Abstract
Series of MnO x catalysts were synthesized through oxalate route and calcined at facile temperatures. Characterizations through XRD, N 2 -adsorption/desorption, HRTEM, C 6 H 6 -TPD, O 2 -TPD, XPS, and H 2 -TPR revealed that MnO x calcined at 250 °C (N250) with a main crystal phase of Mn 2 O 3 showed micro-mesopores and largest specific surface area, and therefore had a high adsorption capacity of C 6 H 6 . N250 also presented better oxygen mobility, rich surface adsorbed oxygen species (O ads ), and proper ratio of surface Mn 4+ /Mn 3+ . The starting temperature of H 2 -TPR of N250 was the lowest among the obtained MnO x samples. As a result, N250 exhibited the lowest T 90 value of 191 °C in C 6 H 6 thermal catalytic oxidation (WHSV 60,000 mL g cat . −1 h −1 , initial C 6 H 6 concentration 190 ppm) among all the catalysts, and this T 90 value is lower than those reported in many research. At last, a potential reaction pathway was proposed according to the results of in-situ FTIR measurement.
| Original language | English |
|---|---|
| Journal | Catalysis Surveys from Asia |
| DOIs | |
| Publication status | Published - Jan 1 2019 |
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All Science Journal Classification (ASJC) codes
- Catalysis
- Chemistry(all)
Cite this
Catalytic Removal of Benzene at Mild Temperature over Manganese Oxide Catalysts. / Guo, Hao; Zhang, Zhixiang; Hojo, Hajime; Chen, Mingxia; Einaga, Hisahiro; Shangguan, Wenfeng.
In: Catalysis Surveys from Asia, 01.01.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Catalytic Removal of Benzene at Mild Temperature over Manganese Oxide Catalysts
AU - Guo, Hao
AU - Zhang, Zhixiang
AU - Hojo, Hajime
AU - Chen, Mingxia
AU - Einaga, Hisahiro
AU - Shangguan, Wenfeng
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Series of MnO x catalysts were synthesized through oxalate route and calcined at facile temperatures. Characterizations through XRD, N 2 -adsorption/desorption, HRTEM, C 6 H 6 -TPD, O 2 -TPD, XPS, and H 2 -TPR revealed that MnO x calcined at 250 °C (N250) with a main crystal phase of Mn 2 O 3 showed micro-mesopores and largest specific surface area, and therefore had a high adsorption capacity of C 6 H 6 . N250 also presented better oxygen mobility, rich surface adsorbed oxygen species (O ads ), and proper ratio of surface Mn 4+ /Mn 3+ . The starting temperature of H 2 -TPR of N250 was the lowest among the obtained MnO x samples. As a result, N250 exhibited the lowest T 90 value of 191 °C in C 6 H 6 thermal catalytic oxidation (WHSV 60,000 mL g cat . −1 h −1 , initial C 6 H 6 concentration 190 ppm) among all the catalysts, and this T 90 value is lower than those reported in many research. At last, a potential reaction pathway was proposed according to the results of in-situ FTIR measurement.
AB - Series of MnO x catalysts were synthesized through oxalate route and calcined at facile temperatures. Characterizations through XRD, N 2 -adsorption/desorption, HRTEM, C 6 H 6 -TPD, O 2 -TPD, XPS, and H 2 -TPR revealed that MnO x calcined at 250 °C (N250) with a main crystal phase of Mn 2 O 3 showed micro-mesopores and largest specific surface area, and therefore had a high adsorption capacity of C 6 H 6 . N250 also presented better oxygen mobility, rich surface adsorbed oxygen species (O ads ), and proper ratio of surface Mn 4+ /Mn 3+ . The starting temperature of H 2 -TPR of N250 was the lowest among the obtained MnO x samples. As a result, N250 exhibited the lowest T 90 value of 191 °C in C 6 H 6 thermal catalytic oxidation (WHSV 60,000 mL g cat . −1 h −1 , initial C 6 H 6 concentration 190 ppm) among all the catalysts, and this T 90 value is lower than those reported in many research. At last, a potential reaction pathway was proposed according to the results of in-situ FTIR measurement.
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UR - http://www.scopus.com/inward/citedby.url?scp=85061725034&partnerID=8YFLogxK
U2 - 10.1007/s10563-019-09268-2
DO - 10.1007/s10563-019-09268-2
M3 - Article
JO - Catalysis Surveys from Asia
JF - Catalysis Surveys from Asia
SN - 1571-1013
ER -