Roles of Surface-Active Oxygen Species on 3DOM Cobalt-Based Spinel Catalysts MxCo3–xO4 (M = Zn and Ni) for NOx-Assisted Soot Oxidation

ACS Catalysis ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 7548-7567 ◽  
Author(s):  
Minjie Zhao ◽  
Jianlin Deng ◽  
Jian Liu ◽  
Yongheng Li ◽  
Jixing Liu ◽  
...  
Keyword(s):  
Active Oxygen Species ◽  
Soot Oxidation ◽  
Active Oxygen ◽  
Oxygen Species ◽  
Surface Active ◽  
Spinel Catalysts

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

Roles of noble metals (M = Ag, Au, Pd, Pt and Rh) on CeO2 in enhancing activity toward soot oxidation: Active oxygen species and DFT calculations

2021 ◽  
Vol 403 ◽  
pp. 124085
Author(s):  
Jae Hwan Lee ◽  
Deok Yeon Jo ◽  
Jin Woo Choung ◽  
Chang Hwan Kim ◽  
Hyung Chul Ham ◽  
...  
Keyword(s):  
Dft Calculations ◽  
Noble Metals ◽  
Active Oxygen Species ◽  
Soot Oxidation ◽  
Active Oxygen ◽  
Oxygen Species

Ag-incorporated macroporous CeO2 catalysts for soot oxidation: Effects of Ag amount on the generation of active oxygen species

2019 ◽  
Vol 246 ◽  
pp. 356-366 ◽  
Author(s):  
Jae Hwan Lee ◽  
Seong Ho Lee ◽  
Jin Woo Choung ◽  
Chang Hwan Kim ◽  
Kwan-Young Lee
Keyword(s):  
Active Oxygen Species ◽  
Soot Oxidation ◽  
Active Oxygen ◽  
Oxygen Species

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.

The role of adsorbed oxygen in formic acid oxidation by Pt/TiO2 facilitated by light pre-treatment

2016 ◽  
Vol 6 (17) ◽  
pp. 6679-6687 ◽  
Author(s):  
Wibawa H. Saputera ◽  
Jason Scott ◽  
Nathania Ganda ◽  
Gary K.-C. Low ◽  
Rose Amal
Keyword(s):  
Formic Acid ◽  
Active Oxygen Species ◽  
Formic Acid Oxidation ◽  
Ambient Condition ◽  
Active Oxygen ◽  
Acid Oxidation ◽  
Oxygen Species ◽  
Surface Active ◽  
Pre Treatment

The formic acid oxidation rate by Pt/TiO2 under the ambient condition strongly depends on the presence of surface active oxygen species (PtOads and O−ads).

Characterization and functional properties of new everbearing strawberry (Fragaria x ananasa Duch.) cultivar, ‘Summertiara’ berries

2014 ◽  
Vol 4 (1) ◽  
pp. 1 ◽  
Author(s):  
Takeshi Nagai ◽  
Misuzu Tamai ◽  
Masato Sato ◽  
Yasuhiro Tanoue ◽  
Norihisa Kai ◽  
...  
Keyword(s):  
Vitamin C ◽  
Sensory Evaluation ◽  
Functional Properties ◽  
Active Oxygen Species ◽  
Active Oxygen ◽  
Antihypertensive Activity ◽  
Oxygen Species ◽  
Total Anthocyanins ◽  
Strawberry Cultivar ◽  
The Stability

Background: In recent years, a new everbearing strawberry cultivar, ‘Summertiara’ was cultivated to supply the strawberries in pre-harvest season from July to October in Japan. For highly research and development of processing of this cultivar, ‘Summertiara’ berries, the objective of this study was to characterize these berries, with relation to chemical parameters, total phenols, total flavonoids, total vitamin C, and total anthocyanins, and was to investigate the solubility and the stability of anthocyanins from the berries. Moreover, the functional properties such as antioxidative activity, active oxygen species scavenging activity, and antihypertensive activity were also evaluated.Methods: Chemical analysis, colour measurement, and sensory evaluation of new everbearing strawberry cultivar, ‘Summertiara’ berries were performed. Next, the solubility of anthocyanins from the berries and stability of these against pH, temperature, and an incandescent lighting were investigated. Moreover, functional properties of the extracts prepared from berries were elucidated using 5 different methods.Results: The contents of water, proteins, lipids, carbohydrates, and ash were the same as those of other cultivar berries. The sugar-acid ratio in the berries was low; these were acidulous. By sensory evaluation, the main factors were vivid red colour, aroma, and acidity. The berries were rich in phenols, flavonoids, vitamin C, and anthocyanins. The anthocyanins of the berries became unstable by heat treatment and light exposures such as visible rays. On the other hand, the extracts prepared from the berries showed the functionalities such as antioxidant activity, active oxygen species scavenging activities, and antihypertensive activity.  Conclusions: The strawberry cultivar, ‘Summertiara’ berries were the most suitable for processing ingredient of strawberry-derived products with superior health promoting functionalities.Keywords: Summertiara, everbearing strawberry cultivar, characterization, sensory evaluation, color and storage, functional property

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