Synergistic effect of three-dimensional cobalt diselenide/carbon nanotube arrays composites for enhanced hydrogen evolution reaction

2018 ◽  
Vol 285 ◽  
pp. 254-261 ◽  
Author(s):  
Mingyuan Zhang ◽  
Aiping Hu ◽  
Zheng Liu ◽  
Yali Xu ◽  
Binbin Fan ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Synergistic Effect ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Three Dimensional ◽  
Nanotube Arrays ◽  
Carbon Nanotube Arrays

scholarly journals Tailoring the d-band center of N-doped carbon nanotube arrays with Co4N nanoparticles and single-atom Co for a superior hydrogen evolution reaction

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Bo Cao ◽  
Minghao Hu ◽  
Yan Cheng ◽  
Peng Jing ◽  
Baocang Liu ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Density Functional ◽  
Single Atom ◽  
Nanotube Arrays ◽  
Carbon Cloth ◽  
Band Center ◽  
Carbon Nanotube Arrays

AbstractA 3D self-supported integrated electrode, consisting of heteroatomic nitrogen-doped carbon nanotube arrays on carbon cloth with confined ultrafine Co4N nanoparticles and a distribution of anchored single-atom Co, is fabricated via a cobalt-catalyzed growth strategy using dicyandiamide as the nitrogen and carbon source and a layered cobalt hydroxide-nitrate salt as the precursor. The abundance of exposed active sites, namely, the Co4N nanoparticles, single-atom Co, and heteroatomic N-doped carbon nanotubes, and multiple synergistic effects among these components provide suitable tailoring of the d-band center for facilitating vectorial electron transfer and efficient electrocatalysis. Benefiting from the merits of its structural features and electronic configuration, the prepared electrode exhibits robust performance toward the hydrogen evolution reaction with overpotentials of only 78 and 86 mV at 10 mA cm−2 in acidic and basic electrolytes, respectively. Density functional theory calculations and X-ray photoelectron spectroscopy valence band measurements reveal that the effective tailoring of the d-band center by Co4N nanoparticles plays a crucial role in optimizing the hydrogen adsorption free energy to a more thermoneutral value for efficient electrocatalysis.

Rapid Size-Based Isolation of Extracellular Vesicles by Three-Dimensional Carbon Nanotube Arrays

2020 ◽  
Vol 12 (11) ◽  
pp. 13134-13139 ◽  
Author(s):  
Yin-Ting Yeh ◽  
Yijing Zhou ◽  
Donghua Zou ◽  
He Liu ◽  
Haiyang Yu ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Extracellular Vesicles ◽  
Three Dimensional ◽  
Nanotube Arrays ◽  
Carbon Nanotube Arrays

scholarly journals Packing morphology of wavy nanofiber arrays

2016 ◽  
Vol 18 (2) ◽  
pp. 694-699 ◽  
Author(s):  
Itai Y. Stein ◽  
Brian L. Wardle
Keyword(s):  
Carbon Nanotube ◽  
Three Dimensional ◽  
Nanotube Arrays ◽  
Carbon Nanotube Arrays

Aligned carbon nanotube arrays with stochastic three-dimensional morphologies underscore the importance of nanofiber waviness and present how existing morphology models can be modified to account for this non-ideality.

Hydrogen Evolution on Hydrophobic Aligned Carbon Nanotube Arrays

ACS Nano ◽  
2009 ◽  
Vol 3 (12) ◽  
pp. 3903-3908 ◽  
Author(s):  
Abha Misra ◽  
Jyotsnendu Giri ◽  
Chiara Daraio
Keyword(s):  
Carbon Nanotube ◽  
Hydrogen Evolution ◽  
Nanotube Arrays ◽  
Carbon Nanotube Arrays

Synthesis of tungsten carbide and tungsten disulfide on vertically aligned multi-walled carbon nanotube forests and their application as non-Pt electrocatalysts for the hydrogen evolution reaction

2015 ◽  
Vol 3 (28) ◽  
pp. 14609-14616 ◽  
Author(s):  
Jhih-Fong Lin ◽  
Olli Pitkänen ◽  
Jani Mäklin ◽  
Robert Puskas ◽  
Akos Kukovecz ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Tungsten Carbide ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Three Dimensional ◽  
Multi Walled Carbon Nanotube ◽  
Direct Growth ◽  
Vertically Aligned ◽  
Pt Electrocatalysts ◽  
Carbon Nanotube Forests

Direct growth of tungsten carbide and sulfide on vertically aligned CNTs is demonstrated for a facile construction of three-dimensional electrocatalyst nanostructures.

Molybdenum disulfide nanosheet embedded three-dimensional vertically aligned carbon nanotube arrays for extremely-excellent cycling stability lithium-ion anodes

RSC Advances ◽  
2016 ◽  
Vol 6 (83) ◽  
pp. 80320-80327 ◽  
Author(s):  
Haining Fan ◽  
Xiaohua Chen ◽  
Qunli Tang ◽  
Shanliang Chen ◽  
Binbin Fan ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Hydrothermal Method ◽  
Molybdenum Disulfide ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Cycling Stability ◽  
Nanotube Arrays ◽  
Carbon Nanotube Arrays ◽  
Vertically Aligned ◽  
Excellent Cycling Stability

Molybdenum disulfide (MoS2) nanosheets embedded in 3D vertically aligned carbon nanotube arrays (VACNTs) have been fabricated via a simple nebulization-assisted hydrothermal method and exhibited extremely-excellent cycling stability.

scholarly journals Aligned carbon nanotube array stiffness from stochastic three-dimensional morphology

Nanoscale ◽  
2015 ◽  
Vol 7 (46) ◽  
pp. 19426-19431 ◽  
Author(s):  
Itai Y. Stein ◽  
Diana J. Lewis ◽  
Brian L. Wardle
Keyword(s):  
Carbon Nanotube ◽  
Three Dimensional ◽  
Nanotube Arrays ◽  
Nanotube Array ◽  
Carbon Nanotube Array ◽  
Carbon Nanotube Arrays

Stiffness of aligned carbon nanotube arrays from their stochastic three-dimensional packing morphology.

Enhanced field emission from three-dimensional patterned carbon nanotube arrays grown on flexible carbon cloth

2012 ◽  
Vol 22 (8) ◽  
pp. 3478 ◽  
Author(s):  
Nishuang Liu ◽  
Guojia Fang ◽  
Wei Zeng ◽  
Hai Zhou ◽  
Hao Long ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Field Emission ◽  
Three Dimensional ◽  
Nanotube Arrays ◽  
Carbon Cloth ◽  
Carbon Nanotube Arrays

A three-dimensional vertically aligned carbon nanotube/polyaniline composite as a supercapacitor electrode

RSC Advances ◽  
2016 ◽  
Vol 6 (112) ◽  
pp. 110592-110599 ◽  
Author(s):  
Shasha Jiao ◽  
Tiehu Li ◽  
Yonggang Zhang ◽  
Chuanyin Xiong ◽  
Tingkai Zhao ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Vapor Deposition ◽  
Three Dimensional ◽  
Pure Titanium ◽  
Chemical Vapor ◽  
Nanotube Arrays ◽  
Supercapacitor Electrode ◽  
Carbon Nanotube Arrays ◽  
Vertically Aligned ◽  
Polyaniline Composites

Highly vertically aligned carbon nanotube arrays grown on the surface of pure titanium plates by chemical vapor deposition serve as substrates for electrodepositing polyaniline to fabricate three-dimensional carbon nanotube/polyaniline composites.

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