NDLI: Morphology–activity correlation in hydrogen evolution catalyzed by cobalt sulfides

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High performance electrochemical capacitor materials focusing on nickel based materials

Noble metal plasmonic nanostructure related chromisms

Enhancing the photoluminescence quantum yields of blue-emitting cationic iridium(iii) complexes bearing bisphosphine ligands

Cobalt nitrides as a class of metallic electrocatalysts for the oxygen evolution reaction

Designing structurally tunable and functionally versatile synthetic supercontainers

N-Heterocyclic carbene adducts to [Cp′FeI]₂: synthesis and molecular and electronic structure

Mechanochromic Cu(i) boron imidazolate frameworks with low-dimensional structures and reducing function

Synthesis and photophysical properties of multi-Ru²⁺ terpyridine complexes: from di-nuclear linear to star-shaped hexa-nuclear architectures

A terahertz absorption spectroscopy study of structural changes in d-penicillaminato CuI8CuII6 clusters induced by water desorption

Morphology–activity correlation in hydrogen evolution catalyzed by cobalt sulfides

3d transition metal complexes with a julolidine–quinoline based ligand: structures, spectroscopy and optical properties

Functionalization of reduced graphene oxide with axially-coordinated metal-porphyrins: facile syntheses and temporally-dependent nonlinear optical properties

Synthesis, crystal and electronic structure, and optical properties of two new chalcogenide-iodides: Ba₃Q₄I₂ (Q = S, Se)

Assembled 3D electrocatalysts for efficient hydrogen evolution: WSe₂ layers anchored on graphene sheets

Mixed-anion templated cage-like lanthanide clusters: Gd₂₇ and Dy₂₇

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Inorganic Chemistry Frontiers Vol -2

Inorganic Chemistry Frontiers Vol -1

Morphology–activity correlation in hydrogen evolution catalyzed by cobalt sulfides

Content Provider	Royal Society of Chemistry (RSC)
Author	Jiang, Nan You, Bo Sun, Yujie
Copyright Year	2016
Abstract	Transition metal chalcogenides such as cobalt sulfides (CoS) have recently attracted significant interest in electrocatalytic hydrogen evolution reaction (HER). In addition to the constituent elements and hence intrinsic activity, the morphology, porosity, and specific surface area of a nanostructured catalyst would substantially impact its overall electrocatalytic performance. In this paper, we report a facile and rapid two-step microwave-assisted anion-exchange route to prepare nanostructured CoS. By simply controlling the microwave sulfurization time, CoS of various morphologies such as hollow prisms, broken prisms, and nanoparticles could be obtained. Importantly, the correlation between morphology and HER activity of CoS in neutral water was systematically studied through a set of material characterization and electrochemical techniques. It's revealed that the morphology of CoS changed from hollow nanoprisms to 3D nanoparticles when increasing the microwave sulfurization time from 5 to 60 min. The results demonstrated that CoS with 3D nanoparticle morphology, prepared by microwave sulfurization of 30 min, possessed the largest specific surface area and electrochemically active surface area. These nanostructured features resulted in the promoted accessibility of active sites, enhanced mass/charge transport and easier release of hydrogen bubbles, rendering its highest HER activity and excellent stability and showing small overpotentials of 233, 314, and 364 mV to achieve current densities of 10, 50, and 100 mA cm−2, respectively, in neutral water.
Starting Page	279
Ending Page	285
Page Count	7
File Format	HTM / HTML PDF
ISSN	20521553
Volume Number	3
Issue Number	2
Journal	Inorganic Chemistry Frontiers
DOI	10.1039/c5qi00196j
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Transition metal Cobalt Hydrogen Intrinsic activity Porosity Specific surface area Microwave Electrochemistry Three-dimensional space Nanoparticle
Content Type	Text
Resource Type	Article
Subject	Inorganic Chemistry

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Three-dimensional tetsubo-like Co(OH)₂ nanorods on a macroporous electrically conductive network as an efficient electroactive framework for the hydrogen evolution reaction

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Recent Advances in Metal-Nanoparticle-Catalyzed Coupling Reactions Assisted by Microwave Irradiation

Basal-Plane Catalytic Activity of Layered Metallic Transition Metal Ditellurides for the Hydrogen Evolution Reaction

Hydrogen evolution catalyzed by a cobalt complex containing an asymmetric Schiff-base ligand

Two-level porosity electrodes from metal-polymer dispersions

Morphology–activity correlation in hydrogen evolution catalyzed by cobalt sulfides

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