Synthesis of Palladium–Tungsten Metallene-Constructed Sandwich-Like Nanosheets as Bifunctional Catalysts for Direct Formic Acid Fuel Cells
Source abstract
Abstract
Although great efforts have been made over past decades, it is very challenging to develop advanced bifunctional electrocatalysts for direct formic acid fuel cells. Herein, we report the preparation of PdW metallene-constructed sandwich-like nanosheets (S-PdW NSs) via a facile wet-chemical method. This nanostructure shows excellent electrocatalytic activity and durability in both formic acid oxidation and oxygen reduction reactions. The remarkable enhancement of catalytic activity could be mainly attributed to its unique metallene-constructed sandwich-like nanosheets, whose layered structure could provide appropriate distances at the atomic scale close to the diameter of oxygen and formic acid molecules to realize bridge adsorption. The significantly improved durability could be due to the modification of the electronic structure of Pd via the introduction of W into the Pd lattice to generate strong bonding interactions. This work offers a low-Pd-loading, highly active, and stable bifunctional catalyst for direct formic acid fuel cells.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electrocatalysts for Energy Conversion · Fuel Cells and Related Materials · Advanced battery technologies research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies, Institute for Clean Energy and Advanced Materials, Southwest University, Chongqing 400715, P. R. China
State Key Laboratory of Trauma, Burn and Combined Injury, Third Military Medical University, Chongqing 400038, P. R. China
College of Landscape Architecture and Life Science, Chongqing University of Arts and Sciences, Chongqing 402160, P. R. China
Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, P. R. China
Funding
State Key Laboratory of Trauma, Burns and Combined Injury · Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies
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