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Confined Cu-OH single sites in SSZ-13 zeolite for the direct oxidation of methane to methanol.
Zhang, Hailong; Han, Peijie; Wu, Danfeng; Du, Congcong; Zhao, Jiafei; Zhang, Kelvin H L; Lin, Jingdong; Wan, Shaolong; Huang, Jianyu; Wang, Shuai; Xiong, Haifeng; Wang, Yong.
Afiliação
  • Zhang H; State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 422 South Siming Road, Xiamen, 361005, China.
  • Han P; College of Carbon Neutrality Future Technology, Sichuan University, Chengdu, 610064, China.
  • Wu D; State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 422 South Siming Road, Xiamen, 361005, China.
  • Du C; State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 422 South Siming Road, Xiamen, 361005, China.
  • Zhao J; State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 422 South Siming Road, Xiamen, 361005, China.
  • Zhang KHL; State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 422 South Siming Road, Xiamen, 361005, China.
  • Lin J; State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 422 South Siming Road, Xiamen, 361005, China.
  • Wan S; State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 422 South Siming Road, Xiamen, 361005, China.
  • Huang J; State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 422 South Siming Road, Xiamen, 361005, China.
  • Wang S; Clean Nano Energy Center, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China.
  • Xiong H; State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 422 South Siming Road, Xiamen, 361005, China. shuaiwang@xmu.edu.cn.
  • Wang Y; State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 422 South Siming Road, Xiamen, 361005, China. haifengxiong@xmu.edu.cn.
Nat Commun ; 14(1): 7705, 2023 Nov 24.
Article em En | MEDLINE | ID: mdl-38001068
ABSTRACT
The direct oxidation of methane to methanol (MTM) remains a significant challenge in heterogeneous catalysis due to the high dissociation energy of the C-H bond in methane and the high desorption energy of methanol. In this work, we demonstrate a breakthrough in selective MTM by achieving a high methanol space-time yield of 2678 mmol molCu-1 h-1 with 93% selectivity in a continuous methane-steam reaction at 400 °C. The superior performance is attributed to the confinement effect of 6-membered ring (6MR) voids in SSZ-13 zeolite, which host isolated Cu-OH single sites. Our results provide a deeper understanding of the role of Cu-zeolites in continuous methane-steam to methanol conversion and pave the way for further improvement.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article