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Wire-like Pt on mesoporous Ti(0.7)W(0.3)O(2) Nanomaterial with Compelling Electro-Activity for Effective Alcohol Electro-Oxidation

Finding out robust active and sustainable catalyst towards alcohol electro-oxidation reaction is major challenges for large-scale commercialization of direct alcohol fuel cells. Herein, a robust Pt nanowires (NWs)/Ti(0.7)W(0.3)O(2) electrocatalyst, as the coherency of using non-carbon catalyst suppo...

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Detalles Bibliográficos
Autores principales: Pham, Hau Quoc, Huynh, Tai Thien, Mai, Anh Tram Ngoc, Ngo, Thang Manh, Bach, Long Giang, Ho, Van Thi Thanh
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6794307/
https://www.ncbi.nlm.nih.gov/pubmed/31616003
http://dx.doi.org/10.1038/s41598-019-51235-4
Descripción
Sumario:Finding out robust active and sustainable catalyst towards alcohol electro-oxidation reaction is major challenges for large-scale commercialization of direct alcohol fuel cells. Herein, a robust Pt nanowires (NWs)/Ti(0.7)W(0.3)O(2) electrocatalyst, as the coherency of using non-carbon catalyst support and controlling the morphology and structure of the Pt nanocatalyst, was fabricated via an effortless chemical reduction reaction approach at room temperature without using surfactant/stabilizers or template to assemble an anodic electrocatalyst towards methanol electro-oxidation reaction (MOR) and ethanol electro-oxidation reaction (EOR). These observational results demonstrated that the Pt NWs/Ti(0.7)W(0.3)O(2) electrocatalyst is an intriguing anodic electrocatalyst, which can alter the state-of-the-art Pt NPs/C catalyst. Compared with the conventional Pt NPs/C electrocatalyst, the Pt NWs/Ti(0.7)W(0.3)O(2) electrocatalyst exhibited the lower onset potential (~0.1 V for MOR and ~0.2 for EOR), higher mass activity (~355.29 mA/mg(Pt) for MOR and ~325.01 mA/mg(Pt) for EOR) and much greater durability. The outperformance of the Pt NWs/Ti(0.7)W(0.3)O(2) electrocatalyst is ascribable to the merits of the anisotropic one-dimensional Pt nanostructure and the mesoporous Ti(0.7)W(0.3)O(2) support along with the synergistic effects between the Ti(0.7)W(0.3)O(2) support and the Pt nanocatalyst. Furthermore, this approach may provide a promising catalytic platform for fuel cell technology and a variety of applications.