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説明:

Recent advances in the photocatalytic activation of dry reforming of methane (DRM: CO2 + CH4 → 2CO + 2H2) at low temperature and ambient pressure have generated considerable interest as a promising route to convert greenhouse gases into valuable synthetic gas (syngas). While detailed studies have revealed the mechanisms involved in photocatalytic DRM at metal-semiconductor interfaces, less attention has been devoted to how high surface area semiconductor supports may enhance such conversions. Here we structure triblock terpolymer self-assembly directed sol-gel derived transition metal oxide (Ta2O5 or TiO2) supports of Rh-decorated photocatalysts into various equilibrium and non-equilibrium derived porous morphologies and show how they modulate single-pass conversion, total production rate, and material efficiency. Supported by in-depth materials characterization and flow simulations rationalizing observed trends, results reveal record catalyst performance. Our work suggests that asymmetric pore structures simultaneously optimizing mass transport and surface area may be well-suited to maximize photocatalyst performance.

権利情報:

• In Copyright
  

  This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Nano, copyright © 2025 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsnano.5c04286.

キーワード: dry reforming of methane, block copolymer, photocatalyst, self-assembly, hydrogen production, porous asymmetric membrane

刊行年月日: 2025-07-08

出版者: ACS Publications

掲載誌:

• ACS NANO (ISSN: 19360851)

研究助成金:

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.5549

公開URL: https://doi.org/10.1021/acsnano.5c04286

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更新時刻: 2025-06-26 14:18:00 +0900

MDRでの公開時刻: 2026-06-24 08:32:56 +0900