journal article·2021-03

Ultrathin Amorphous/Crystalline Heterophase Rh and Rh Alloy Nanosheets as Tandem Catalysts for Direct Indole Synthesis

Jingjie Ge, Peiqun Yin, Ye Chen, Hongfei Cheng, Jiawei Liu, Bo Chen, Chaoliang Tan, Peng‐Fei Yin, Hong‐Xing Zheng, Qiang‐Qiang Li, Shuangming Chen, Wenjie Xu, Xiaoqian Wang, Geng Wu, Rongbo Sun, Xiang‐Huan Shan, Xun Hong, Hua Zhang

Advanced Materials· Volume 33· Issue 9
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Abstract

Abstract Heterogeneous noble‐metal‐based catalysis plays an essential role in the production of fine chemicals. Rh‐based catalysts are one of the most active candidates for indole synthesis. However, it is still highly desired to develop heterogeneous Rh‐based catalysts with high activity and selectivity. In this work, a general, facile wet‐chemical method is reported to synthesize ultrathin amorphous/crystalline heterophase Rh and Rh‐based bimetallic alloy nanosheets (NSs), including RhCu, RhZn, and RhRu. Impressively, the amorphous/crystalline heterophase Rh NSs exhibit enhanced catalytic activity toward the direct synthesis of indole compared to the crystalline counterpart. Importantly, the obtained amorphous/crystalline heterophase RhCu alloy NSs can further enhance the selectivity to indole of >99.9% and the conversion is 100%. This work demonstrates the importance of phase engineering and metal alloying in the rational design and synthesis of tandem heterogeneous catalysts toward fine chemical synthesis.
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Research context

OpenAlex topics: Nanomaterials for catalytic reactions · Nanocluster Synthesis and Applications · Advanced Photocatalysis Techniques

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Center for Programmable Materials School of Materials Science and Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore

Center of Advanced Nanocatalysis (CAN) Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of China Hefei Anhui 230026 China

School of Chemistry and Environmental Engineering Institute of Low‐dimensional Materials Genome Initiative Shenzhen University Shenzhen 518060 China

Department of Chemistry The Chinese University of Hong Kong Shatin, N.T. Hong Kong China

Department of Chemistry City University of Hong Kong Hong Kong China

Department of Electrical Engineering City University of Hong Kong Hong Kong China

School of Chemistry and Chemical Engineering Liaocheng University Liaocheng Shandong 252059 China

School of Physical and Mathematical Sciences Nanyang Technological University 21 Nanyang Link Singapore 637371 Singapore

National Synchrotron Radiation Laboratory CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230029 China

Department of Chemistry University of Science and Technology of China Hefei Anhui 230026 China

Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM) City University of Hong Kong Hong Kong China

Funding

City University of Hong Kong

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