2026-04-17T05:17:50Zhttps://recercat.cat/oai/requestoai:recercat.cat:2072/4784942025-05-08T16:04:21Zcom_2072_98col_2072_378192
RECERCAT
author
Wang, Xiang
author
Montaña-Mora, Guillem
author
Han, Xu
author
Yu, Jing
author
Qi, Xueqiang
author
Arbiol i Cobos, Jordi
author
Liang, Zhifu
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Cabot, Andreu
author
Li, Junshan
2023
Altres ajuts: CERCA Programme/Generalitat de CatalunyaThe lack of electrocatalysts for the formate oxidation reaction (FOR) hampers the deployment of direct formate fuel cells (DFFCs). To overcome this limitation, herein, we detail the production of palladium hydride particles supported on CN (PdH@CN) via a facile method. PdH@CN displays excellent FOR performance, reaching current densities up to 5.6 A·mg and stable cycling and chronoamperometric operation. The Pd lattice expands due to the hydrogen intercalation. Besides, an electronic redistribution associated with the distinct electronegativity of Pd and H is observed. Both phenomena modify the electron energy levels, enhancing the activity and stability of the composite catalyst. More specifically, differential functional theory calculations show H intercalation to downshift the Pd d-band center in Pd@CN, weakening adsorbate binding and accelerating the FOR rate-determining step.
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Palladium Hydride on C2N to Boost Formate Oxidation
Article