Synthesis of a SiO2 nanofibre confined Ni catalyst by electrospinning for the CO2 reforming of methane

2015 ◽  
Vol 3 (25) ◽  
pp. 13299-13307 ◽  
Author(s):  
Shipeng Wen ◽  
Meili Liang ◽  
Junma Zou ◽  
Sun Wang ◽  
Xiandong Zhu ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Ni Catalyst ◽  
Electrospinning Technique ◽  
Co2 Reforming ◽  
Co2 Reforming Of Methane

A SiO2 nanofibre confined Ni catalyst synthesized by the electrospinning technique exhibited slightly higher activity and much better stability for the carbon dioxide (CO2) reforming of methane.

Isotope Effect and Rate-Determining Step of the CO2-Reforming of Methane over Supported Ni Catalyst

1998 ◽  
Vol 180 (1) ◽  
pp. 106-109 ◽  
Author(s):  
Toshihiko Osaki ◽  
Haruhiko Fukaya ◽  
Tatsuro Horiuchi ◽  
Kenzi Suzuki ◽  
Toshiaki Mori
Keyword(s):  
Isotope Effect ◽  
Ni Catalyst ◽  
Co2 Reforming ◽  
Co2 Reforming Of Methane ◽  
Rate Determining Step ◽  
Supported Ni Catalyst ◽  
Supported Ni

Nano-MgO: novel preparation and application as support of Ni catalyst for CO2 reforming of methane

2001 ◽  
Vol 68 (1-3) ◽  
pp. 217-225 ◽  
Author(s):  
Bo-Qing Xu ◽  
Jun-Mei Wei ◽  
Hai-Yan Wang ◽  
Ke-Qiang Sun ◽  
Qi-Ming Zhu
Keyword(s):  
Ni Catalyst ◽  
Co2 Reforming ◽  
Co2 Reforming Of Methane

Highly stable mesoporous NiO–Y2O3–Al2O3 catalysts for CO2 reforming of methane: effect of Ni embedding and Y2O3 promotion

2016 ◽  
Vol 6 (2) ◽  
pp. 449-459 ◽  
Author(s):  
Xin Huang ◽  
Guangxin Xue ◽  
Changzhen Wang ◽  
Ning Zhao ◽  
Nannan Sun ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Self Assembly ◽  
Carbon Dioxide Reforming ◽  
One Pot ◽  
Co2 Reforming ◽  
Co2 Reforming Of Methane ◽  
Composite Oxides ◽  
Evaporation Induced Self Assembly

A series of mesoporous NiO–Y2O3–Al2O3 composite oxides with different yttrium contents were synthesized by either a one-pot evaporation-induced self-assembly (EISA) method or impregnation for carbon dioxide reforming of methane (CRM).

scholarly journals The Effect of ZrO2 as Different Components of Ni-Based Catalysts for CO2 Reforming of Methane and Combined Steam and CO2 Reforming of Methane on Catalytic Performance with Coke Formation

Catalysts ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 984
Author(s):  
Wassachol Sumarasingha ◽  
Somsak Supasitmongkol ◽  
Monrudee Phongaksorn
Keyword(s):  
Oxygen Transfer ◽  
Supported Catalysts ◽  
Coke Formation ◽  
Ni Catalyst ◽  
Impregnation Method ◽  
Co2 Conversion ◽  
Spent Catalyst ◽  
Zro2 Content ◽  
Co2 Reforming ◽  
Co2 Reforming Of Methane

