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Structural Design of Conjugated Poly (ferrocene‐phenanthroline) for Photocatalytic Hydrogen Evolution from Water
Author(s) -
Luo ShuPing,
Wang XiaoJing,
Chen Hao,
Yu ZheJian,
Lou WenYa,
Xia LiangMin,
Lou BaiYang,
Liu XueFen,
Kang Peng,
Lennox Alastair J. J.,
Wu QingAn
Publication year - 2018
Publication title -
chemphotochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.13
H-Index - 18
ISSN - 2367-0932
DOI - 10.1002/cptc.201800070
Subject(s) - photocatalysis , ferrocene , conjugated system , chromophore , phenanthroline , polymer , materials science , photochemistry , catalysis , supramolecular chemistry , electron transfer , hydrogen bond , water splitting , combinatorial chemistry , chemistry , electrochemistry , inorganic chemistry , organic chemistry , crystal structure , molecule , electrode , composite material
The discovery of highly efficient photocatalysts for water splitting remains a challenge of high importance. Here, we report a series of novel organic conjugated polymers (OCPs) that contain complexed non‐noble metals for photocatalytic hydrogen evolution. The conjugated chromophore polymers were synthesized by a Heck coupling between ferrocene and phenantholine derivatives, which absorb broadly, even up to the near‐IR region. The photocatalyst performances were investigated for hydrogen evolution by using Fe 3 (CO) 12 as a water reduction catalyst. H 2 evolution rates up to 212.4 μmol h −1 , with an apparent quantum yield of 10.3 % at 380 nm, were obtained with a photocatalyst polymer based on alternating ferrocene and 4,7‐bisphenyl‐1,10‐phenanthroline units. The high activity is likely due to favorable electron transfer and coordination of Fe 3 (CO) 12 with phenanthroline in the supramolecular OCPs.