Aging amorphous/crystalline heterophase PdCu nanosheets for catalytic reactions
Hongfei Cheng1; Nailiang Yang1; Xiaozhi Liu3; Qinbai Yun1; Min Hao Goh5; Bo Chen1; Xiaoying Qi5; Qipeng Lu1; Xiaoping Chen7; Wen Liu7; Lin Gu3; Hua Zhang1
Source Publication国家科学评论:英文版

Phase engineering is arising as an attractive strategy to tune the properties and functionalities of nanomaterials.In particular,amorphous/crystalline heterophase nanostructures have exhibited some intriguing properties.Herein,the one-pot wet-chemical synthesis of two types of amorphous/crystalline heterophase Pd Cu nanosheets is reported,in which one is amorphous phase-dominant and the other one is crystalline phase-dominant.Then the aging process of the synthesized Pd Cu nanosheets is studied,during which their crystallinity increases,accompanied by changes in some physicochemical properties.As a proof-of-concept application,their aging effect on catalytic hydrogenation of 4-nitrostyrene is investigated.As a result,the amorphous phase-dominant nanosheets initially show excellent chemoselectivity.After aging for 14 days,their catalytic activity is higher than that of crystalline phase-dominant nanosheets.This work demonstrates the intriguing properties of heterophase nanostructures,providing a new platform for future studies on the regulation of functionalities and applications of nanomaterials by phase engineering.

KeywordAmorphous/crystalline Heterophase Nanosheets Aging Selective Hydrogenation Catalysis
Funding Project[Ministry of Education under AcRF] ; [Nanyang Technological University]
Document Type期刊论文
Affiliation1.Center for Programmable Materials,School of Materials Science and Engineering,Nanyang Technological University,Singapore
2.State Key Laboratory of Biochemical Engineering,Institute of Process Engineering,Chinese Academy of Sciences
3.Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences
5.Singapore Institute of Manufacturing Technology,A*STAR,Singapore
6.School of Materials Science and Engineering,University of Science and Technology Beijing
7.School of Chemical and Biomedical Engineering,Nanyang Technological University,Singapore
8.Songshan Lake Materials Laboratory
9.Department of Chemistry,City University of Hong Kong,Hong Kong
Recommended Citation
GB/T 7714
Hongfei Cheng,Nailiang Yang,Xiaozhi Liu,et al. Aging amorphous/crystalline heterophase PdCu nanosheets for catalytic reactions[J]. 国家科学评论:英文版,2019,6.0(005):955.
APA Hongfei Cheng.,Nailiang Yang.,Xiaozhi Liu.,Qinbai Yun.,Min Hao Goh.,...&Hua Zhang.(2019).Aging amorphous/crystalline heterophase PdCu nanosheets for catalytic reactions.国家科学评论:英文版,6.0(005),955.
MLA Hongfei Cheng,et al."Aging amorphous/crystalline heterophase PdCu nanosheets for catalytic reactions".国家科学评论:英文版 6.0.005(2019):955.
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