Journal ArticleDOI
When Cubic Cobalt Sulfide Meets Layered Molybdenum Disulfide: A Core–Shell System Toward Synergetic Electrocatalytic Water Splitting
Han Zhu,Junfeng Zhang,Ruoping Yanzhang,Mingliang Du,Qingfa Wang,Guohua Gao,Jiandong Wu,Guangming Wu,Ming Zhang,Bo Liu,Juming Yao,Xiangwen Zhang +11 more
TLDR
A new class of Co9 S8 @MoS2 core-shell structures formed on carbon nanofibers composed of cubic Co 9 S8 as cores and layered MoS2 as shells is described, serving as a bifunctional electrocatalyst for H2 and O2 evolution.Abstract:
A new class of Co9 S8 @MoS2 core-shell structures formed on carbon nanofibers composed of cubic Co9 S8 as cores and layered MoS2 as shells is described. The core-shell design of these nanostructures allows the advantages of MoS2 and Co9 S8 to be combined, serving as a bifunctional electrocatalyst for H2 and O2 evolution.read more
Citations
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Nanomaterials derived from metal–organic frameworks
TL;DR: In this paper, the influence of the morphology of MOF-derived nanostructures on their performance is elucidated, and the opportunities in this field are discussed, as well as the optimization strategies and optimized methods that enable control over the size, morphology, composition and structure of the derived nanomaterials.
Journal ArticleDOI
Etched and doped Co9S8/graphene hybrid for oxygen electrocatalysis
TL;DR: In this paper, an advanced bi-functional electrocatalyst for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) was designed by simultaneously etching and doping a cobalt sulfides-graphene hybrid with NH3-plasma.
Journal ArticleDOI
Hierarchical NiCo2 O4 Hollow Microcuboids as Bifunctional Electrocatalysts for Overall Water-Splitting.
Xuehui Gao,Hongxiu Zhang,Li Quanguo,Xuegong Yu,Zhanglian Hong,Xingwang Zhang,Chengdu Liang,Zhan Lin +7 more
TL;DR: Self-assembled hierarchical NiCo2 O4 hollow microcuboids for overall water splitting including both the HER and OER reactions are reported and the synthesis of NiCo 2 O4 microflowers confirms the importance of structural features for high-performance Overall water splitting.
Journal ArticleDOI
Formation of Hierarchical Co9S8@ZnIn2S4 Heterostructured Cages as an Efficient Photocatalyst for Hydrogen Evolution.
TL;DR: Owing to the distinctive structural and compositional benefits, the hierarchical Co9S8@ZnIn2S4 hollow heterostructures without using any cocatalysts show remarkable activity with a hydrogen-producing rate of 6250 μmol h-1 g-1 and high stability for photocatalytic water splitting.
Journal ArticleDOI
Hierarchical Nanoassembly of MoS2/Co9S8/Ni3S2/Ni as a Highly Efficient Electrocatalyst for Overall Water Splitting in a Wide pH Range.
Yan Yang,Huiqin Yao,Zihuan Yu,Saiful Islam,Saiful Islam,Haiying He,Mengwei Yuan,Yonghai Yue,Kang Xu,Weichang Hao,Genban Sun,Huifeng Li,Shulan Ma,Shulan Ma,Peter Zapol,Mercouri G. Kanatzidis,Mercouri G. Kanatzidis +16 more
TL;DR: The results demonstrate that hierarchical metal sulfides can serve as highly efficient all-pH (pH = 0-14) electrocatalysts for overall water splitting.
References
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Journal ArticleDOI
Enhanced Hydrogen Evolution Catalysis from Chemically Exfoliated Metallic MoS2 Nanosheets
TL;DR: Structural characterization and electrochemical studies confirmed that the nanosheets of the metallic MoS2 polymorph exhibit facile electrode kinetics and low-loss electrical transport and possess a proliferated density of catalytic active sites, which make these metallic nanOSheets a highly competitive earth-abundant HER catalyst.
Journal ArticleDOI
Engineering the surface structure of MoS2 to preferentially expose active edge sites for electrocatalysis
TL;DR: This work engineer the surface structure of MoS(2) to preferentially expose edge sites to effect improved catalysis by successfully synthesizing contiguous large-area thin films of a highly ordered double-gyroid MoS (2) bicontinuous network with nanoscaled pores.
Journal ArticleDOI
Nanostructured Nickel Phosphide as an Electrocatalyst for the Hydrogen Evolution Reaction
Eric J. Popczun,James R. McKone,Carlos G. Read,Adam J. Biacchi,Alex M. Wiltrout,Nathan S. Lewis,Raymond E. Schaak +6 more
TL;DR: The catalytically active Ni2P nanoparticles had among the highest HER activity of any non-noble metal electrocatalyst reported to date, producing H2(g) with nearly quantitative faradaic yield, while also affording stability in aqueous acidic media.
Journal ArticleDOI
Trends in activity for the water electrolyser reactions on 3d M(Ni,Co,Fe,Mn) hydr(oxy)oxide catalysts.
Ram Subbaraman,Dusan Tripkovic,Kee-Chul Chang,Dusan Strmcnik,Arvydas P. Paulikas,Pussana Hirunsit,Maria K. Y. Chan,Jeffrey Greeley,Vojislav R. Stamenkovic,Nenad M. Markovic +9 more
TL;DR: The overall catalytic activities for these reaction as a function of a more fundamental property, a descriptor, OH-M(2+δ) bond strength (0 ≤ δ ≤ 1.5), provide the foundation for rational design of 'active sites' for practical alkaline HER and OER electrocatalysts.
Journal ArticleDOI
Self-Supported Nanoporous Cobalt Phosphide Nanowire Arrays: An Efficient 3D Hydrogen-Evolving Cathode over the Wide Range of pH 0–14
TL;DR: The topotactic fabrication of self-supported nanoporous cobalt phosphide nanowire arrays on carbon cloth via low-temperature phosphidation of the corresponding Co(OH)F/CC precursor offers excellent catalytic performance and durability under neutral and basic conditions.