Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 140, Issue 15, Pages 5118-5126Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.7b12968
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Funding
- National Basic Research Program of China [2015CB932304, 2016YFA0202603]
- NSFC [91645104]
- Science and Technology Program of Guangzhou [201704030019]
- Natural Science Foundation of Guangdong Province [2016A010104004, 2017A010103007]
- Guangdong Science and Technology Innovation Leading Talent Fund [2016TX03N187]
- Fundamental Research Fund for the Central Universities [16lgjc67]
- High School Talent Program of China
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The search for high active, stable, and cost-efficient hydrogen evolution reaction (HER) electrocatalysts for water electrolysis has attracted great interest. The coordinated water molecules in the hydronium ions will obviously reduce the positive charge density of H+ and hamper the ability of H+ to receive electrons from the cathode, leading to large overpotential of HER on nonprecious metal catalysts. Here we realize Pt-like hydrogen evolution electrocatalysis on polyaniline (PANT) nanodots (NDs)-decorated CoP hybrid nanowires (HNWs) supported on carbon fibers (CFs) (PANI/CoP HNWs-CFs) as PANI can effectively capture H+ from hydronium ions to form protonated amine groups that have higher positive charge density than those of hydronium ions and can be electro-reduced easily. The PANI/CoP HNWs-CFs as low-cost electrocatalysts show excellent catalytic performance toward HER in acidic solution, such as super high catalytic activity, small Tafel slope, and superior stability.
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