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Electrochemical Water Oxidation in Acidic Solution Using Titanium Diboride (TiB_2) Catalyst

Kirshenbaum, Maxine J. and Richter, Matthias H. and Dasog, Mita (2019) Electrochemical Water Oxidation in Acidic Solution Using Titanium Diboride (TiB_2) Catalyst. ChemCatChem, 11 (16). pp. 3877-3881. ISSN 1867-3880. https://resolver.caltech.edu/CaltechAUTHORS:20190328-180954882

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Abstract

Electrochemical water oxidation is an important anodic process necessary to support many cathodic fuel forming processes. Inexpensive materials capable of water oxidation catalysis are necessary to render renewable energy technologies affordable. In this study, titanium diboride (TiB_2) microparticles were explored as an oxygen‐evolution reaction (OER) electrocatalyst in 1.0 M HClO_4. An overpotential of 560±20 mV was required to generate a current density of 10 mA cm^(−2) with a Faradaic efficiency >96 %. TiB_2 exhibited a dissolution rate of 0.24 μg cm^(−2) h^(−1) which is the slowest rate observed to date for an earth‐abundant OER catalyst in acidic electrolyte at pH 0.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1002/cctc.201801736DOIArticle
ORCID:
AuthorORCID
Richter, Matthias H.0000-0003-0091-2045
Dasog, Mita0000-0002-7846-3414
Alternate Title:Electrochemical Water Oxidation in Acidic Solution Using Titanium Diboride (TiB2) Catalyst
Additional Information:© 2019 Wiley‐VCH. Issue Online: 28 August 2019; Version of Record online: 15 January 2019; Accepted manuscript online: 18 December 2018; Manuscript revised: 17 December 2018; Manuscript received: 25 October 2018. The authors acknowledge funding from the Natural Sciences and Engineering Research Council of Canada (NSERC), the Canada Foundation for Innovation (CFI), and Dalhousie University. Patricia Scallion and the Clean Technologies Research Institute provided access to, and assistance with, the SEM analysis. We acknowledge support from the Beckman Institute of the California Institute of Technology to the Molecular Materials Research Center. The authors declare no conflict of interest.
Funders:
Funding AgencyGrant Number
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Canada Foundation for InnovationUNSPECIFIED
Dalhousie UniversityUNSPECIFIED
Caltech Beckman InstituteUNSPECIFIED
Subject Keywords:Water-splitting; catalysis; renewable energy; electrochemistry; borides
Issue or Number:16
Record Number:CaltechAUTHORS:20190328-180954882
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190328-180954882
Official Citation:M. J. Kirshenbaum, M. H. Richter, M. Dasog, ChemCatChem 2019, 11, 3877; https://doi.org/10.1002/cctc.201801736.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:94277
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:29 Mar 2019 19:59
Last Modified:08 Oct 2019 22:21

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