English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Publisher's PDFUnderstanding how pH affects the activity of hydrogen oxidation reaction (HOR) and hydrogen evolution reaction(HER) is key to developing active, stable, and affordable HOR/HER catalysts for hydroxide exchange membrane fuelcells and electrolyzers. A common linear correlation between hydrogen binding energy (HBE) and pH is observedfor four supported platinum-group metal catalysts (Pt/C, Ir/C, Pd/C, and Rh/C) over a broad pH range (0 to 13),suggesting that the pH dependence of HBE is metal-independent. A universal correlation between exchange currentdensity and HBE is also observed on the four metals, indicating that they may share the same elementary stepsand rate-determining steps and that the HBE is the dominant descriptor for HOR/HER activities. The onset potentialof CO stripping on the four metals decreases with pH, indicating a stronger OH adsorption, which provides evidenceagainst the promoting effect of adsorbed OH on HOR/HER.University of Delaware. Department of Chemical & Biomolecular Engineering.University of Delaware. Center for Catalytic Science & Technology

Universal dependence of hydrogen oxidation and evolution reaction activity of platinum-group metals on pH and hydrogen binding energy