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Title: In situ investigation on ultrafast oxygen evolution reactions of water splitting in proton exchange membrane electrolyzer cells

Journal Article · · Journal of Materials Chemistry. A
DOI: https://doi.org/10.1039/C7TA05681H · OSTI ID:1393373
ORCiD logo [1]; ORCiD logo [1];  [1];  [1];  [2];  [3];  [4];  [5];  [5]; ORCiD logo [6]; ORCiD logo [1]
  1. Univ. of Tennessee, Knoxville, Tullahoma, TN (United States). Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Biosciences and Center for Nanophase Materials Science Divisions
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Energy and Transportation Sciences Division
  5. National Renewable Energy Lab. (NREL), Golden, CO (United States). Materials and Chemical Science and Technolog
  6. National Renewable Energy Lab. (NREL), Golden, CO (United States). Mechanical and Thermal Engineering Sciences

We present that the oxygen evolution reaction (OER) is a half reaction in electrochemical devices, including low-temperature water electrolysis, which is considered as one of the most promising methods to generate hydrogen/oxygen for the storage of energy. It is affected by many factors, and its mechanism is still not completely understood. A proton exchange membrane electrolyzer cell (PEMEC) with optical access to the surface of anode catalyst layer (CL) coupled with a distinguished high-speed and micro-scale visualization system (HMVS) was developed to in situ investigate OERs. It was revealed in real time that OERs only occur on the anode CL adjacent to liquid/gas diffusion layer (LGDL). The CL electrical conductivity plays a crucial role in OERs on CLs. The large in-plane electrical resistance of CLs becomes a threshold of OERs over the entire CL, and causes a lot of catalyst waste in the middle of LGDL pores. Moreover, the oxygen bubble nucleation, growth, and detachment and the effect of current density on those processes were also characterized. Here, this study proposes a new approach for better understanding the mechanisms of OERs and optimizing the design and fabrication of membrane electrode assemblies.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
AC36-08GO28308; FE0011585
OSTI ID:
1393373
Report Number(s):
NREL/JA--5900-70048
Journal Information:
Journal of Materials Chemistry. A, Journal Name: Journal of Materials Chemistry. A Journal Issue: 35 Vol. 5; ISSN JMCAET; ISSN 2050-7488
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

References (46)

Vertically Oriented Polymer Electrolyte Nanofiber Catalyst Support for Thin Film Proton-Exchange Membrane Fuel Cell Electrodes journal August 2015
Mathematical modeling of high-pressure PEM water electrolysis journal November 2009
Design and performance of a solid polymer electrolyte water electrolyzer journal February 1996
Electrochemical activity of ruthenium and iridium based catalysts for oxygen evolution reaction journal January 2012
Bubble evolution on vertical electrodes under extreme current densities journal September 2005
Study of IrxRu1−xO2 oxides as anodic electrocatalysts for solid polymer electrolyte water electrolysis journal November 2009
Iridium–ruthenium single phase mixed oxides for oxygen evolution: Composition dependence of electrocatalytic activity journal May 2012
Effects of membrane electrode assembly properties on two-phase transport and performance in proton exchange membrane electrolyzer cells journal January 2016
Pure hydrogen production by PEM electrolysis for hydrogen energy journal February 2006
Numerical modeling of three-dimensional two-phase gas–liquid flow in the flow field plate of a PEM electrolysis cell journal April 2010
Evaluation and calculation on the efficiency of a water electrolysis system for hydrogen production journal October 2010
A comprehensive review on PEM water electrolysis journal April 2013
Two-phase flow in a proton exchange membrane electrolyzer visualized in situ by simultaneous neutron radiography and optical imaging journal May 2013
Electrochemical performance modeling of a proton exchange membrane electrolyzer cell for hydrogen energy journal June 2015
Electrochemical investigation of stainless steel corrosion in a proton exchange membrane electrolyzer cell journal September 2015
Modelling and simulation of a proton exchange membrane (PEM) electrolyser cell journal October 2015
Additive manufacturing of liquid/gas diffusion layers for low-cost and high-efficiency hydrogen production journal January 2016
Additive manufactured bipolar plate for high-efficiency hydrogen production in proton exchange membrane electrolyzer cells journal May 2017
Performance of a metallic gas diffusion layer for PEM fuel cells journal January 2008
PEM electrolysis for production of hydrogen from renewable energy sources journal May 2005
Direct Visualization of Solid Electrolyte Interphase Formation in Lithium-Ion Batteries with In Situ Electrochemical Transmission Electron Microscopy journal July 2014
A New Class of Electrocatalysts for Hydrogen Production from Water Electrolysis: Metal Monolayers Supported on Low-Cost Transition Metal Carbides journal February 2012
A selective and efficient electrocatalyst for carbon dioxide reduction journal January 2014
Non-precious metal electrocatalysts with high activity for hydrogen oxidation reaction in alkaline electrolytes journal January 2014
Enhanced photoelectrochemical water-splitting performance of semiconductors by surface passivation layers journal January 2014
Toward the rational design of non-precious transition metal oxides for oxygen electrocatalysis journal January 2015
3-Dimensional porous N-doped graphene foam as a non-precious catalyst for the oxygen reduction reaction journal January 2015
A comparative technoeconomic analysis of renewable hydrogen production using solar energy journal January 2016
Band engineering of perovskite-type transition metal oxynitrides for photocatalytic overall water splitting journal January 2016
Rapid prototyping of electrolyzer flow field plates journal January 2016
Investigation of thin/well-tunable liquid/gas diffusion layers exhibiting superior multifunctional performance in low-temperature electrolytic water splitting journal January 2017
Nanostructured catalysts for electrochemical water splitting: current state and prospects journal January 2016
A review on noble-metal-free bifunctional heterogeneous catalysts for overall electrochemical water splitting journal January 2016
Highly efficient high temperature electrolysis journal January 2008
Monolayer platinum supported on tungsten carbides as low-cost electrocatalysts: opportunities and limitations journal January 2011
High performance robust F-doped tin oxide based oxygen evolution electro-catalysts for PEM based water electrolysis journal January 2013
The fundamentals of bubble evolution journal January 1995
Investigation of a copper etching technique to fabricate metallic gas diffusion media journal September 2006
Discovery of true electrochemical reactions for ultrahigh catalyst mass activity in water splitting journal November 2016
Just a Dream—or Future Reality? journal April 2009
Mask-Patterned Wet Etching of Thin Titanium Liquid/Gas Diffusion Layers for a PEMEC journal August 2015
The Air/Platinum/Nafion Triple-Phase Boundary: Characteristics, Scaling, and Implications for Fuel Cells journal January 2004
Visualization of Liquid Water Transport in a PEFC journal January 2004
Liquid Water Removal from a Polymer Electrolyte Fuel Cell journal January 2006
In Situ Characterization of the Catalyst Layer in a Polymer Electrolyte Membrane Fuel Cell journal January 2007
Initial Performance and Durability of Ultra-Low Loaded NSTF Electrodes for PEM Electrolyzers journal January 2012

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Polymer Electrolyte Water Electrolysis: Correlating Porous Transport Layer Structural Properties and Performance: Part I. Tomographic Analysis of Morphology and Topology text January 2019
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