Volume 57, Issue 35 pp. 11262-11266
Communication

Ordered Porous Nitrogen-Doped Carbon Matrix with Atomically Dispersed Cobalt Sites as an Efficient Catalyst for Dehydrogenation and Transfer Hydrogenation of N-Heterocycles

Dr. Yunhu Han

Dr. Yunhu Han

Department of Chemistry, Tsinghua University, Beijing, 100084 China

These authors contributed equally to this work.

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Dr. Ziyun Wang

Dr. Ziyun Wang

School of Chemistry and Chemical Engineering, The Queen's University of Belfast, Belfast, BT9 5AG UK

These authors contributed equally to this work.

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Ruirui Xu

Ruirui Xu

School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an, 710000 China

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Dr. Wei Zhang

Dr. Wei Zhang

Department of Chemistry, Tsinghua University, Beijing, 100084 China

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Dr. Wenxing Chen

Dr. Wenxing Chen

Department of Chemistry, Tsinghua University, Beijing, 100084 China

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Dr. Lirong Zheng

Dr. Lirong Zheng

Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100084 China

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Jian Zhang

Jian Zhang

Department of Chemistry, Tsinghua University, Beijing, 100084 China

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Dr. Jun Luo

Dr. Jun Luo

Center for Electron Microscopy, Tianjin University of Technology, Tianjin, 300384 China

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Konglin Wu

Konglin Wu

Department of Chemistry, Tsinghua University, Beijing, 100084 China

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Dr. Youqi Zhu

Dr. Youqi Zhu

Department of Chemistry, Tsinghua University, Beijing, 100084 China

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Dr. Chen Chen

Dr. Chen Chen

Department of Chemistry, Tsinghua University, Beijing, 100084 China

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Dr. Qing Peng

Dr. Qing Peng

Department of Chemistry, Tsinghua University, Beijing, 100084 China

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Dr. Qiang Liu

Dr. Qiang Liu

Department of Chemistry, Tsinghua University, Beijing, 100084 China

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Prof. Dr. P. Hu

Prof. Dr. P. Hu

School of Chemistry and Chemical Engineering, The Queen's University of Belfast, Belfast, BT9 5AG UK

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Prof. Dr. Dingsheng Wang

Corresponding Author

Prof. Dr. Dingsheng Wang

Department of Chemistry, Tsinghua University, Beijing, 100084 China

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Prof. Dr. Yadong Li

Corresponding Author

Prof. Dr. Yadong Li

Department of Chemistry, Tsinghua University, Beijing, 100084 China

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First published: 06 July 2018
Citations: 187

Graphical Abstract

One stop shop: Isolated cobalt single-atom sites stabilized on an ordered porous nitrogen-doped carbon matrix are highly efficient catalysts for acceptorless dehydrogenation of N-heterocycles to release H2, and the reverse transfer hydrogenation (or hydrogenation) of N-heterocycles with a hydrogen source to store H2.

Abstract

Single-atom catalysts (SACs) have been explored widely as potential substitutes for homogeneous catalysts. Isolated cobalt single-atom sites were stabilized on an ordered porous nitrogen-doped carbon matrix (ISAS-Co/OPNC). ISAS-Co/OPNC is a highly efficient catalyst for acceptorless dehydrogenation of N-heterocycles to release H2. ISAS-Co/OPNC also exhibits excellent catalytic activity for the reverse transfer hydrogenation (or hydrogenation) of N-heterocycles to store H2, using formic acid or external hydrogen as a hydrogen source. The catalytic performance of ISAS-Co/OPNC in both reactions surpasses previously reported homogeneous and heterogeneous precious-metal catalysts. The reaction mechanisms are systematically investigated using first-principles calculations and it is suggested that the Eley–Rideal mechanism is dominant.

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