Silica–Polypyrrole Hybrids as High‐Performance Metal‐Free Electrocatalysts for the Hydrogen Evolution Reaction in Neutral Media
- 13 June 2017
- journal article
- research article
- Published by Wiley in Angewandte Chemie-International Edition
- Vol. 56 (28), 8120-8124
- https://doi.org/10.1002/anie.201702934
Abstract
Constructing inorganic–organic hybrids with superior properties in terms of water adsorption and activation will lead to catalysts with significantly enhanced electrocatalytic activity in the hydrogen evolution reaction (HER) in environmentally benign neutral media. Herein, we report SiO2–polypyrrole (PPy) hybrid nanotubes supported on carbon fibers (CFs) (SiO2 /PPy NTs–CFs) as inexpensive and high-performance electrocatalysts for the HER in neutral media. Because of the strong electronic interactions between SiO2 and PPy, the SiO2 uniquely serves as the centers for water adsorption and activation, and accordingly promotes the HER. The metal-free SiO2 /PPy NTs–CFs displayed high catalytic activity in the HER in neutral media, such as a low onset potential and small Tafel slope, as well as excellent long-term durability.Keywords
Funding Information
- National Natural Science Foundation of China (91645104)
- Natural Science Foundation of Guangdong Province (S2013020012833 and 2016A010104004)
This publication has 47 references indexed in Scilit:
- Precise tuning in platinum-nickel/nickel sulfide interface nanowires for synergistic hydrogen evolution catalysisNature Communications, 2017
- Hollow Chevrel‐Phase NiMo3S4 for Hydrogen Evolution in Alkaline ElectrolytesAngewandte Chemie, 2016
- Hollow Chevrel‐Phase NiMo3S4 for Hydrogen Evolution in Alkaline ElectrolytesAngewandte Chemie-International Edition, 2016
- Contributions of Phase, Sulfur Vacancies, and Edges to the Hydrogen Evolution Reaction Catalytic Activity of Porous Molybdenum Disulfide NanosheetsJournal of the American Chemical Society, 2016
- Hollow Cobalt-Based Bimetallic Sulfide Polyhedra for Efficient All-pH-Value Electrochemical and Photocatalytic Hydrogen EvolutionJournal of the American Chemical Society, 2016
- Metallic WO2–Carbon Mesoporous Nanowires as Highly Efficient Electrocatalysts for Hydrogen Evolution ReactionJournal of the American Chemical Society, 2015
- Porous molybdenum carbide nano-octahedrons synthesized via confined carburization in metal-organic frameworks for efficient hydrogen productionNature Communications, 2015
- Ultrathin platinum nanowires grown on single-layered nickel hydroxide with high hydrogen evolution activityNature Communications, 2015
- Decoration of size-tunable CuO nanodots on TiO2 nanocrystals for noble metal-free photocatalytic H2 productionNanoscale, 2014
- Self-Supported Nanoporous Cobalt Phosphide Nanowire Arrays: An Efficient 3D Hydrogen-Evolving Cathode over the Wide Range of pH 0–14Journal of the American Chemical Society, 2014