articleNature CommunicationsMay 19, 2022GOLD OA

High-performance photocatalytic nonoxidative conversion of methane to ethane and hydrogen by heteroatoms-engineered TiO2

WZWenqing ZhangCFCen‐Feng FuJLJingxiang LowDDDelong DuanJMJun Ma

University of Science and Technology of China · National Science Centre · +6 more institutions

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Abstract

Abstract Nonoxidative coupling of methane (NOCM) is a highly important process to simultaneously produce multicarbons and hydrogen. Although oxide-based photocatalysis opens opportunities for NOCM at mild condition, it suffers from unsatisfying selectivity and durability, due to overoxidation of CH 4 with lattice oxygen. Here, we propose a heteroatom engineering strategy for highly active, selective and durable photocatalytic NOCM. Demonstrated by commonly used TiO 2 photocatalyst, construction of Pd–O 4 in surface reduces contribution of O sites to valence band, overcoming the limitations. In contrast to state of the art, 94.3% selectivity is achieved for C 2 H 6 production at 0.91 mmol g –1 h –1 along with…

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Topics & keywords

Topics
Keywords
  • Photocatalysis
  • Heteroatom
  • Selectivity
  • Materials science
  • Methane
  • Hydrogen
  • Photochemistry
  • Durability
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