The role of ZrO2 as different components in Ni-based catalysts for CO2 reforming of methane (CRM) has been investigated. The 10 wt.% Ni supported catalysts were prepared with ZrO2 as a support using a co-impregnation method. As a promoter (1 wt.% ZrO2) and a coactive component (10 wt.% ZrO2), the catalysts with ZrO2 were synthesized using a co-impregnation method. To evaluate the effect of the interaction, the Ni catalyst with ZrO2 as a coactive component was prepared by a sequential impregnation method. The results revealed that the activity, the selectivity, and the anti-coking ability of the catalyst depend upon the ZrO2 content, the Ni-ZrO2 interaction, basicity, and oxygen mobility of each catalyst resulting in different Ni dispersion and oxygen transfer pathway from ZrO2 to Ni. According to the characterization and catalytic activation results, the Ni catalyst with low ZrO2 content (as a promoter) presented highest selectivity toward CO owning to the high number of weak and moderate basic sites that enhance the CO2 activation-dissociation. The lowest activity (CH4 conversion ≈ 40% and CO2 conversion ≈ 39%) with the relatively high quantity of total coke formation (the weight loss of the spent catalyst in TGA curve ≈ 22%) of the Ni catalyst with ZrO2 as a support is ascribed to the lowest Ni dispersion due to the poor Ni-ZrO2 interaction and less oxygen transfer from ZrO2 to the deposited carbon on the Ni surface. The effect of a poor Ni-ZrO2 interaction on the catalytic activity was deducted by decreasing ZrO2 content to 10 wt.% (as a coactive component) and 1 wt.% (as a promoter). Although Ni catalysts with 1 wt.% and 10 wt.% ZrO2 provided similar oxygen mobility, the lack of oxygen transfer to coke during CRM process on the Ni surface was still indicated by the growth of carbon filament when the catalyst was prepared by co-impregnation method. When the catalyst was prepared by a sequential impregnation, the intimate interaction of Ni and ZrO2 for oxygen transfer was successfully developed through a ZrO2-Al2O3 composite. The interaction in this catalyst enhanced the catalytic activity (CH4 conversion ≈ 54% and CO2 conversion ≈ 50%) and the oxygen transport for carbon oxidation (the weight loss of the spent catalyst in TGA curve ≈ 7%) for CRM process. The Ni supported catalysts with ZrO2 as a promoter prepared by co-impregnation and with ZrO2 as a coactive component prepared by a sequential impregnation were tested in combined steam and CO2 reforming of methane (CSCRM). The results revealed that the ZrO2 promoter provided a greater carbon resistance (coke = 1.213 mmol·g−1) with the subtraction of CH4 and CO2 activities (CH4 conversion ≈ 28% and CO2 conversion ≈ %) due to the loss of active sites to the H2O activation-dissociation. Thus, the H2O activation-dissociation was promoted more efficiently on the basic sites than on the vacancy sites in CSCRM.

Enhanced porosity of Ni@Hollow meso-SiO2 catalyst for CO2 reforming of methane

2021 ◽  
Vol 46 (11) ◽  
pp. 7866-7877
Author(s):  
Zi-Yian Lim ◽  
Junling Tu ◽  
Yongjun Xu ◽  
Baiman Chen
Keyword(s):  
Co2 Reforming ◽  
Co2 Reforming Of Methane

scholarly journals Ce - promoted catalyst from hydrotalcites for CO2 reforming of methane: calcination temperature effect

Química Nova ◽  
2012 ◽  
Vol 35 (7) ◽  
pp. 1325-1328 ◽  
Author(s):  
Carlos Enrique Daza ◽  
Sonia Moreno ◽  
Rafael Molina
Keyword(s):  
Temperature Effect ◽  
Calcination Temperature ◽  
Co2 Reforming ◽  
Co2 Reforming Of Methane

scholarly journals Inside Back Cover: Lewis Acid Sites Stabilized Nickel Catalysts for Dry (CO2 ) Reforming of Methane (ChemCatChem 24/2016)

ChemCatChem ◽  
2016 ◽  
Vol 8 (24) ◽  
pp. 3814-3814
Author(s):  
Jun Ni ◽  
Jia Zhao ◽  
Luwei Chen ◽  
Jianyi Lin ◽  
Sibudjing Kawi
Keyword(s):  
Lewis Acid ◽  
Nickel Catalysts ◽  
Acid Sites ◽  
Lewis Acid Sites ◽  
Co2 Reforming ◽  
Back Cover ◽  
Co2 Reforming Of Methane
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