Results 1 to 10 of about 82,647 (188)

Ion-Exchanged Beta-Based Cobalt Catalyst for Efficient Degradation of Aqueous Dye Acid Orange II [PDF]

open access: yesNanomaterials
A highly active Co/Beta catalyst was prepared via ion-exchange method, in which sodium cations in the beta zeolite framework were replaced by cobalt ions using an aqueous cobalt nitrate solution.
En Fu   +4 more
doaj   +2 more sources

Atomic Layer Deposition of Cobalt Catalyst for Fischer–Tropsch Synthesis in Silicon Microchannel Microreactor [PDF]

open access: yesNanomaterials, 2022
In recent years, rising environmental concerns have led to the focus on some of the innovative alternative technologies to produce clean burning fuels. Fischer–Tropsch (FT) synthesis is one of the alternative chemical processes to produce synthetic fuels,
Nafeezuddin Mohammad   +2 more
doaj   +2 more sources

Correlation between Fischer-Tropsch catalytic activity and composition of catalysts [PDF]

open access: yesChemistry Central Journal, 2011
This paper presents the synthesis and characterization of monometallic and bimetallic cobalt and iron nanoparticles supported on alumina. The catalysts were prepared by a wet impregnation method.
Subbarao Duvvuri   +2 more
doaj   +2 more sources

A universal atomically dispersed cobalt catalyst for alkylation of ketones alcohols and lignin-derived compounds [PDF]

open access: yesNature Communications
Catalytic carbon-carbon bond-forming reactions provide the basis for synthetic organic chemistry. To move towards a circular carbon economy, it is imperative to efficiently convert sustainable and inexpensive starting materials, e.g.
Zhuang Ma   +6 more
doaj   +2 more sources

Preparation of cubic SiC from δ-Na2Si2O5/carbon nanocomposite using cobalt catalyst [PDF]

open access: yesScience and Technology of Advanced Materials, 2019
Silicon carbide (SiC) was prepared by carbothermal reduction of a crystalline-layered sodium silicate (δ-Na2Si2O5)/carbon nanocomposite (LCN), which contained a stacked carbon film embedded with cobalt between the silicate layers. Subsequent sintering of
Kyeong-Won Park, Oh-Yun Kwon
doaj   +2 more sources

Enhancement of Cobalt Catalyst performance and Stability in Fischer-Tropsch Synthesis Using Graphene Nanosheets as Catalyst Support [PDF]

open access: yesشیمی کاربردی روز, 2016
Graphene nano sheets (GNS) supported cobalt catalyst, is introduced for Fischer-Tropsch synthesis (FTS). The catalyst was prepared using wet impregnation method with cobalt loading of 15.0 wt%.
Seyedeh Somayeh Taghavi   +2 more
doaj   +1 more source

Preparation of Nitrogen Doped Mesoporous Carbon Supported Cobalt Catalyst and Its Performance for Removal of CO in Hydrogen-Rich Gas

open access: yes发电技术, 2023
In order to effectively remove CO from hydrogen-rich gas, cobalt-based nano-particle catalyst supported on nitrogen-doped ordered mesoporous carbon was prepared and characterized by X-ray diffraction (XRD), Raman spectrum, X-ray photoelectron ...
WANG Haiguang, LIU Yongfeng, ZHANG Jun
doaj   +1 more source

Microwave Assisted Co/SiO2 preparation for Fischer-Tropsch synthesis

open access: yesJurnal Natural, 2020
Cobalt catalyst has been widely used for Fischer-Tropsch (FT) Synthesis in Industry. The most common method to prepare cobalt catalyst is impregnations.
TEUKU MUKHRIZA, KUI ZHANG, ANH N. PHAN
doaj   +1 more source

Cobalt-based Catalysts for Ammonia Decomposition [PDF]

open access: yesMaterials, 2013
An effect of promoters such as calcium, aluminium, and potassium oxides and also addition of chromium and manganese on the structure of cobalt catalysts was examined. Studies of the catalytic ammonia decomposition over the cobalt catalysts are presented.
Zofia Lendzion-Bielun   +2 more
openaire   +2 more sources

An in situ XAS study of the cobalt rhenium catalyst for ammonia synthesis [PDF]

open access: yes, 2018
A cobalt rhenium catalyst active for ammonia synthesis at 400 °C and ambient pressure was studied using in situ XAS to elucidate the reducibility and local environment of the two metals during reaction conditions.
Granlund Kirste, Karsten   +6 more
core   +3 more sources

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