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Synthesis, Characterization, and Photoelectrochemical Catalytic Studies of a Water‐Stable Zinc‐Based Metal–Organic Framework
Author(s) -
Altaf Muhammad,
Sohail Manzar,
Mansha Muhammad,
Iqbal Naseer,
Sher Muhammad,
Fazal Atif,
Ullah Nisar,
Isab Anvarhusein A.
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.201702122
Subject(s) - catalysis , metal organic framework , cyclohexane , water splitting , photocurrent , zinc , inorganic chemistry , oxygen evolution , aqueous solution , reagent , metal , materials science , metal ions in aqueous solution , electrolyte , diamine , chemistry , chemical engineering , electrochemistry , polymer chemistry , organic chemistry , photocatalysis , electrode , optoelectronics , adsorption , engineering
Metal–organic frameworks (MOFs) are class of porous materials that can be assembled in a modular manner by using different metal ions and organic linkers. Owing to their tunable structural properties, these materials are found to be useful for gas storage and separation technologies, as well as for catalytic applications. A cost‐effective zinc‐based MOF ([Zn(bpcda)(bdc)] n ) is prepared by using N , N ′‐bis(pyridin‐4‐ylmethylene)cyclohexane‐1,4‐diamine [ N , N ′‐bis(pyridin‐4‐ylmethylene)cyclohexane‐1,4‐diamine] and benzenedicarboxylic acid (bdc) linkers. This new material exhibits remarkable photoelectrochemical (PEC) catalytic activity in water splitting for the evolution of oxygen. Notably, this non‐noble metal‐based MOF, without requiring immobilization on other supports or containing metal particles, produced a highest photocurrent density of 31 μA cm −2 at 0.9 V, with appreciable stability and negligible photocorrosion. Advantageously for the oxygen evolution process, no external reagents or sacrificial agents are required in the aqueous electrolyte solution.