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Hierarchical coral-like NiMoS nanohybrids as highly efficient bifunctional electrocatalysts for overall urea electrolysis
journal contribution
posted on 2018-02-01, 00:00 authored by X Wang, Jianmei Wang, X Sun, S Wei, L Cui, Wenrong YangWenrong Yang, J LiuNovel hierarchical coral-like Ni-Mo sulfides on Ti mesh (denoted as HC-NiMoS/Ti) were synthesized through facile hydrothermal and subsequent sulfuration processes without any template. These non-precious HC-NiMoS/Ti hybrids were explored as bifunctional catalysts for urea-based overall water splitting, including the anodic urea oxygen evolution reaction (UOR) and cathodic hydrogen evolution reaction (HER). Due to the highly exposed active sites, excellent charge transfer ability, and good synergistic effects from multi-component reactions, the HC-NiMoS/Ti hybrid exhibited superior activity and high stability, and only a cell voltage of 1.59 V was required to deliver 10 mA·cm –2 current density in an electrolyte of 1.0 M KOH with 0.5 M urea. [Figure not available: see fulltext.]
History
Journal
Nano researchVolume
11Issue
2Pagination
988 - 996Publisher
SpringerLocation
Berlin, GermanyPublisher DOI
ISSN
1998-0124eISSN
1998-0000Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2017, Tsinghua University Press and Springer-Verlag Berlin HeidelbergUsage metrics
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No categories selectedKeywords
urea electrolysisNi-Mo sulfidebifunctional catalystsScience & TechnologyPhysical SciencesTechnologyChemistry, PhysicalNanoscience & NanotechnologyMaterials Science, MultidisciplinaryPhysics, AppliedChemistryScience & Technology - Other TopicsMaterials SciencePhysicscoral-likesuperior activityHYDROGEN EVOLUTION REACTIONNANOWIRE ARRAYSNI FOAMCATALYSTSNICKELELECTROOXIDATIONNANOSHEETSMOS2GRAPHENEOXYGEN
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