V-modified Co3O4nanorods with superior catalytic activity and thermostability for CO oxidation

CrystEngComm ◽  
2018 ◽  
Vol 20 (35) ◽  
pp. 5191-5199 ◽  
Author(s):  
Kun Wang ◽  
Baolin Liu ◽  
Yali Cao ◽  
Yizhao Li ◽  
Dianzeng Jia
Keyword(s):  
Catalytic Activity ◽  
Solid State ◽  
Co Oxidation ◽  
High Catalytic Activity ◽  
State Chemical ◽  
Chemical Strategy

Solid-state chemical strategy was applied to synthesize V-modified Co3O4nanorods with high catalytic activity and thermostability for CO oxidation.

scholarly journals CO Oxidation Efficiency and Hysteresis Behavior over Mesoporous Pd/SiO2 Catalyst

Catalysts ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 131 ◽  
Author(s):  
Rola Mohammad Al Soubaihi ◽  
Khaled Mohammad Saoud ◽  
Myo Tay Zar Myint ◽  
Mats A. Göthelid ◽  
Joydeep Dutta
Keyword(s):  
Carbon Monoxide ◽  
Catalytic Activity ◽  
Co Oxidation ◽  
Active Sites ◽  
Bond Activation ◽  
Dissociative Adsorption ◽  
High Catalytic Activity ◽  
Good Catalytic Activity ◽  
Pretreatment Conditions ◽  
Oxidation Efficiency

Carbon monoxide (CO) oxidation is considered an important reaction in heterogeneous industrial catalysis and has been extensively studied. Pd supported on SiO2 aerogel catalysts exhibit good catalytic activity toward this reaction owing to their CO bond activation capability and thermal stability. Pd/SiO2 catalysts were investigated using carbon monoxide (CO) oxidation as a model reaction. The catalyst becomes active, and the conversion increases after the temperature reaches the ignition temperature (Tig). A normal hysteresis in carbon monoxide (CO) oxidation has been observed, where the catalysts continue to exhibit high catalytic activity (CO conversion remains at 100%) during the extinction even at temperatures lower than Tig. The catalyst was characterized using BET, TEM, XPS, TGA-DSC, and FTIR. In this work, the influence of pretreatment conditions and stability of the active sites on the catalytic activity and hysteresis is presented. The CO oxidation on the Pd/SiO2 catalyst has been attributed to the dissociative adsorption of molecular oxygen and the activation of the C-O bond, followed by diffusion of adsorbates at Tig to form CO2. Whereas, the hysteresis has been explained by the enhanced stability of the active site caused by thermal effects, pretreatment conditions, Pd-SiO2 support interaction, and PdO formation and decomposition.

CO Oxidation on Inverse CeOx/Cu(111) Catalysts: High Catalytic Activity and Ceria-Promoted Dissociation of O2

2011 ◽  
Vol 133 (10) ◽  
pp. 3444-3451 ◽  
Author(s):  
Fan Yang ◽  
Jesús Graciani ◽  
Jaime Evans ◽  
Ping Liu ◽  
Jan Hrbek ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Co Oxidation ◽  
High Catalytic Activity

Synthesis and characterization of new isostructural series LnFe0.5Sb1.5O6 (Ln = La-Sm) exhibiting high catalytic activity in CO oxidation

2019 ◽  
Vol 777 ◽  
pp. 655-662 ◽  
Author(s):  
A.V. Egorysheva ◽  
O.G. Ellert ◽  
E. Yu Liberman ◽  
D.I. Kirdyankin ◽  
S.V. Golodukhina ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Co Oxidation ◽  
Synthesis And Characterization ◽  
High Catalytic Activity

High catalytic activity for CO oxidation on single Fe atom stabilized in graphene vacancies

RSC Advances ◽  
2016 ◽  
Vol 6 (96) ◽  
pp. 93985-93996 ◽  
Author(s):  
Yanan Tang ◽  
Jincheng Zhou ◽  
Zigang Shen ◽  
Weiguang Chen ◽  
Chenggang Li ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Co Oxidation ◽  
First Principles ◽  
High Catalytic Activity ◽  
First Principles Method

The geometric, electronic and catalytic characters of Fe atom embedded graphene (including monovacancy and divacancy) are investigated using the first-principles method, which gives a reference on designing graphene-based catalysts for CO oxidation.

