Platinum nanocluster catalysts supported on Marimo carbon via scalable dry deposition synthesis.

ABSTRACT: The development of efficient fuel cells greatly promotes reducing the consumption of fossil energy, and it is crucial to enhance the platinum (Pt) catalytic activity by optimizing both the nanoparticle size and support effect. In this study, we generate a smaller and uniform size of naked Pt nanocluster (NC) catalysts via a dry process in the gas phase, and using the direct powder embedded trapping method, the Pt NCs are spatioselectively supported on Marimo carbon (MC) that comprises a high density of carbon nanofilaments. At a minimum Pt loading of 0.05 mg_Pt cm^-2 for both the anode and cathode in a single cell configuration, a membrane-electrode assembly (MEA) formed by the dry-deposition Pt-NC(d)/MC exhibits superior power density (rated) of 0.

SUBMITTER: Hirata N 

PROVIDER: S-EPMC9044432 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature