Compositional dependence of structures and hydrogen evolution reaction activity of platinum-group-metal quinary RuRhPdIrPt alloy nanoparticles
Yuto Maruta, Kohei Kusada, Dongshuang Wu, Tomokazu Yamamoto, Takaaki Toriyama, Syo Matsumura, Okkyun Seo, Satoshi Yasuno, Shogo Kawaguchi, Osami Sakata, Yoshiki Kubota, Hiroshi Kitagawa
Abstract
Platinum-group-metal quinary RuRhPdIrPt alloy nanoparticles were synthesised with compositions slightly away from equimolar, and their crystal and electronic structures were investigated. Their lattice constant changed linearly with composition, while the d-band centre changed nonlinearly. Their catalytic activities for the hydrogen evolution reaction were not correlated with their d-band centre.
Topics & Concepts
QuinaryAlloyMetalPlatinumLattice constantCatalysisNanoparticlePlatinum groupHydrogenCrystal structureMaterials scienceChalcogenideChemistryCrystallographyInorganic chemistryPhysical chemistryNanotechnologyMetallurgyDiffractionOrganic chemistryPhysicsOpticsElectrocatalysts for Energy ConversionHigh Entropy Alloys Studiesnanoparticles nucleation surface interactions