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Photocatalytic Dehydrogenation of Formic Acid on CdS Nanorods through Ni and Co Redox Mediation under Mild Conditions
Author(s) -
Nasir Jamal Abdul,
Hafeez Muhammad,
Arshad Muhammad,
Ali Naveed Zafar,
Teixeira Ivo F.,
McPherson Ian,
Khan M. Abdullah
Publication year - 2018
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201800583
Subject(s) - nanorod , formic acid , photocatalysis , dehydrogenation , catalysis , hydrogen production , redox , hydrogen , noble metal , inorganic chemistry , chemistry , materials science , decomposition , photochemistry , nanotechnology , organic chemistry
Abstract Selective release of hydrogen from formic acid (FA) is deemed feasible to solve issues associated with the production and storage of hydrogen. Here, we present a new efficient photocatalytic system consisting of CdS nanorods (NRs), Ni, and Co to liberate hydrogen from FA. The optimized noble‐metal‐free catalytic system employs Ni/Co as a redox mediator to relay electrons and holes from CdS NRs to the Ni and Co, respectively, which also deters the oxidation of CdS NRs. As a result, a high hydrogen production activity of 32.6 mmol h −1 g −1 from the decomposition of FA was noted. Furthermore, the photocatalytic system exhibits sustained H 2 production rate for 12 h with sequential turnover numbers surpassing 4×10 3 , 3×10 3 , and 2×10 3 for Co–Ni/CdS NRs, Ni/CdS NRs, and CoCl 2 /CdS NRs, respectively.