title: Efficient Conjugated Polymer-Methyl Viologen Electron Transfer System for Controlled Photo-Driven Hydrogen Evolution.
abstract: Photodriven hydrogen production has been a good strategy in solar energy utilization. In this work, we use a water-soluble negatively charged polythiophene derivative as photosensitizer to produce hydrogen from aqueous solution containing methyl viologen (MV2+), ethylenediaminetetraacetic acid disodium salt (EDTA), and a colloidal platinum catalyst upon exposure to xenon lamp (>420 nm) or natural sunlight. The supramolecular assembly and dis-assembly processes of MV2+and cucurbit[8]uril (CB[8]) was further used to reversibly "turn-on" and "turn-off" hydrogen generation of the polymer system. This research offers a proof-of-concept to control hydrogen generation in demand, which is an advantage for hydrogen utilization and storage.
authors.affiliation: Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China.
authors.forename: Huan
authors.initials: H
authors.lastname: Lu
authors.affiliation: Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China.
authors.forename: Rong
authors.initials: R
authors.lastname: Hu
authors.affiliation: Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China.
authors.forename: Haotian
authors.initials: H
authors.lastname: Bai
authors.affiliation: Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China.
authors.forename: Hui
authors.initials: H
authors.lastname: Chen
authors.affiliation: Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China.
authors.forename: Fengting
authors.initials: F
authors.lastname: Lv
authors.affiliation: Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China.
authors.forename: Libing
authors.initials: L
authors.lastname: Liu
authors.affiliation: Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China.
authors.forename: Shu
authors.identifier: http://orcid.org/0000-0001-8781-2535
authors.initials: S
authors.lastname: Wang
authors.affiliation: College of Chemistry and Molecular Engineering, East China University of Science and Technology , Shanghai 200237, P. R. China.
authors.forename: He
authors.identifier: http://orcid.org/0000-0003-3547-7485
authors.initials: H
authors.lastname: Tian
keywords: conjugated polymers; hydrogen generation; light catalysis; self-assembly; switch