The synergistic effect in Co–Ce oxides for catalytic oxidation of diesel soot

2015 ◽  
Vol 5 (2) ◽  
pp. 1084-1092 ◽  
Author(s):  
Guchu Zou ◽  
Yao Xu ◽  
Shujie Wang ◽  
Mingxia Chen ◽  
Wenfeng Shangguan
Keyword(s):  
Synergistic Effect ◽  
Catalytic Oxidation ◽  
Oxygen Vacancies ◽  
Active Oxygen Species ◽  
Diesel Soot ◽  
Active Oxygen ◽  
Oxygen Species ◽  
Soot Combustion ◽  
Redox Ability

Oact: active oxygen species. C*[O]: carbon–oxygen intermediate. The synergistic effect in Co–Ce catalyst leads to more oxygen vacancies and enhanced redox ability, thus assisting soot combustion.

scholarly journals Diesel Soot Combustion over Mn 2 O 3 Catalysts with Different Morphologies: Elucidating the Role of Active Oxygen Species in Soot Combustion

2020 ◽  
Vol 15 (13) ◽  
pp. 2005-2014 ◽  
Author(s):  
Yasutaka Kuwahara ◽  
Genki Kato ◽  
Akihiro Fujibayashi ◽  
Kohsuke Mori ◽  
Hiromi Yamashita
Keyword(s):  
Active Oxygen Species ◽  
Diesel Soot ◽  
Active Oxygen ◽  
Oxygen Species ◽  
Soot Combustion

Synergistic effect of Cu on a Ag-loaded CeO2 catalyst for soot oxidation with improved generation of active oxygen species and reducibility

Fuel ◽  
2020 ◽  
Vol 275 ◽  
pp. 117930 ◽  
Author(s):  
Jae Hwan Lee ◽  
Byung Jin Lee ◽  
Dae-Won Lee ◽  
Jin Woo Choung ◽  
Chang Hwan Kim ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Active Oxygen Species ◽  
Soot Oxidation ◽  
Active Oxygen ◽  
Oxygen Species

scholarly journals Active Oxygen Species Promoted Catalytic Oxidation of 5-Hydroxymethyl-2-furfural on Facet-Specific Pt Nanocrystals

ACS Catalysis ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 8306-8315 ◽  
Author(s):  
Yaqi Liu ◽  
Hong-Yan Ma ◽  
Da Lei ◽  
Lan-Lan Lou ◽  
Shuangxi Liu ◽  
...  
Keyword(s):  
Catalytic Oxidation ◽  
Active Oxygen Species ◽  
Active Oxygen ◽  
Oxygen Species ◽  
Pt Nanocrystals

Active oxygen species on Mg–La mixed oxides: the effect of Mg and La oxide interactions

2017 ◽  
Vol 7 (4) ◽  
pp. 797-801 ◽  
Author(s):  
Xianyuan Wu ◽  
Zheng Fang ◽  
Hui Pan ◽  
Yifan Zheng ◽  
Dahao Jiang ◽  
...  
Keyword(s):  
Strong Interaction ◽  
Mixed Oxide ◽  
Oxygen Vacancies ◽  
Mixed Oxides ◽  
Active Oxygen Species ◽  
Active Oxygen ◽  
Oxygen Species ◽  
Mixed Oxide Catalysts ◽  
Oxidative Reactions ◽  
Adsorbed Oxygen Species

Mg–La mixed oxide catalysts with a strong interaction between Mg and La oxides had higher amounts of oxygen vacancies and surface adsorbed oxygen species, resulting in a better performance in H2 oxidation and CH4 oxidative reactions.

