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

Abstract

We have prepared the amphiphilic molecular catalyst [CoIII(LOC18)(pyrr)2]ClO4, where LOC18 is the deprotonated form of N,N'-[4,5-bis(octadecyloxy)-1,2- phenylene]dipicolinamide. Species 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/cm2 at 0.37 V. Furthermore, 1@CB displays TOF = 3850 h–1. A mechanism is proposed based on the experimental and density-functionaltheory- calculated data.

Authors:
 [1];  [1];  [1];  [1];  [1]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [1]
  1. Wayne State Univ., Detroit, MI (United States)
  2. Argonne National Lab. (ANL), Lemont, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1476901
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Inorganic Chemistry
Additional Journal Information:
Journal Volume: 57; Journal Issue: 16; Journal ID: ISSN 0020-1669
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Water oxidation; cobalt; molecular catalysts; redox-active ligand

Citation Formats

Baydoun, Habib, Burdick, Jordyn, Thapa, Bishnu, Wickramasinghe, Lanka, Li, Da, Niklas, Jens, Poluektov, Oleg G., Schlegel, H. Bernhard, and Verani, Cláudio N. Immobilization of an Amphiphilic Molecular Cobalt Catalyst on Carbon Black for Ligand-Assisted Water Oxidation. United States: N. p., 2018. Web. doi:10.1021/acs.inorgchem.7b03252.
Baydoun, Habib, Burdick, Jordyn, Thapa, Bishnu, Wickramasinghe, Lanka, Li, Da, Niklas, Jens, Poluektov, Oleg G., Schlegel, H. Bernhard, & Verani, Cláudio N. Immobilization of an Amphiphilic Molecular Cobalt Catalyst on Carbon Black for Ligand-Assisted Water Oxidation. United States. https://doi.org/10.1021/acs.inorgchem.7b03252
Baydoun, Habib, Burdick, Jordyn, Thapa, Bishnu, Wickramasinghe, Lanka, Li, Da, Niklas, Jens, Poluektov, Oleg G., Schlegel, H. Bernhard, and Verani, Cláudio N. Mon . "Immobilization of an Amphiphilic Molecular Cobalt Catalyst on Carbon Black for Ligand-Assisted Water Oxidation". United States. https://doi.org/10.1021/acs.inorgchem.7b03252. https://www.osti.gov/servlets/purl/1476901.
@article{osti_1476901,
title = {Immobilization of an Amphiphilic Molecular Cobalt Catalyst on Carbon Black for Ligand-Assisted Water Oxidation},
author = {Baydoun, Habib and Burdick, Jordyn and Thapa, Bishnu and Wickramasinghe, Lanka and Li, Da and Niklas, Jens and Poluektov, Oleg G. and Schlegel, H. Bernhard and Verani, Cláudio N.},
abstractNote = {We have prepared the amphiphilic molecular catalyst [CoIII(LOC18)(pyrr)2]ClO4, where LOC18 is the deprotonated form of N,N'-[4,5-bis(octadecyloxy)-1,2- phenylene]dipicolinamide. Species 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/cm2 at 0.37 V. Furthermore, 1@CB displays TOF = 3850 h–1. A mechanism is proposed based on the experimental and density-functionaltheory- calculated data.},
doi = {10.1021/acs.inorgchem.7b03252},
journal = {Inorganic Chemistry},
number = 16,
volume = 57,
place = {United States},
year = {2018},
month = {5}
}

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Free Publicly Available Full Text
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Figures / Tables:

Figure 1 Figure 1: (a) The CV of [CoIII(LOC18)(pyrr)2]ClO4 (1mM) in CH2Cl2. TBAPF6 supporting electrolyte, glassy carbon (WE), Ag/AgCl (RE), Pt wire (AE).

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