Cobalt disulfide nanosphere dispersed on multi-walled carbon nanotubes: an efficient and stable electrocatalyst for hydrogen evolution reaction

Ionics ◽  
2018 ◽  
Vol 24 (11) ◽  
pp. 3591-3599 ◽  
Author(s):  
Huanhuan Liu ◽  
Ping He ◽  
Lingpu Jia ◽  
Mingqian He ◽  
Xingquan Zhang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Cobalt Disulfide ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

MoS 2 nanosheets supported on reduced carboxylic multi-walled carbon nanotubes: An advanced catalyst for the hydrogen evolution reaction

2017 ◽  
Vol 176 ◽  
pp. 89-93 ◽  
Author(s):  
Jing Zhou ◽  
Jiamu Cao ◽  
Yuezhang Zou ◽  
Yufeng Zhang ◽  
Xiaowei Liu
Keyword(s):  
Carbon Nanotubes ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Electrochemical Activation of Single-Walled Carbon Nanotubes with Pseudo-Atomic-Scale Platinum for the Hydrogen Evolution Reaction

ACS Catalysis ◽  
2017 ◽  
Vol 7 (5) ◽  
pp. 3121-3130 ◽  
Author(s):  
Mohammad Tavakkoli ◽  
Nico Holmberg ◽  
Rasmus Kronberg ◽  
Hua Jiang ◽  
Jani Sainio ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Single Walled Carbon Nanotubes ◽  
Atomic Scale ◽  
Electrochemical Activation ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

scholarly journals Catalytic Behavior of Molybdenum Sulfide for the Hydrogen Evolution Reaction as a Function of Crystallinity and Particle Size Using Carbon Multiwall Nanotubes as Substrates

2020 ◽  
Vol 234 (5) ◽  
pp. 1021-1043 ◽  
Author(s):  
Diana Stellmach ◽  
Fanxing Xi ◽  
Ulrike Bloeck ◽  
Peter Bogdanoff ◽  
Sebastian Fiechter
Keyword(s):  
Carbon Nanotubes ◽  
Particle Size ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Molybdenum Sulfide ◽  
Active Centers ◽  
Catalytically Active ◽  
Multi Walled Carbon Nanotubes ◽  
Different Diameters

AbstractMolybdenum sulfide is of interest as a noble metal-free catalyst for the hydrogen evolution reaction (HER). In crystallized form, it shows a typical stacking of planar S–Mo–S layers whereas the catalytically active centers are situated on the edges of these entities characterized by non-saturated bonds of the molybdenum atoms. In this study, 2H-MoS2 is investigated as HER catalyst as a function of particle size using powder electrodes of different grain sizes and morphology. HER was also determined as a function of growth defects (bending of layers) and as a function of active sites employing MoS2 nanoparticles (NP). To study the influence of the substrate on the perfection of the transition metal disulfide, MoS2 nanosheets were deposited on multi-walled carbon nanotubes (MWCNTs) of different diameters. Highest activity was found for MoS2 nanosheets deposited on MWCNTs with a diameter smaller than 8 nm. At diameters larger than 10 nm, a wrapping of the nanotubes by partially bended stacks of S–Mo–S layers occurs, while at diameters smaller than 10 nm, individual MoS2 nanosheets of 3–5 S–Mo–S stacks of 3–4 nm in height and 10–20 nm in lateral extension surround the carbon nanotubes in form of hexagonal cylinders. The ratio of catalytically active non-van-der-Waals and hexagonal basal planes was determined electrochemically by electro-oxidation and correlated with HER activity.

Enhanced hydrogen evolution reaction over molybdenum carbide nanoparticles confined inside single-walled carbon nanotubes

2019 ◽  
Vol 28 ◽  
pp. 123-127 ◽  
Author(s):  
Tingting Cui ◽  
Jinhu Dong ◽  
Xiulian Pan ◽  
Tie Yu ◽  
Qiang Fu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Molybdenum Carbide ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes
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