Wenchao Sheng
University of Delaware
45 Papers
114 Citations
Wenchao Sheng is an academic researcher from University of Delaware. The author has contributed to research in topics: Catalysis & Chemistry. The author has an hindex of 24, co-authored 38 publications. Previous affiliations of Wenchao Sheng include Japan Advanced Institute of Science and Technology & University of California, Riverside.
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Papers
Hydrogen Oxidation and Evolution Reaction Kinetics on Platinum: Acid vs Alkaline Electrolytes
TL;DR: In this article, the Butler-Volmer equation was fitted to the HOR/HER exchange current densities on polycrystalline platinum and high surface area carbon-supported platinum nanoparticles using rotating disk electrode (RDE) measurements.
Efficient water oxidation using nanostructured α-nickel-hydroxide as an electrocatalyst.
TL;DR: The results suggest the possibility for the development of effective and robust OER electrocatalysts by using cheap and easily prepared α-Ni(OH)2 to replace the expensive commercial catalysts such as RuO2 or IrO2.
1.2K
Correlating the hydrogen evolution reaction activity in alkaline electrolytes with the hydrogen binding energy on monometallic surfaces
TL;DR: In this paper, the authors demonstrate that the HER exchange current density in alkaline solutions can be correlated with calculated hydrogen binding energy (HBE) on the metal surfaces via a volcano type of relationship.
991
Instability of Supported Platinum Nanoparticles in Low-Temperature Fuel Cells
TL;DR: In this article, the surface area loss of supported platinum (Pt) electrocatalysts in low-temperature fuel cells was discussed and it was argued that submonolayer dissolution of Pt nanoparticles governs the surface loss at high voltages by increasing the loss of Pt from carbon and coarsening of Pt on carbon.
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Correlating hydrogen oxidation and evolution activity on platinum at different pH with measured hydrogen binding energy.
TL;DR: The correlation between hydrogen oxidation/evolution activity and experimentally measured hydrogen binding energy for polycrystalline platinum examined in several buffer solutions in a wide range of electrolyte pH is reported, strongly supporting the hypothesis that hydrogen binding power is the sole reaction descriptor for the hydrogen oxidation-evolution reaction on monometallic platinum.