Partially Oxidized Pd/PdO/CC Catalyst for Hydrogen Production at Anodic and Cathodic in a Formaldehyde & Water Coelectrolysis System DOI Creative Commons
Yan Zhang,

Xinrui Zhu,

Jindong Wu

et al.

Advanced Energy and Sustainability Research, Journal Year: 2025, Volume and Issue: unknown

Published: April 19, 2025

Partial oxidation is a strategic method to optimize catalytic materials, particularly for multifunctional systems. Palladium (Pd), renowned its dual activity in formaldehyde (FOR) and hydrogen evolution reactions (HER), engineered here into partially oxidized Pd/PdO catalyst. This design integrates metallic Pd's conductivity with PdO's oxidative properties, overcoming inherent limitations adsorption electron transfer. The catalyst achieves current density of 50 mA cm −2 at low FOR potential 0.63 V versus reversible electrode, while HER performance remains robust even formaldehyde‐containing electrolytes, maintaining unaltered onset potentials kinetics. Hydrogen sources mapped FOR‐driven generation pathways through situ differential electrochemical mass spectrometry product analysis are conclusively identified. Density functional theory calculations demonstrate that Pd 0 –Pd 2+ interfacial synergy enhances adsorption, partial states (PDOS) analyzes reveal electronic modulation induced by oxidation, rationalizing the improved activity. work not only elucidates bifunctional mechanism but also highlights formaldehyde–water coelectrolysis By bridging material atomic‐level mechanistic insights, study establishes universal framework developing efficient, oxidation‐engineered catalysts sustainable production.

Language: Английский

Partially Oxidized Pd/PdO/CC Catalyst for Hydrogen Production at Anodic and Cathodic in a Formaldehyde & Water Coelectrolysis System DOI Creative Commons
Yan Zhang,

Xinrui Zhu,

Jindong Wu

et al.

Advanced Energy and Sustainability Research, Journal Year: 2025, Volume and Issue: unknown

Published: April 19, 2025

Partial oxidation is a strategic method to optimize catalytic materials, particularly for multifunctional systems. Palladium (Pd), renowned its dual activity in formaldehyde (FOR) and hydrogen evolution reactions (HER), engineered here into partially oxidized Pd/PdO catalyst. This design integrates metallic Pd's conductivity with PdO's oxidative properties, overcoming inherent limitations adsorption electron transfer. The catalyst achieves current density of 50 mA cm −2 at low FOR potential 0.63 V versus reversible electrode, while HER performance remains robust even formaldehyde‐containing electrolytes, maintaining unaltered onset potentials kinetics. Hydrogen sources mapped FOR‐driven generation pathways through situ differential electrochemical mass spectrometry product analysis are conclusively identified. Density functional theory calculations demonstrate that Pd 0 –Pd 2+ interfacial synergy enhances adsorption, partial states (PDOS) analyzes reveal electronic modulation induced by oxidation, rationalizing the improved activity. work not only elucidates bifunctional mechanism but also highlights formaldehyde–water coelectrolysis By bridging material atomic‐level mechanistic insights, study establishes universal framework developing efficient, oxidation‐engineered catalysts sustainable production.

Language: Английский

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