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Colloidal Single-Layer Photocatalysts for Methanol-Storable Solar H2 Fuel.
Pang, Yingping; Uddin, Md Nasir; Chen, Wei; Javaid, Shaghraf; Barker, Emily; Li, Yunguo; Suvorova, Alexandra; Saunders, Martin; Yin, Zongyou; Jia, Guohua.
Afiliação
  • Pang Y; Curtin Institute of Functional Molecules and Interfaces, School of Molecular and Life Sciences, Curtin University, Perth, WA, 6845, Australia.
  • Uddin MN; Research School of Chemistry, Australian National University, Canberra, ACT, 2600, Australia.
  • Chen W; Curtin Institute of Functional Molecules and Interfaces, School of Molecular and Life Sciences, Curtin University, Perth, WA, 6845, Australia.
  • Javaid S; Curtin Institute of Functional Molecules and Interfaces, School of Molecular and Life Sciences, Curtin University, Perth, WA, 6845, Australia.
  • Barker E; Curtin Institute of Functional Molecules and Interfaces, School of Molecular and Life Sciences, Curtin University, Perth, WA, 6845, Australia.
  • Li Y; Faculty of Mathematical and Physical Sciences, University College London, Gower Street, London, WC1E 6BT, UK.
  • Suvorova A; Centre for Microscopy, Characterization and Analysis (CMCA), The University of Western Australia, Perth, WA, 6009, Australia.
  • Saunders M; Centre for Microscopy, Characterization and Analysis (CMCA), The University of Western Australia, Perth, WA, 6009, Australia.
  • Yin Z; Research School of Chemistry, Australian National University, Canberra, ACT, 2600, Australia.
  • Jia G; Curtin Institute of Functional Molecules and Interfaces, School of Molecular and Life Sciences, Curtin University, Perth, WA, 6845, Australia.
Adv Mater ; 31(49): e1905540, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31631407
ABSTRACT
Molecular surfactants are widely used to control low-dimensional morphologies, including 2D nanomaterials in colloidal chemical synthesis, but it is still highly challenging to accurately control single-layer growth for 2D materials. A scalable stacking-hinderable strategy to not only enable exclusive single-layer growth mode for transition metal dichalcogenides (TMDs) selectively sandwiched by surfactant molecules but also retain sandwiched single-layer TMDs' photoredox activities is developed. The single-layer growth mechanism is well explained by theoretical calculation. Three types of single-layer TMDs, including MoS2 , WS2 , and ReS2 , are successfully synthesized and demonstrated in solar H2 fuel production from hydrogen-stored liquid carrier-methanol. Such H2 fuel production from single-layer MoS2 nanosheets is COx -free and reliably workable under room temperature and normal pressure with the generation rate reaching ≈617 µmole g-1 h-1 and excellent photoredox endurability. This strategy opens up the feasible avenue to develop methanol-storable solar H2 fuel with facile chemical rebonding actualized by 2D single-layer photocatalysts.

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Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: MEDLINE Idioma: Inglês Revista: Adv Mater Assunto da revista: Biofísica / Química Ano de publicação: 2019 Tipo de documento: Artigo País de afiliação: Austrália