Identification of active oxygen species for soot combustion on LaMnO3 perovskite

2012 ◽  
Vol 2 (9) ◽  
pp. 1822 ◽  
Author(s):  
Xiao Wang ◽  
Yexin Zhang ◽  
Qian Li ◽  
Zhongpeng Wang ◽  
Zhaoliang Zhang
Keyword(s):  
Active Oxygen Species ◽  
Active Oxygen ◽  
Oxygen Species ◽  
Soot Combustion

scholarly journals Oxygen-vacancy-promoted catalytic wet air oxidation of phenol from MnOx–CeO2

RSC Advances ◽  
2017 ◽  
Vol 7 (43) ◽  
pp. 27079-27088 ◽  
Author(s):  
Changjian Ma ◽  
Yaoyao Wen ◽  
Qingqing Yue ◽  
Anqi Li ◽  
Jile Fu ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Oxygen Vacancies ◽  
Active Oxygen Species ◽  
Active Oxygen ◽  
Phenol Oxidation ◽  
Oxygen Species ◽  
Catalytic Wet Air Oxidation ◽  
Air Oxidation ◽  
Wet Air Oxidation ◽  
Oxidation Of Phenol

The presence of oxygen vacancies can promote the formation of active oxygen species, which is essential for phenol oxidation.

scholarly journals Influence of alkali earth metals on Ce/TiO2 catalyst for selective catalytic reduction of NO with NH3

2020 ◽  
Vol 194 ◽  
pp. 04012
Author(s):  
Hao Peng ◽  
Rui-tang Guo ◽  
He Lin
Keyword(s):  
Fly Ash ◽  
Catalytic Reduction ◽  
Active Oxygen Species ◽  
Active Oxygen ◽  
Oxygen Species ◽  
Scr Catalyst ◽  
Reduction Of No ◽  
Alkali Earth ◽  
Poisoning Effect ◽  
Redox Ability

The salts of alkali earth metals (Ca and Mg) in fly ash have a deactivation effect on SCR catalyst. In this study, the poisoning effect of Ca and Mg on Mn/TiO2 catalyst was investigated and explained based on experimental and characterization results of BET, XRD, H2-TPR, NH3-TPD and XPS. It was found that the deactivation effect of Ca is more obvious than that of Mg. The results showed that the drop of redox ability and Brønsted acidity, and the decrease of active oxygen species led to the decrease of Ca-Ce/TiO2 and Mg-Ce/TiO2.

The Effect of Synthesis Methods on Active Oxygen Species of MnOx-CuO in Soot Combustion

2021 ◽  
Author(s):  
Jie Wang ◽  
Changsen Zhang ◽  
Yuhang Wang ◽  
Wenjun Chen ◽  
Zihan Li ◽  
...  
Keyword(s):  
Active Oxygen Species ◽  
Active Oxygen ◽  
Synthesis Methods ◽  
Oxygen Species ◽  
Soot Combustion

Ce0.80M0.12Sn0.08O2−δ (M = Hf, Zr, Pr, and La) ternary oxide solid solutions with superior properties for CO oxidation

RSC Advances ◽  
2015 ◽  
Vol 5 (38) ◽  
pp. 30275-30285 ◽  
Author(s):  
Damma Devaiah ◽  
Takuya Tsuzuki ◽  
Thirupathi Boningari ◽  
Panagiotis G. Smirniotis ◽  
Benjaram M. Reddy
Keyword(s):  
Co Oxidation ◽  
Oxygen Vacancies ◽  
Active Oxygen Species ◽  
High Specific Surface Area ◽  
Active Oxygen ◽  
Ternary Oxide ◽  
Oxygen Species ◽  
Oxidation Activity ◽  
Superior Surface ◽  
Surface Active

Ce0.80Pr0.12Sn0.08O2−δ combination catalyst exhibited highest CO oxidation activity owing to its high specific surface area, better reducibility, superior surface active oxygen species, and oxygen vacancies among various samples investigated.

The adsorption and catalytic oxidation of the element mercury over cobalt modified Ce–ZrO2 catalyst

RSC Advances ◽  
2016 ◽  
Vol 6 (91) ◽  
pp. 88332-88339 ◽  
Author(s):  
X. P. Zhang ◽  
Y. Z. Cui ◽  
B. J. Tan ◽  
J. X. Wang ◽  
Z. F. Li ◽  
...  
Keyword(s):  
Catalytic Oxidation ◽  
Removal Efficiency ◽  
Active Oxygen Species ◽  
Active Oxygen ◽  
Oxygen Species ◽  
Surface Active ◽  
Zro2 Catalyst ◽  
Element Mercury

Co modification dramatically enhances Hg0 removal efficiency because of the increased surface active oxygen species.

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