Results 11 to 20 of about 82,764 (294)

Effects of Cobalt and Chromium Loadings to The Catalytic Activities of Supported Metal Catalysts in Methane Oxidation

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2020
A series of alumina supported cobalt and chromium catalysts with different metal loadings were prepared by impregnation method. Six types of alumina supported cobalt and chromium catalysts contained 5 wt%, 10 wt%, and 15 wt% loadings were produced and ...
Mardwita Mardwita   +2 more
doaj   +1 more source

Preparation and Performance of a Non-Precious Metal Catalyst CoMe/C for Oxygen Reduction Reaction from Modified Carbon Black Using Melamine as Nitrogen Source

open access: yesInternational Journal of Electrochemical Science, 2014
A non-precious metal catalyst for oxygen reduction reaction is prepared by heat-treating a precursor containing acetylene black, melamine and cobalt chloride.
Zhongping Xiong   +3 more
doaj   +1 more source

Regulation of oxygen reduction reaction performance cobalt-based nitrogen-doped carbon catalysts by vanadium

open access: yesHe jishu, 2021
BackgroundTransition metal nitrogen doped carbon materials are promising to replace precious metal platinum-based materials as an important electrocatalyst for oxygen reduction, and have attracted extensive attention in the research fields of energy ...
YANG Yuqi   +6 more
doaj   +1 more source

Bifunctional earth-abundant phosphate/phosphide catalysts prepared via atomic layer deposition for electrocatalytic water splitting [PDF]

open access: yes, 2019
The development of active and stable earth-abundant catalysts for hydrogen and oxygen evolution is one of the requirements for successful production of solar fuels.
Dendooven, Jolien   +7 more
core   +2 more sources

Finding a suitable catalyst for on-board ethanol reforming using exhaust heat from an internal combustion engine [PDF]

open access: yes, 2017
Ethanol steam reforming with pure ethanol and commercial bioethanol (S/C = 3) was carried out inside the housing of the exhaust gas pipe of a gasoline internal combustion engine (ICE) by using exhaust heat (610–620 °C).
Bosch Tous, Ricardo   +4 more
core   +2 more sources

Supported Cobalt Catalysts for Acceptorless Alcohol Dehydrogenation [PDF]

open access: yesChemPlusChem, 2020
AbstractThe acceptor‐less dehydrogenation of 2‐octanol was tested over cobalt supported on Al2O3, C, ZnO, ZrO2 and various TiO2 substrates. The catalysts were characterized by ICP, XRD and TGA‐H2. For Co/TiO2 P25, the effects of passivation, aging (storage at room temperature), and in situ activation under H2 were investigated.
Kazmierczak, K.   +5 more
openaire   +3 more sources

A Highly Active Nitrogen-Containing Non-Precious Metal Catalyst CoHMTA/C for Oxygen Reduction Reaction

open access: yesInternational Journal of Electrochemical Science, 2015
A nitrogen-containing non-precious metal catalyst (NPMC) CoHMTA/C for oxygen reduction reaction (ORR) is prepared by heat-treating a precursor containing acetylene black, hexamethylenetetramine and cobalt chloride.
Yujun Si   +3 more
doaj   +1 more source

A multi-scale study of 3D printed Co-Al2O3 catalyst monoliths versus spheres

open access: yesChemical Engineering Journal Advances, 2023
This study demonstrates the characteristics of two model packing configurations: 3D printed (3DP) catalyst monoliths on the one hand, and their conventional counterparts, packed beds of spheres, on the other.
Clement Jacquot   +10 more
doaj   +1 more source

Mn3O4@CoMn2O4-CoxOy nanoparticles : partial cation exchange synthesis and electrocatalytic properties toward the oxygen reduction and evolution reactions [PDF]

open access: yes, 2016
Mn3O4@CoMn2O4 nanoparticles (NPs) were produced at low temperature and ambient atmosphere using a one -pot two-step synthesis protocol involving the cation exchange of Mn by Co in preformed Mn3O4 NPs. Selecting the proper cobalt precursor, the nucleation
Andreu, Teresa   +13 more
core   +3 more sources

Effects of Weak Surface Modification on Co/SiO2 Catalyst for Fischer-Tropsch Reaction. [PDF]

open access: yesPLoS ONE, 2015
A weak surface modification is applied to Co/SiO2 catalyst by hydrothermal treatment at 180°C for 5 h. Aluminum is introduced to Co/SiO2 catalysts during the surface modification.
Wensheng Ning   +3 more
doaj   +1 more source

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