ZIF 67 Based Highly Active Electrocatalysts as Oxygen Electrodes in Water Electrolyzer

Shraboni Ghoshal; Katherine Hurst; Bryan Pivovar; Shaun Alia; Sarah Zaccarine; Svitlana Pylypenko; Grace Anderson; Madison Martinez

doi:10.1021/acsaem.9b00733

ZIF 67 Based Highly Active Electrocatalysts as Oxygen Electrodes in Water Electrolyzer

Shraboni Ghoshal, Katherine Hurst, Bryan Pivovar, Shaun Alia, Sarah Zaccarine, Svitlana Pylypenko, Grace Anderson, Madison Martinez

Chemistry and Nanoscience

Colorado School of Mines

Research output: Contribution to journal › Article › peer-review

52 Scopus Citations

Abstract

Mitigating high overpotential losses originating from the sluggish oxygen evolution reaction (OER) during water electrolysis is key to establishing a sustainable hydrogen generation technique. Herein we report a Co-imidazolate framework (ZIF 67) as an OER catalyst that exhibits high activity in both a three electrode cell and an electrolyzer. Additionally, Fe, Ni, and Zn have been incorporated into ZIF 67 to evaluate their effects on the OER activity of ZIF 67. Due to the high charge conductivity of ZIF 67, none of the reported catalyst was carbonized at high temperature, a process that is generally accompanied by significant mass loss. Hence, in addition to being highly active, these catalysts are scalable which makes them promising candidates for application in commercial power markets.

Original language	American English
Pages (from-to)	5568-5576
Number of pages	9
Journal	ACS Applied Energy Materials
Volume	2
Issue number	8
DOIs	https://doi.org/10.1021/acsaem.9b00733 https://doi.org/10.1021/acsaem.9b00733
State	Published - 26 Aug 2019

Bibliographical note

Publisher Copyright:
© 2019 American Chemical Society.

NREL Publication Number

NREL/JA-5900-74149

Keywords

AEM electrolysis
metal organic framework
non-precious-metal catalyst
oxygen evolution reaction
ZIF 67

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title = "ZIF 67 Based Highly Active Electrocatalysts as Oxygen Electrodes in Water Electrolyzer",

abstract = "Mitigating high overpotential losses originating from the sluggish oxygen evolution reaction (OER) during water electrolysis is key to establishing a sustainable hydrogen generation technique. Herein we report a Co-imidazolate framework (ZIF 67) as an OER catalyst that exhibits high activity in both a three electrode cell and an electrolyzer. Additionally, Fe, Ni, and Zn have been incorporated into ZIF 67 to evaluate their effects on the OER activity of ZIF 67. Due to the high charge conductivity of ZIF 67, none of the reported catalyst was carbonized at high temperature, a process that is generally accompanied by significant mass loss. Hence, in addition to being highly active, these catalysts are scalable which makes them promising candidates for application in commercial power markets.",

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AU - Ghoshal, Shraboni

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AU - Pivovar, Bryan

AU - Alia, Shaun

AU - Zaccarine, Sarah

AU - Pylypenko, Svitlana

AU - Anderson, Grace

AU - Martinez, Madison

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AB - Mitigating high overpotential losses originating from the sluggish oxygen evolution reaction (OER) during water electrolysis is key to establishing a sustainable hydrogen generation technique. Herein we report a Co-imidazolate framework (ZIF 67) as an OER catalyst that exhibits high activity in both a three electrode cell and an electrolyzer. Additionally, Fe, Ni, and Zn have been incorporated into ZIF 67 to evaluate their effects on the OER activity of ZIF 67. Due to the high charge conductivity of ZIF 67, none of the reported catalyst was carbonized at high temperature, a process that is generally accompanied by significant mass loss. Hence, in addition to being highly active, these catalysts are scalable which makes them promising candidates for application in commercial power markets.

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ZIF 67 Based Highly Active Electrocatalysts as Oxygen Electrodes in Water Electrolyzer

Abstract

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Keywords

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