Measurement Techniques for the Study of Thin Film Heterogeneous Water Oxidation Electrocatalysts

By M. Stevens, Lisa J. Enman, Adam S. Batchellor, Monty R. Cosby, Ashlee E. Vise, Christina D. M. Trang, S. Boettcher. 2017

504 citations recorded by the source corpus.

Heterogeneous electrocatalysts for the oxygen evolution reaction (OER) are complicated materials with dynamic structures. They can exhibit potential-induced phase transitions, potential-dependent electronic properties, variable oxidation and protonation states, and disordered local/surface phases. These properties make understanding the OER, and ultimately designing higher efficiency catalysts, challenging. We report a series of procedures and measurement techniques that we have adopted or developed to assess each of the above challenges in understanding materials for the OER. These include the targeted synthesis of hydrated oxyhydroxide phases, the assessment and elimination of electrolyte impurities, the use of a quartz crystal microbalance to monitor film loading and dissolution, and the use of an in situ conductivity measurement to understand the flow of electrons from the catalyst active sites to the conductive support electrode. We end with a recipe for the synthesis and characterization of a “stand...

Subfields: Electrical and Electronic Engineering, Electrochemistry, Renewable Energy, Sustainability and the Environment

View Paper: https://www.semanticscholar.org/paper/79d32b36f72835a5b86175c3607a256879221f58

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Electrical and Electronic Engineering

  1. Ming Yan
  2. Wei Gao

In Renewable Energy, Sustainability and the Environment

  1. Ming Yan
  2. Johnny C. Ho
  3. Y. Qu
  4. Xuemei Zhou

Citations in the corpus