scholarly journals Investigation of new routes for the preparation of mesoporous calcium oxide supported nickel materials used as catalysts for the methane dry reforming reaction

2020 ◽  
Vol 10 (20) ◽  
pp. 6910-6922
Author(s):  
Ola El Samrout ◽  
Leila Karam ◽  
Karam Jabbour ◽  
Pascale Massiani ◽  
Franck Launay ◽  
...  
Keyword(s):  
Calcium Oxide ◽  
Catalytic Reaction ◽  
Nickel Nanoparticles ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Methane Dry Reforming ◽  
Mesoporous Supports ◽  
Materials Used

Calcium oxide mesoporous supports were successfully synthetized and used to disperse nickel nanoparticles for the dry reforming of methane catalytic reaction.

Performance and structural features of LaNi0.5Co0.5O3 perovskite oxides for the dry reforming of methane: influence of the preparation method

2019 ◽  
Vol 43 (27) ◽  
pp. 10763-10773 ◽  
Author(s):  
Maryam Mousavi ◽  
Ali Nakhaei Pour
Keyword(s):  
Preparation Method ◽  
Perovskite Oxides ◽  
Structural Features ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Methane Dry Reforming ◽  
Magnetized Water

LaNiO3 and LaNi0.5Co0.5O3 as perovskites were synthesized in magnetized and non-magnetized water and the activity of the catalysts was evaluated in the methane dry reforming reaction with CO2.

scholarly journals Elucidation of the higher coking resistance of small versus large nickel nanoparticles in methane dry reforming via computational modeling

2017 ◽  
Vol 7 (15) ◽  
pp. 3339-3347 ◽  
Author(s):  
Hristiyan A. Aleksandrov ◽  
Nikolaos Pegios ◽  
Regina Palkovits ◽  
Kalin Simeonov ◽  
Georgi N. Vayssilov
Keyword(s):  
Computational Modeling ◽  
Nickel Nanoparticles ◽  
Dry Reforming ◽  
Ni Nanoparticles ◽  
Methane Dry Reforming ◽  
Carbon Chains

Monoatomic C species remain separated in the subsurface regions of small Ni nanoparticles, while in larger particles, carbon chains are formed, which can be considered as precursors for coke or graphene formation.

scholarly journals Highly Active and Carbon-Resistant Nickel Single-Atom Catalysts for Methane Dry Reforming

Catalysts ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 630
Author(s):  
Mohcin Akri ◽  
Achraf El Kasmi ◽  
Catherine Batiot-Dupeyrat ◽  
Botao Qiao
Keyword(s):  
Noble Metals ◽  
Nickel Nanoparticles ◽  
Carbon Deposition ◽  
Clean Energy ◽  
Nickel Catalysts ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Single Atom ◽  
Energy And Environment ◽  
Nanoparticle Catalysts

The conversion of CH4 and CO2 to syngas using low-cost nickel catalysts has attracted considerable interest in the clean energy and environment field. Nickel nanoparticles catalysts suffer from serious deactivation due mainly to carbon deposition. Here, we report a facile synthesis of Ni single-atom and nanoparticle catalysts dispersed on hydroxyapatite (HAP) support using the strong electrostatic adsorption (SEA) method. Ni single-atom catalysts exhibit excellent resistance to carbon deposition and high atom efficiency with the highest reaction rate of 1186.2 and 816.5 mol.gNi−1.h−1 for CO2 and CH4, respectively. Although Ni single-atom catalysts aggregate quickly to large particles, the polyvinylpyrrolidone (PVP)-assisted synthesis exhibited a significant improvement of Ni single-atom stability. Characterizations of spent catalysts revealed that carbon deposition is more favorable over nickel nanoparticles. Interestingly, it was found that, separately, CH4 decomposition on nickel nanoparticle catalysts and subsequent gasification of deposit carbon with CO2 resulted in CO generation, which indicates that carbon is reacting as an intermediate species during reaction. Accordingly, the approach used in this work for the design and control of Ni single-atom and nanoparticles-based catalysts, for dry reforming of methane (DRM), paves the way towards the development of stable noble metals-free catalysts.

scholarly journals Application of Microwave in Hydrogen Production from Methane Dry Reforming: Comparison Between the Conventional and Microwave-Assisted Catalytic Reforming on Improving the Energy Efficiency

Catalysts ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 618 ◽  
Author(s):  
Seyyedmajid Sharifvaghefi ◽  
Babak Shirani ◽  
Mladen Eic ◽  
Ying Zheng
Keyword(s):  
Energy Efficiency ◽  
Microwave Heating ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Conventional Heating ◽  
Feed Conversion ◽  
Methane Dry Reforming ◽  
Microwave Assisted ◽  
Reaction Conversion ◽  
Active Metal

The microwave-assisted dry reforming of methane over Ni and Ni–MgO catalysts supported on activated carbon (AC) was studied with respect to reducing reaction energy consumption. In order to optimize the reforming reaction using the microwave setup, an inclusive study was performed on the effect of operating parameters, including the type of catalysts’ active metal and their concentration in the AC support, feed flow rate, and reaction temperature on the reaction conversion and H2/CO selectivity. The methane dry reforming was also carried out using conventional heating and the results were compared to those of microwave heating. The catalysts’ activity was increased under microwave heating and as a result, the feed conversion and hydrogen selectivity were enhanced in comparison to the conventional heating method. In addition, to improve the reactants’ conversion and products’ selectivity, the thermal analysis also clarified the crucial importance of microwave heating in enhancing the energy efficiency of the reaction compared to the conventional heating.

Facile synthesis of highly disperse Ni–Co nanoparticles over mesoporous silica for enhanced methane dry reforming

Nanoscale ◽  
2018 ◽  
Vol 10 (14) ◽  
pp. 6409-6425 ◽  
Author(s):  
Subhasis Das ◽  
Manideepa Sengupta ◽  
Arijit Bag ◽  
Mumtaj Shah ◽  
Ankur Bordoloi
Keyword(s):  
Mesoporous Silica ◽  
Catalyst System ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Facile Synthesis ◽  
Methane Dry Reforming ◽  
Synergistic Approach ◽  
Co Nanoparticles ◽  
Cobalt And Nickel

A synergistic approach was made to develop a highly stable and carbon resistant catalyst system based on cobalt and nickel supported over modified mesoporous silica for the dry reforming of methane (DRM).

Nickel nanoparticles loaded on ceria oxide spheres as catalyst for dry reforming of methane

2020 ◽  
Vol 17 (7/8/9/10) ◽  
pp. 740
Author(s):  
Diep Ngoc Le ◽  
Phuc Hoan Tu ◽  
Dung Trung Dao ◽  
Tin Chanh Duc Doan ◽  
Chien Mau Dang
Keyword(s):  
Nickel Nanoparticles ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Ceria Oxide
Sign in / Sign up

Export Citation Format

Share Document