Electrochemical Water Oxidation in Acidic Solution Using Titanium Diboride (TiB_2) Catalyst
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.
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.Attached Files
Published - Kirshenbaum_et_al-2019-ChemCatChem.pdf
Supplemental Material - downloadSupplement_doi=10.1002_2Fcctc.201801736_file=cctc201801736-sup-0001-misc_information.pdf
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Additional details
- Alternative title
- Electrochemical Water Oxidation in Acidic Solution Using Titanium Diboride (TiB2) Catalyst
- Eprint ID
- 94277
- Resolver ID
- CaltechAUTHORS:20190328-180954882
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Canada Foundation for Innovation
- Dalhousie University
- Caltech Beckman Institute
- Created
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2019-03-29Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field