The Influence of Preparation Procedures on Hydrogenation CO2 to Formic Acid over Supported Ru Catalysts

2014 ◽  
Vol 881-883 ◽  
pp. 283-286 ◽  
Author(s):  
Na Liu ◽  
Jie Lei ◽  
Meng Yao Li ◽  
Peng Wang
Keyword(s):  
Catalytic Activity ◽  
Formic Acid ◽  
Ruthenium Oxide ◽  
Nitrogen Adsorption ◽  
Preparation Procedure ◽  
Ru Catalysts ◽  
Optimal Activity ◽  
Adsorption Measurement ◽  
Hydrogenation Of Co ◽  
Catalytic Performances

A series of catalysts made of ruthenium loaded on γ-Al2O3 nanorods were prepared to study the effects of preparation procedure on their catalytic performances for hydrogenation CO2 to formic acid. The catalysts are characterized by XRD, nitrogen adsorption measurement and H2-TPR in detail. The results reveal that the catalytic activity is determined by the structure of supported ruthenium oxide species. The dispersion of RuOx is influenced by the preparation procedures. Optimal activity of catalyst for the hydrogenation of CO2 to formic acid is achieved over a γ-Al2O3 nanorods supported 2.0 wt% ruthenium catalyst, which is prepared by calcinations at 573 K in flowing air for 6h.

Hydrogenation CO2 to Formic Acid over Ru Supported on γ-Al2O3 Nanorods

2013 ◽  
Vol 821-822 ◽  
pp. 1330-1335 ◽  
Author(s):  
Na Liu ◽  
Rong Jun Du ◽  
Wei Li
Keyword(s):  
Catalytic Activity ◽  
Formic Acid ◽  
Nitrogen Adsorption ◽  
Hydroxyl Groups ◽  
Highly Dispersed ◽  
Adsorption Measurement

A series of catalysts made of ruthenium loaded on γ-Al2O3 and γ-Al2O3 nanorods were tested for hydrogenation CO2 to formic acid. Among these catalysts, the catalyst 2% Ru/Al (n) gave the highest activity for hydrogenation CO2 reaction with the yield of formic acid up to 13.6 mmol /h. The excellent catalytic activity is related to the highly dispersed ruthenium species on the surface of support and abundant hydroxyl groups of the support. The dispersion of ruthenium species and the hydroxyl groups of supports were studied by characterization of XRD, nitrogen adsorption measurement, TEM, D2/exchange and H2-TPR in detail. The γ-Al2O3 nanorods lead to the highly dispersed ruthenium species and abundant hydroxyl groups, which appears to be more effective for hydrogenation CO2 to formic acid.

Enhancing catalytic activity and stability for CO2 methanation on Ni–Ru/γ-Al2O3via modulating impregnation sequence and controlling surface active species

RSC Advances ◽  
2014 ◽  
Vol 4 (32) ◽  
pp. 16472-16479 ◽  
Author(s):  
Wenlong Zhen ◽  
Bo Li ◽  
Gongxuan Lu ◽  
Jiantai Ma
Keyword(s):  
Catalytic Activity ◽  
Catalytic Properties ◽  
Active Species ◽  
Surface Species ◽  
Co2 Methanation ◽  
Ru Catalysts ◽  
Structure Surface ◽  
Surface Active ◽  
Species Segregation ◽  
Catalytic Performances

Co-impregnation and sequential impregnation were used to prepare a series of Ni–Ru/γ-Al2O3 catalysts for CO2 methanation. By comparing the structure, surface species and catalytic performances, we uncovered the surface species segregation of Ru in Ni–Ru catalysts, and its effect on catalytic properties.

Heterogenized Catalyst for the Hydrogenation of CO 2 to Formic Acid or Its Derivatives

2021 ◽  
pp. 149-177
Author(s):  
Kwangho Park ◽  
Gunniya Hariyanandam Gunasekar ◽  
Sungho Yoon
Keyword(s):  
Formic Acid ◽  
Heterogenized Catalyst ◽  
Hydrogenation Of Co

Electrodeposited PdNi2 alloy with novelly enhanced catalytic activity for electrooxidation of formic acid

2010 ◽  
Vol 12 (6) ◽  
pp. 843-846 ◽  
Author(s):  
Chunyu Du ◽  
Meng Chen ◽  
Wengang Wang ◽  
Geping Yin ◽  
Pengfei Shi
Keyword(s):  
Catalytic Activity ◽  
Formic Acid

Continuous-flow formic acid production from the hydrogenation of CO2 without any base

2021 ◽  
Vol 23 (5) ◽  
pp. 1978-1982
Author(s):  
Zhaofu Zhang ◽  
Shuaishuai Liu ◽  
Minqiang Hou ◽  
Guangying Yang ◽  
Buxing Han
Keyword(s):  
Formic Acid ◽  
Continuous Flow ◽  
Acid Production ◽  
Hydrogenation Of Co2 ◽  
Hydrogenation Of Co

Continuous-flow formic acid production from the hydrogenation of CO2 without any base, and the concentration of formic acid by electrodialysis was tested both offline and online.

Non-mercury catalytic acetylene hydrochlorination over Ru catalysts enhanced by carbon nanotubes

RSC Advances ◽  
2015 ◽  
Vol 5 (12) ◽  
pp. 9002-9008 ◽  
Author(s):  
Guangbi Li ◽  
Wei Li ◽  
Haiyang Zhang ◽  
Yanfeng Pu ◽  
Mengxia Sun ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Catalytic Activity ◽  
Acetylene Hydrochlorination ◽  
Ru Catalysts ◽  
Inner Diameter

Ru catalysts deposited inside the channels of the CNTs show higher catalytic activity. Ru-in-CNT catalyst exhibited an acetylene conversion of 95.0% at 170 °C and 10 h. CNTs with an inner diameter of 3–7 nm can functionalize as an efficient support.

A Ag–Pd alloy supported on an amine-functionalized UiO-66 as an efficient synergetic catalyst for the dehydrogenation of formic acid at room temperature

2016 ◽  
Vol 6 (3) ◽  
pp. 869-874 ◽  
Author(s):  
Shu-Tao Gao ◽  
Weihua Liu ◽  
Cheng Feng ◽  
Ning-Zhao Shang ◽  
Chun Wang
Keyword(s):  
Catalytic Activity ◽  
Formic Acid ◽  
Room Temperature ◽  
High Catalytic Activity ◽  
Amine Functionalized ◽  
Pd Alloy

Ag–Pd alloys deposited on an amine-functionalized UiO-66(NH2–UiO-66) have been successfully prepared via a pre-coordination method and used as a AgPd@NH2–UiO-66 catalyst with 100% H2 selectivity and a high catalytic activity.

The catalytic activity of bimetallic Pt—Pd polymer nanocomposites in formic acid oxidation

2017 ◽  
Vol 66 (3) ◽  
pp. 474-478 ◽  
Author(s):  
N. A. Yashtulov ◽  
M. V. Lebedeva ◽  
N. V. Myasnikova ◽  
A. V. Ragutkin ◽  
V. R. Flid
Keyword(s):  
Catalytic Activity ◽  
Formic Acid ◽  
Polymer Nanocomposites ◽  
Formic Acid Oxidation ◽  
Acid Oxidation
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