Simultaneous production of hydrogen and carbon nanotubes from biogas: On the effect of Ce addition to CoMo/MgO catalyst

2021 ◽  
Author(s):  
Thunyathon Kludpantanapan ◽  
Paveenuch Nantapong ◽  
Raminda Rattanaamonkulchai ◽  
Atthapon Srifa ◽  
Wanida Koo-Amornpattana ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Simultaneous Production ◽  
Production Of Hydrogen

Ni/ZrO2-CeO2 Catalysts for the Simultaneous Production of Hydrogen and Carbon Nanotubes

2011 ◽  
Vol 14 (2) ◽  
pp. 127-131
Author(s):  
M. L. Hernandez-Pichardo ◽  
M. A. Valenzuela ◽  
S. P. Paredes ◽  
P. Del Angel ◽  
J. A. Montoya De la Fuente
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Transmission Electron Microscopy ◽  
Ultrasound Treatment ◽  
Synthesis Methods ◽  
X Ray Diffraction ◽  
X Ray ◽  
Simultaneous Production ◽  
Transmission Electron ◽  
Production Of Hydrogen

The catalytic methane decomposition (CMD) using Ni/ZrO2-CeO2 catalysts for the simultaneous production of hydrogen and carbon nanotubes, was studied on samples prepared by different synthesis methods. The catalysts were synthesized by the impregnation and coprecipitation methods with or without ultrasound treatment. X-ray diffraction (XRD), Raman spectroscopy and high resolution transmission electron microscopy (HRTEM) were the main characterization techniques. It was observed that the Ni impregnated catalyst with ultrasound treatment increases significantly the production of hydrogen and carbon nanotubes in the CDM at 500 °C. The results also indicated that the synthesis of catalysts via coprecipitation generates a higher number of encapsulated Ni particles by both, the ZrO2-CeO2 support and the produced carbon at the end of the reaction.

scholarly journals Co-production of hydrogen and carbon nanotubes from catalytic pyrolysis of waste plastics on Ni-Fe bimetallic catalyst

2017 ◽  
Vol 148 ◽  
pp. 692-700 ◽  
Author(s):  
Dingding Yao ◽  
Chunfei Wu ◽  
Haiping Yang ◽  
Yeshui Zhang ◽  
Mohamad A. Nahil ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Catalytic Pyrolysis ◽  
Bimetallic Catalyst ◽  
Waste Plastics ◽  
Production Of Hydrogen

Enhancing the production of hydrogen peroxide from electrocatalytic oxygen reduction reaction by tailoring the electronic states of single-walled carbon nanotubes: a synergistic effect from interior filling and exterior oxidation

2019 ◽  
Vol 3 (8) ◽  
pp. 1951-1956 ◽  
Author(s):  
Rongtao Hu ◽  
Fenfa Yao ◽  
Chuxin Wu ◽  
Chuanhong Jin ◽  
Lunhui Guan
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Single Walled Carbon Nanotubes ◽  
Phosphomolybdic Acid ◽  
Reduction Reaction ◽  
Single Walled Carbon ◽  
Electrocatalytic Oxygen Reduction ◽  
Production Of Hydrogen ◽  
Walled Carbon Nanotubes

Single-walled carbon nanotubes co-modified with interior filling of phosphomolybdic acid and successive exterior oxidation (O-HPMO@SWCNTs) possess better two-electron oxygen reduction reaction performance than the HPMO-filled SWCNTs, oxidized SWCNTs or pristine SWCNTs.

Anaerobic Photocatalytic Oxidation of Carbohydrates in Aqueous Pt/TiO2 Suspensions with Simultaneous Production of Hydrogen

2010 ◽  
Vol 13 (1) ◽  
Author(s):  
Dimitris I. Kondarides ◽  
Alexia Patsoura ◽  
Xenophon E. Verykios
Keyword(s):  
Photocatalytic Degradation ◽  
Photocatalytic Oxidation ◽  
Solar Light ◽  
Complete Oxidation ◽  
Simultaneous Production ◽  
Tio2 Catalyst ◽  
Production Of Hydrogen

AbstractThe photocatalytic degradation of a variety of carbohydrates in solution, including mono-, di-, and poly-saccharides, has been investigated under unaerated conditions with the use of a Pt/TiO2 catalyst and a solar light simulating source. It has been found that, even in the absence of oxygen, complete oxidation of carbohydrates toward CO

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