Praseodymium hydroxide/gold-supported precursor: a new strategy for preparing stable and active catalyst for the water-gas shift reaction

2020 ◽  
Vol 10 (21) ◽  
pp. 7291-7301
Author(s):  
Junjie Shi ◽  
Hailian Li ◽  
Weixuan Zhao ◽  
Pengfei Qi ◽  
Hongxin Wang
Keyword(s):  
Heterogeneous Catalysis ◽  
High Activity ◽  
Active Catalyst ◽  
Water Gas Shift ◽  
Great Promise ◽  
Water Gas Shift Reaction ◽  
New Strategy ◽  
O Vacancy ◽  
Shift Reaction ◽  
Water Gas

Rod-shaped praseodymium hydroxide (Pr(OH)x) as a hydroxyl- and O vacancy-rich support can promote the dispersion and stabilization of Au species show high activity and stability for water gas shift reaction, and holds great promise in the field of heterogeneous catalysis.

Nanoporous gold functionalized with praseodymia–titania mixed oxides as a stable catalyst for the water–gas shift reaction

2019 ◽  
Vol 21 (6) ◽  
pp. 3278-3286 ◽  
Author(s):  
Junjie Shi ◽  
Arne Wittstock ◽  
Christoph Mahr ◽  
M. Mangir Murshed ◽  
Thorsten M. Gesing ◽  
...  
Keyword(s):  
Heterogeneous Catalysis ◽  
Mixed Oxides ◽  
Nanoporous Gold ◽  
Water Gas Shift ◽  
Great Promise ◽  
Water Gas Shift Reaction ◽  
Nanoporous Metals ◽  
Inverse Catalyst ◽  
Shift Reaction ◽  
Water Gas

Dealloyed nanoporous metals hold great promise in the field of heterogeneous catalysis. In our work, we succeeded to prepare a stable and very active inverse catalyst for the water gas shift reaction by depositing Pr1Ti2Ox on nanoporous gold.

scholarly journals Activity of La0.75Sr0.25Cr0.5Mn0.5O3−δ, Ni3Sn2 and Gd-doped CeO2 towards the reverse water-gas shift reaction and carburisation for a high-temperature H2O/CO2 co-electrolysis

RSC Advances ◽  
2020 ◽  
Vol 10 (17) ◽  
pp. 10285-10296
Author(s):  
Nicky Bogolowski ◽  
Beatriz Sánchez Batalla ◽  
Baekkyoung Shin ◽  
Jean-Francois Drillet
Keyword(s):  
High Temperature ◽  
High Activity ◽  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
Reverse Water Gas Shift ◽  
Rwgs Reaction ◽  
Doped Ceo2 ◽  
Shift Reaction ◽  
Water Gas

LSCrM, Ni3Sn2 and GDC20 powders show high activity and selectivity for the RWGS reaction.

An active catalyst for the water gas shift reaction using a rhodium carbonyl cluster—diamine system

1980 ◽  
Vol 9 (2) ◽  
pp. 227-230 ◽  
Author(s):  
Kiyotomi Kaneda ◽  
Masahiko Hiraki ◽  
Kotaro Sano ◽  
Toshinobu Imanaka ◽  
Shiichiro Teranishi
Keyword(s):  
Active Catalyst ◽  
Water Gas Shift ◽  
Carbonyl Cluster ◽  
Water Gas Shift Reaction ◽  
Shift Reaction ◽  
Water Gas

Fabrication of CeO2 nanotube supported Pt catalyst encapsulated with silica for high and stable performance

2015 ◽  
Vol 51 (48) ◽  
pp. 9785-9788 ◽  
Author(s):  
Chao Wan ◽  
Dang-guo Cheng ◽  
Fengqiu Chen ◽  
Xiaoli Zhan
Keyword(s):  
High Activity ◽  
Water Gas Shift ◽  
Pt Catalyst ◽  
Water Gas Shift Reaction ◽  
Stable Performance ◽  
Shift Reaction ◽  
Water Gas ◽  
Supported Pt Catalyst

Pt/CeO2 nanotubes encapsulated with silica exhibit high activity and stability for the water–gas-shift reaction.

Methanation of Carbon Monoxide with Water over Supported Rhodium Catalysts.

1985 ◽  
Vol 38 (2) ◽  
pp. 293 ◽  
Author(s):  
Y Tanaka ◽  
T Iizuka
Keyword(s):  
Carbon Monoxide ◽  
Low Temperature ◽  
High Activity ◽  
Water Gas Shift ◽  
Rhodium Catalysts ◽  
Water Gas Shift Reaction ◽  
Carbonaceous Species ◽  
Co Dissociation ◽  
Shift Reaction ◽  
Water Gas

The formation of methane in the reaction of CO and H2O over Rh supported on ZrO2, Al2O3, TiO2, SiO2 and MgO was examined. The high activity was achieved over Rh/ZrO2 and Rh/TiO2 at 300°C and CO dissociation ability of the catalyst was concluded to be an important factor to obtain high activity. At low temperature (c. 200°C), CO was not hydrogenated effectively but CO2 formed by the water gas shift reaction was hydrogenated after the conversion of CO into CO2 was completed. The formation of CH4 appears to occur through the water gas shift reaction, followed by the hydrogenation of carbonaceous species formed by the dissociation of CO or CO2.

Water Gas May Not Shift in Deep Earth

2020 ◽  
Author(s):  
Nore Stolte ◽  
Junting Yu ◽  
Zixin Chen ◽  
Dimitri A. Sverjensky ◽  
Ding Pan
Keyword(s):  
Formic Acid ◽  
Upper Mantle ◽  
Free Energy Calculations ◽  
Water Gas Shift ◽  
Ab Initio Molecular Dynamics ◽  
Water Gas Shift Reaction ◽  
Carbon Carrier ◽  
Deep Earth ◽  
Shift Reaction ◽  
Water Gas

The water-gas shift reaction is a key reaction in Fischer-Tropsch-type synthesis, which is widely believed to generate hydrocarbons in the deep carbon cycle, but is little known at extreme pressure-temperature conditions found in Earth’s upper mantle. Here, we performed extensive ab initio molecular dynamics simulations and free energy calculations to study the water-gas shift reaction. We found the direct formation of formic acid out of CO and supercritical water at 10∼13 GPa and 1400 K without any catalyst. Contrary to the common assumption that formic acid or formate is an intermediate product, we found that HCOOH is thermodynamically more stable than the products of the water-gas shift reaction above 3 GPa and at 1000∼1400 K. Our study suggests that the water-gas shift reaction may not happen in Earth’s upper mantle, and formic acid or formate may be an important carbon carrier, participating in many geochemical processes in deep Earth.<br>

Li2ZrO3 Nanoparticles as Absorbent for in-Situ Removal of CO2 in Water-Gas Shift Reaction to Enhance H2 Production

2013 ◽  
Vol 33 (9) ◽  
pp. 1572-1577 ◽  
Author(s):  
Yuanzhuo ZHANG ◽  
Ziying YU ◽  
Fumin ZHANG ◽  
Qiang XIAO ◽  
Yijun ZHONG ◽  
...  
Keyword(s):  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
Shift Reaction ◽  
Water Gas
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