scholarly journals Highly Active Ceria-Supported Ru Catalyst for the Dry Reforming of Methane: In Situ Identification of Ruδ+–Ce3+ Interactions for Enhanced Conversion

ACS Catalysis ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 3349-3359 ◽  
Author(s):  
Zongyuan Liu ◽  
Feng Zhang ◽  
Ning Rui ◽  
Xing Li ◽  
Lili Lin ◽  
...  
Keyword(s):  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Ru Catalyst ◽  
Highly Active

scholarly journals Atomically dispersed nickel as coke-resistant active sites for methane dry reforming

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Mohcin Akri ◽  
Shu Zhao ◽  
Xiaoyu Li ◽  
Ketao Zang ◽  
Adam F. Lee ◽  
...  
Keyword(s):  
Active Sites ◽  
Large Scale ◽  
Low Cost ◽  
Coke Formation ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Highly Active ◽  
Catalytic Sites ◽  
Earth Abundant ◽  
Poor Stability

AbstractDry reforming of methane (DRM) is an attractive route to utilize CO2 as a chemical feedstock with which to convert CH4 into valuable syngas and simultaneously mitigate both greenhouse gases. Ni-based DRM catalysts are promising due to their high activity and low cost, but suffer from poor stability due to coke formation which has hindered their commercialization. Herein, we report that atomically dispersed Ni single atoms, stabilized by interaction with Ce-doped hydroxyapatite, are highly active and coke-resistant catalytic sites for DRM. Experimental and computational studies reveal that isolated Ni atoms are intrinsically coke-resistant due to their unique ability to only activate the first C-H bond in CH4, thus avoiding methane deep decomposition into carbon. This discovery offers new opportunities to develop large-scale DRM processes using earth abundant catalysts.

In-situ Co-Precipitation of Ni-Mg-Al-LDH Catalytic Precursor on γ-Al2O3 for Dry Reforming of Methane: Synthesis and Evaluation

2015 ◽  
Vol 31 (5) ◽  
pp. 948-954 ◽  
Author(s):  
ZHANG Xiao-Qing ◽  
◽  
XU Yan YAN ◽  
YANG Chun-Hui ◽  
ZHANG Yan-Ping ◽  
...  
Keyword(s):  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Co Precipitation

scholarly journals Highly active and stable Ni dispersed on mesoporous CeO2-Al2O3 catalysts for production of syngas by dry reforming of methane

2021 ◽  
Vol 281 ◽  
pp. 119459 ◽  
Author(s):  
André L.A. Marinho ◽  
Fabio S. Toniolo ◽  
Fabio B. Noronha ◽  
Florence Epron ◽  
Daniel Duprez ◽  
...  
Keyword(s):  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Highly Active ◽  
Mesoporous Ceo2

Enhanced activity and durability of Ru catalyst dispersed on zirconia for dry reforming of methane

2017 ◽  
Vol 293-294 ◽  
pp. 122-128 ◽  
Author(s):  
Ho Seok Whang ◽  
Min Seok Choi ◽  
Jinkyu Lim ◽  
Chanyeon Kim ◽  
Iljeong Heo ◽  
...  
Keyword(s):  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Ru Catalyst ◽  
Enhanced Activity

In situ preparation of Ni nanoparticles in cerium-modified silica aerogels for coking- and sintering-resistant dry reforming of methane

2017 ◽  
Vol 41 (12) ◽  
pp. 4869-4878 ◽  
Author(s):  
Xiaoyuan Zhao ◽  
Meirong Lu ◽  
Hongrui Li ◽  
Jianhui Fang ◽  
Liyi Shi ◽  
...  
Keyword(s):  
Silica Aerogels ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Ni Nanoparticles ◽  
Modified Silica ◽  
In Situ Preparation

Ni nanoparticles in nanochannels of cerium-modified silica aerogels were in situ prepared for coking-resistant dry reforming of methane.

scholarly journals Spectroscopic and Kinetic Insights into the Methane Reforming over Ce-pyrochlores

2019 ◽  
Author(s):  
Disha Jain ◽  
Shreya Saha
Keyword(s):  
Noble Metal ◽  
Material Characterization ◽  
Reaction Pathway ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Methane Reforming ◽  
In Situ Ftir ◽  
Ftir Studies ◽  
Surface Intermediates

<p></p><p>In the present study, we have studied the effect of doping of noble metal ions in Ce-pyrochlores for dry reforming of methane (DRM). Two series of noble metal (Pt and Ru) doped pyrochlores i.e. Ce<sub>2</sub>Zr<sub>2</sub>O<sub>7</sub> and Ce<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub> have been studied. Reducibility of the synthesized samples was measured to understand the interplay between the metal and support. A detailed material characterization was performed both pre-and post-reaction to highlight the changes on the surface of the catalyst. Further, the nature of surface intermediates was investigated by in situ FTIR studies. Based on these experimental insights, a comprehensive reaction pathway was developed and kinetic model was derived.</p><br><p></p>

scholarly journals Effects of Zr Doping into Ceria for the Dry Reforming of Methane over Ni/CeZrO2 Catalysts: In Situ Studies with XRD, XAFS, and AP-XPS

ACS Catalysis ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 3274-3284 ◽  
Author(s):  
Feng Zhang ◽  
Zongyuan Liu ◽  
Xiaobo Chen ◽  
Ning Rui ◽  
Luis E. Betancourt ◽  
...  
Keyword(s):  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
In Situ Studies

scholarly journals Dry Reforming of Methane on a Highly-Active Ni-CeO2 Catalyst: Effects of Metal-Support Interactions on C−H Bond Breaking

2016 ◽  
Vol 128 (26) ◽  
pp. 7581-7585 ◽  
Author(s):  
Zongyuan Liu ◽  
David C. Grinter ◽  
Pablo G. Lustemberg ◽  
Thuy-Duong Nguyen-Phan ◽  
Yinghui Zhou ◽  
...  
Keyword(s):  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Bond Breaking ◽  
Highly Active ◽  
Metal Support ◽  
Metal Support Interactions

Eclectic trimetallic Ni–Co–Ru catalyst for the dry reforming of methane

2020 ◽  
Vol 45 (35) ◽  
pp. 17153-17163 ◽  
Author(s):  
Nicolas Abdel Karim Aramouni ◽  
Joseph Zeaiter ◽  
Witold Kwapinski ◽  
James J. Leahy ◽  
Mohammad N. Ahmad
Keyword(s):  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Ru Catalyst
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