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Wire-like Pt on mesoporous Ti0.7W0.3O2 Nanomaterial with Compelling Electro-Activity for Effective Alcohol Electro-Oxidation.

ABSTRACT: 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)/Ti0.7W0.3O2 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/Ti0.7W0.3O2 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/Ti0.7W0.3O2 electrocatalyst exhibited the lower onset potential (~0.1?V for MOR and ~0.2 for EOR), higher mass activity (~355.29?mA/mgPt for MOR and ~325.01?mA/mgPt for EOR) and much greater durability. The outperformance of the Pt NWs/Ti0.7W0.3O2 electrocatalyst is ascribable to the merits of the anisotropic one-dimensional Pt nanostructure and the mesoporous Ti0.7W0.3O2 support along with the synergistic effects between the Ti0.7W0.3O2 support and the Pt nanocatalyst. Furthermore, this approach may provide a promising catalytic platform for fuel cell technology and a variety of applications.

SUBMITTER: Pham HQ 

PROVIDER: S-EPMC6794307 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature

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Wire-like Pt on mesoporous Ti<sub>0.7</sub>W<sub>0.3</sub>O<sub>2</sub> Nanomaterial with Compelling Electro-Activity for Effective Alcohol Electro-Oxidation.

Pham Hau Quoc HQ   Huynh Tai Thien TT   Mai Anh Tram Ngoc ATN   Ngo Thang Manh TM   Bach Long Giang LG   Ho Van Thi Thanh VTT  

Scientific reports 20191015 1

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<sub>0.7</sub>W<sub>0.3</sub>O<sub>2</sub> 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 usi  ...[more]

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