Immobilization of an Amphiphilic Molecular Cobalt Catalyst on Carbon Black for Ligand-Assisted Water Oxidation | Zendy

Habib Baydoun | Zendy; Jordyn Burdick | Zendy; Bishnu Thapa | Zendy; Lanka D. Wickramasinghe | Zendy; Da Li | Zendy; Jens Niklas | Zendy; Oleg G. Poluektov | Zendy; H. Bernhard Schlegel | Zendy; Cláudio N. Verani | Zendy

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Immobilization of an Amphiphilic Molecular Cobalt Catalyst on Carbon Black for Ligand-Assisted Water Oxidation

Author(s) -

Habib Baydoun,

Jordyn Burdick,

Bishnu Thapa,

Lanka D. Wickramasinghe,

Da Li,

Jens Niklas,

Oleg G. Poluektov,

H. Bernhard Schlegel,

Cláudio N. Verani

Publication year - 2018

Publication title -

inorganic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.348

H-Index - 233

eISSN - 1520-510X

pISSN - 0020-1669

DOI - 10.1021/acs.inorgchem.7b03252

Subject(s) - chemistry , overpotential , catalysis , amphiphile , carbon black , yield (engineering) , cobalt , deprotonation , density functional theory , carbon fibers , polymer chemistry , inorganic chemistry , organic chemistry , electrochemistry , computational chemistry , copolymer , polymer , thermodynamics , electrode , ion , natural rubber , physics , materials science , composite material , composite number

We have prepared the amphiphilic molecular catalyst [Co III (L OC 18 )(pyrr) 2 ]ClO 4 (1), where L OC 18 is the deprotonated form of N, N'-[4,5-bis(octadecyloxy)-1,2-phenylene]dipicolinamide. Species 1 can be anchored onto a carbon black support to yield the assembly 1@CB, which can catalyze water oxidation at an affordable onset overpotential of 0.32 V, with a current density of 10 mA/cm 2 at 0.37 V. Moreover, 1@CB displays TOF = 3850 h -1 . A mechanism is proposed based on the experimental and density-functional-theory-calculated data.

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