Conductive MOFs as bifunctional oxygen electrocatalysts for all-solid-state Zn–air batteries

2020 ◽  
Vol 56 (88) ◽  
pp. 13615-13618 ◽  
Author(s):  
Na Pan ◽  
Hanwen Zhang ◽  
Bo Yang ◽  
Hui Qiu ◽  
Longyan Li ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Solid State ◽  
High Catalytic Activity ◽  
Bifunctional Electrocatalyst ◽  
New Class

A new class of conductive MOFs can be directly used as a bifunctional electrocatalyst for both the ORR and OER. By adding Ru into the pristine MOF, the resultant catalyst exhibits high catalytic activity in all-solid-state Zn–air batteries.

scholarly journals New gold standard: weakly capped infant Au nanoclusters with record high catalytic activity for 4-nitrophenol reduction and hydrogen generation from an ammonia borane–sodium borohydride mixture

2020 ◽  
Vol 2 (11) ◽  
pp. 5384-5395
Author(s):  
Dinabandhu Patra ◽  
Srinivasa Rao Nalluri ◽  
Hui Ru Tan ◽  
Mohammad S. M. Saifullah ◽  
Ramakrishnan Ganesan ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Citric Acid ◽  
Solid State ◽  
Gold Standard ◽  
Active Sites ◽  
Hydrogen Generation ◽  
High Catalytic Activity ◽  
Au Nanoclusters ◽  
Nitrophenol Reduction ◽  
Rapid Dissolution

Active sites are preserved in the citric acid-capped Au nanoclusters prepared in solid state. In water, the rapid dissolution of citric acid allows the reactants to easily access the active sites of infant Au nanoclusters leading to faster catalysis.

Preparation of TiO2-supported twinned gold nanoparticles by CO treatment and their CO oxidation activity

2015 ◽  
Vol 51 (87) ◽  
pp. 15823-15826 ◽  
Author(s):  
Junya Ohyama ◽  
Taiki Koketsu ◽  
Yuta Yamamoto ◽  
Shigeo Arai ◽  
Atsushi Satsuma
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Activity ◽  
Co Oxidation ◽  
Au Nanoparticles ◽  
High Catalytic Activity ◽  
Oxidation Activity

Au/TiO2 prepared by CO treatment showed high catalytic activity for CO oxidation due to twinned structure of Au nanoparticles.

A highly moisture-resistant Fe-doped mesoporous Co3O4 catalyst for efficient low-temperature CO oxidation

2015 ◽  
Vol 39 (3) ◽  
pp. 1742-1748 ◽  
Author(s):  
Gengnan Li ◽  
Liang Li ◽  
Yongsheng Li ◽  
Jianlin Shi
Keyword(s):  
Catalytic Activity ◽  
Low Temperature ◽  
Co Oxidation ◽  
High Catalytic Activity ◽  
Low Temperature Co Oxidation ◽  
Moisture Conditions ◽  
Moisture Resistant

Compared with pure Co3O4 spinel, the Fe-doped catalyst demonstrates high catalytic activity and stability in low temperature CO oxidation under moisture conditions.

Origin of extraordinarily high catalytic activity of Co3O4 and its morphological chemistry for CO oxidation at low temperature

2012 ◽  
Vol 296 ◽  
pp. 110-119 ◽  
Author(s):  
Hai-Feng Wang ◽  
Richard Kavanagh ◽  
Yang-Long Guo ◽  
Yun Guo ◽  
Guanzhong Lu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Low Temperature ◽  
Co Oxidation ◽  
High Catalytic Activity
Sign in / Sign up

Export Citation Format

Share Document