal Article
• Authors: Sun, Yongnan; Wang, Endong; Ren, Yujing; Xiao, Kang; Liu, Xu; Yang, Dan; Gao, Yi; Ding, Weiping; Zhu, Yan
• Is Part Of: Advanced functional materials. Volume 29:Number 38(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-07-11
• Subjects: activity evolution -- gold clusters -- inner sites -- periodic structure; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adfm.201904242
• Languages: English
• ISSNs: 1616-301X

Abstract

Abstract: It is extremely difficult to distinguish the contributions of different sites on the surface and in the inner sites of a catalyst to the overall catalytic performance, as the observed catalytic results reflect an ensemble average from almost all the active sites. How do the inner sites of a catalyst that seem to be not directly involved in a catalytic process exactly contribute to the catalytic performance? Toward this goal, herein the studies not only provide fundamental insights into how the alteration of Au8 n +4 (SR)4 n +8 clusters by only the inner structure can dramatically change the intrinsic catalytic properties, where Au8 n +4 (SR)4 n +8 ( n = 3, 4, 5) clusters have the same surface motifs but share a periodic kernel structure, but also further demonstrate that the evolution in catalytic activity can potentially be determined by periodic transformation in the inner kernels. Abstract : Can the inner sites surrounded by the surface have a substantial influence on catalysis ? This work demonstrates that the evolvement in the catalytic activity can be accompanied with periodic change in the inner sites of the Au8 n +4 (SR)4 n +8 ( n = 3, 4, 5) clusters that have the same surface motifs but share a periodic kernel structure.