Impacts of framework Al distribution and acidic properties of Cu-exchanged CHA-type zeolite on catalytic conversion of methane into methanol followed by lower hydrocarbons

Kengo Nakamura; Peipei Xiao; Ryota Osuga; Yong Wang; Shuhei Yasuda; Takeshi Matsumoto; Junko N. Kondo; Mizuho Yabushita; Atsushi Muramatsu; Hermann Gies; Toshiyuki Yokoi

doi:10.1039/D3CY00127J

Impacts of framework Al distribution and acidic properties of Cu-exchanged CHA-type zeolite on catalytic conversion of methane into methanol followed by lower hydrocarbons†

Kengo Nakamura,^a Peipei Xiao,^a Ryota Osuga,

^b Yong Wang,^a Shuhei Yasuda,^a Takeshi Matsumoto,^a Junko N. Kondo,

^a Mizuho Yabushita,

^c Atsushi Muramatsu,^be Hermann Gies

^ad and Toshiyuki Yokoi

*^a

Author affiliations

* Corresponding authors

^a Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
E-mail: yokoi@cat.res.titech.ac.jp

^b Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan

^c Department of Applied Chemistry, School of Engineering, Tohoku University, 6-6-07 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan

^d Institute of Geology, Mineralogy und Geophysics, Ruhr-University Bochum, Bochum 44780, Germany

^e International Center for Synchrotron Radiation Innovation Smart, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan

Abstract

This work highlighted the significance of the Al distribution in the CHA-type zeolite in the formation of active Cu species for oxidative conversion of CH₄; isolated Al atoms in the zeolite framework are found to be advantageous for producing CH₃OH. The acid sites also played an important role in the production of hydrocarbons; produced CH₃OH is converted into hydrocarbons over the acid sites.

Catalysis Science & Technology

Impacts of framework Al distribution and acidic properties of Cu-exchanged CHA-type zeolite on catalytic conversion of methane into methanol followed by lower hydrocarbons†

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Impacts of framework Al distribution and acidic properties of Cu-exchanged CHA-type zeolite on catalytic conversion of methane into methanol followed by lower hydrocarbons

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