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.

One-pot synthesis of highly sintering- and coking-resistant Ni nanoparticles encapsulated in dendritic mesoporous SiO2 for methane dry reforming

2018 ◽  
Vol 54 (99) ◽  
pp. 13993-13996 ◽  
Author(s):  
Jingqing Tian ◽  
Bing Ma ◽  
Saiyu Bu ◽  
Qinghong Yuan ◽  
Chen Zhao
Keyword(s):  
Dry Reforming ◽  
Ni Nanoparticles ◽  
One Pot ◽  
Methane Dry Reforming ◽  
One Pot Synthesis ◽  
Mesoporous Sio2

We present a one-pot method for the encapsulation of small Ni particles into a dendritic SiO2 skeleton.

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.

scholarly journals Facile immobilization of Ni nanoparticles into mesoporous MCM-41 channels for efficient methane dry reforming

2019 ◽  
Vol 40 (9) ◽  
pp. 1395-1404 ◽  
Author(s):  
Jingqing Tian ◽  
Haocheng Li ◽  
Xin Zeng ◽  
Zichun Wang ◽  
Jun Huang ◽  
...  
Keyword(s):  
Dry Reforming ◽  
Ni Nanoparticles ◽  
Methane Dry Reforming ◽  
Mcm 41

scholarly journals Structural, Textural, and Catalytic Properties of Ni-CexZr1−xO2 Catalysts for Methane Dry Reforming Prepared by Continuous Synthesis in Supercritical Isopropanol

Energies ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3728
Author(s):  
Svetlana Pavlova ◽  
Marina Smirnova ◽  
Aleksei Bobin ◽  
Svetlana Cherepanova ◽  
Vasily Kaichev ◽  
...  
Keyword(s):  
Nickel Nanoparticles ◽  
Catalytic Properties ◽  
Dry Reforming ◽  
High Dispersion ◽  
Incipient Wetness Impregnation ◽  
One Pot ◽  
Methane Dry Reforming ◽  
Continuous Synthesis ◽  
The One ◽  
Supercritical Isopropanol

A series of 5%Ni-CexZr1−xO2 (x = 0.3, 0.5, 0.7) catalysts has been prepared via one-pot solvothermal continuous synthesis in supercritical isopropanol and incipient wetness impregnation of CexZr1−xO2 obtained by the same route. The textural, structural, red-ox, and catalytic properties in methane dry reforming (MDR) of Ni-modified Ce-Zr oxides synthesized by two routes have been compared. It was shown by XRD, TEM, and Raman spectroscopy that the method of Ni introduction does not affect the phase composition of the catalysts, but determines the dispersion of NiO. Despite a high dispersion of NiO and near-uniform distribution of Ni within Ce-Zr particles observed for the one-pot catalysts, they have shown a lower activity and stability in MDR as compared with impregnated ones. This is a result of a low Ni concentration in the surface layer due to segregation of Ce and decoration of nickel nanoparticles with support species.

Bi- and trimetallic Ni catalysts over Al2O3 and Al2O3-MO (M = Ce or Mg) oxides for methane dry reforming: Au and Pt additive effects

2014 ◽  
Vol 156-157 ◽  
pp. 350-361 ◽  
Author(s):  
Hongjing Wu ◽  
Giuseppe Pantaleo ◽  
Valeria La Parola ◽  
Anna M. Venezia ◽  
Xavier Collard ◽  
...  
Keyword(s):  
Dry Reforming ◽  
Additive Effects ◽  
Ni Catalysts ◽  
Methane Dry Reforming
Sign in / Sign up

Export Citation Format

Share Document