DataVXChemistry of MaterialsPaper
journal article·2020-02-11

From One to Two: Acidic Proton Spatial Networks in Porous Zeolite Materials

Xianfeng Yi, Yao Xiao, Guangchao Li, Zhiqiang Liu, Wei Chen, Shang-Bin Liu, Anmin Zheng

Chemistry of Materials· Volume 32· Issue 3
Publisher page
Source abstract

Abstract

Understanding the spatial distribution and different nature of active sites and elucidating their synergy in heterogeneous catalysts are fundamentally important for providing comprehensive insight into relevant structure–function relationships. However, this is difficult to achieve in microporous zeolite materials owing to the nearly indistinguishable physicochemical properties of each acidic site observed by conventional techniques. Here we report the real-space observation, with atomic molecular insights, of fascinating acidic properties in dual-pore channels of mordenite (H-MOR) zeolite using a combination of nuclear magnetic resonance probe molecule techniques and density functional theory calculations. Accordingly, the impact of acidic properties (e.g., detailed acidic distribution, pore confinement effect, and synergy effect of Brønsted acid pairs) of H-MOR zeolite on catalytic performance has been clarified. These results offer new insights into cooperative acid-catalyzed reactions over porous acidic catalysts with diverse pore architectures.
Source: openalex_inverted_index · Quality: baseline

Research context

Catalysis & surfaces

OpenAlex topics: Zeolite Catalysis and Synthesis · Advanced NMR Techniques and Applications · Metal-Organic Frameworks: Synthesis and Applications

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

Affiliations

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Key Laboratory of Magnetic Resonance in Biological Systems, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, P. R. China

University of Chinese Academy of Sciences, Beijing 100049, P. R. China

State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, P. R. China

Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan

Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, P. R. China

Funding

National Natural Science Foundation of China · Key Research Program of Frontier Sciences, CAS · Natural Science Foundation of Hubei Province of China · SINOPEC Shanghai Research Institute of Petrochemical Technology

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