Importance of the structural integrity of a carbon conjugated mediator for photocatalytic hydrogen generation from water over a CdS–carbon nanotube–MoS2 composite

Molly Meng-Jung Li (1) , Poppy Mills (1) , Simon M. Fairclough (1) , Alex Robertson (1) , Yung-Kang Peng (1) , Jamie Warner (1) , Chunyang Nie (2) , Emmanuel Flahaut (2) , Shik Chi Edman Tsang (1)

1 University of Oxford
2 CIRIMAT - Centre interuniversitaire de recherche et d'ingenierie des matériaux

Incorporation of CdS quantum dots is shown to significantly promote photocatalytic hydrogen production from water over singlelayer MoS2 in a remote manner via their dispersions on a carbon nanotube as a nanocomposite: the hydrogen evolution rate is found to be critically dependent on the content and structural integrity of the carbon nanotube such that the double-walled carbon nanotube shows superior H2 production to a single-walled carbon nanotube because the inner carbon tubules survive fromthe structural damage during functionalization.

Mots clés: Quantum dots; Carbon nanotube; Photocatalysis; Water splitting; Hydrogen

Domaines: Matériaux; Matériaux

Molly Meng-Jung Li, Poppy Mills, Simon M. Fairclough, Alex Robertson, Yung-Kang Peng, et al.. Importance of the structural integrity of a carbon conjugated mediator for photocatalytic hydrogen generation from water over a CdS–carbon nanotube–MoS2 composite. Chemical Communications, 2016, 52 (93), pp.13596-13599. ⟨10.1039/c6cc07632g⟩. ⟨hal-02442132⟩