Effective low-temperature catalytic abatement of benzene over porous Mn-Ni composite oxides synthesized via the oxalate route

Hao Guo, Yizhuo Li, Zhi Jiang, Zhixiang Zhang, Mingxia Chen, Hisahiro Einaga, Wenfeng Shangguan

Research output: Contribution to journalArticle

Abstract

BACKGROUND: Benzene (C6H6) is a typical kind of volatile organic compound (VOC) which can exert great harm to both human health and the environment, and, thus, which needs to be eliminated before its emission. In this work, porous manganese–nickel (Mn-Ni) composite oxide catalysts were synthesized through the oxalate route and applied to thermal catalytic oxidation of C6H6. By means of activity tests and relative physico-chemical characterizations, the factors affecting the activity of those Mn-Ni composite oxides were explored. RESULTS: Nitrogen (N2)-adsorption/desorption and X-ray photoelectron spectroscopy (XPS) measurements indicated that the Brunauer–Elmett–Teller (BET) surface area and the content of surface-adsorbed oxygen species were increased due to the addition of Ni into Mn oxide (MnOx). Meanwhile, the oxygen mobility and reducibility also were improved in the Mn-Ni composite oxides. Accordingly, compared with MnOx, the Mn-Ni catalysts showed higher activity for thermal catalytic oxidation of C6H6. Moreover, porous Mn-Ni composite oxides with a Mn:Ni molar ratio of 4:1 (Mn4Ni1) displayed the best catalytic activity. Further investigation indicated that the excellent catalytic performance of Mn4Ni1 composite oxides could be ascribed mainly to the larger BET surface area and the richer content of surface-adsorbed oxygen species, as well as stronger oxygen mobility and better reducibility compared with other Mn-Ni catalysts. CONCLUSIONS: The Mn4Ni1 composite oxides showed a lowest T90 value of 172 °C (C6H6 concentration 200 ppm, WHSV 60 000 mL g−1 h−1) among all of the obtained Mn-Ni composite oxides. Moreover, it also exhibited favourable catalytic stability at 210 °C in the presence or absence of moisture.

Original languageEnglish
JournalJournal of Chemical Technology and Biotechnology
DOIs
Publication statusAccepted/In press - Jan 1 2019

Fingerprint

Oxalates
oxalate
Benzene
Oxides
benzene
oxide
Temperature
Composite materials
Oxygen
oxygen
Catalytic oxidation
catalyst
Catalysts
surface area
Hot Temperature
oxidation
Volatile Organic Compounds
Photoelectron Spectroscopy
Volatile organic compounds
X-ray spectroscopy

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Chemical Engineering(all)
  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Waste Management and Disposal
  • Pollution
  • Organic Chemistry
  • Inorganic Chemistry

Cite this

Effective low-temperature catalytic abatement of benzene over porous Mn-Ni composite oxides synthesized via the oxalate route. / Guo, Hao; Li, Yizhuo; Jiang, Zhi; Zhang, Zhixiang; Chen, Mingxia; Einaga, Hisahiro; Shangguan, Wenfeng.

In: Journal of Chemical Technology and Biotechnology, 01.01.2019.

Research output: Contribution to journalArticle

@article{a6425967539745a4ae7e5e2e40aba34c,
title = "Effective low-temperature catalytic abatement of benzene over porous Mn-Ni composite oxides synthesized via the oxalate route",
abstract = "BACKGROUND: Benzene (C6H6) is a typical kind of volatile organic compound (VOC) which can exert great harm to both human health and the environment, and, thus, which needs to be eliminated before its emission. In this work, porous manganese–nickel (Mn-Ni) composite oxide catalysts were synthesized through the oxalate route and applied to thermal catalytic oxidation of C6H6. By means of activity tests and relative physico-chemical characterizations, the factors affecting the activity of those Mn-Ni composite oxides were explored. RESULTS: Nitrogen (N2)-adsorption/desorption and X-ray photoelectron spectroscopy (XPS) measurements indicated that the Brunauer–Elmett–Teller (BET) surface area and the content of surface-adsorbed oxygen species were increased due to the addition of Ni into Mn oxide (MnOx). Meanwhile, the oxygen mobility and reducibility also were improved in the Mn-Ni composite oxides. Accordingly, compared with MnOx, the Mn-Ni catalysts showed higher activity for thermal catalytic oxidation of C6H6. Moreover, porous Mn-Ni composite oxides with a Mn:Ni molar ratio of 4:1 (Mn4Ni1) displayed the best catalytic activity. Further investigation indicated that the excellent catalytic performance of Mn4Ni1 composite oxides could be ascribed mainly to the larger BET surface area and the richer content of surface-adsorbed oxygen species, as well as stronger oxygen mobility and better reducibility compared with other Mn-Ni catalysts. CONCLUSIONS: The Mn4Ni1 composite oxides showed a lowest T90 value of 172 °C (C6H6 concentration 200 ppm, WHSV 60 000 mL g−1 h−1) among all of the obtained Mn-Ni composite oxides. Moreover, it also exhibited favourable catalytic stability at 210 °C in the presence or absence of moisture.",
author = "Hao Guo and Yizhuo Li and Zhi Jiang and Zhixiang Zhang and Mingxia Chen and Hisahiro Einaga and Wenfeng Shangguan",
year = "2019",
month = "1",
day = "1",
doi = "10.1002/jctb.6280",
language = "English",
journal = "Journal of Chemical Technology and Biotechnology",
issn = "0268-2575",
publisher = "John Wiley and Sons Ltd",

}

TY - JOUR

T1 - Effective low-temperature catalytic abatement of benzene over porous Mn-Ni composite oxides synthesized via the oxalate route

AU - Guo, Hao

AU - Li, Yizhuo

AU - Jiang, Zhi

AU - Zhang, Zhixiang

AU - Chen, Mingxia

AU - Einaga, Hisahiro

AU - Shangguan, Wenfeng

PY - 2019/1/1

Y1 - 2019/1/1

N2 - BACKGROUND: Benzene (C6H6) is a typical kind of volatile organic compound (VOC) which can exert great harm to both human health and the environment, and, thus, which needs to be eliminated before its emission. In this work, porous manganese–nickel (Mn-Ni) composite oxide catalysts were synthesized through the oxalate route and applied to thermal catalytic oxidation of C6H6. By means of activity tests and relative physico-chemical characterizations, the factors affecting the activity of those Mn-Ni composite oxides were explored. RESULTS: Nitrogen (N2)-adsorption/desorption and X-ray photoelectron spectroscopy (XPS) measurements indicated that the Brunauer–Elmett–Teller (BET) surface area and the content of surface-adsorbed oxygen species were increased due to the addition of Ni into Mn oxide (MnOx). Meanwhile, the oxygen mobility and reducibility also were improved in the Mn-Ni composite oxides. Accordingly, compared with MnOx, the Mn-Ni catalysts showed higher activity for thermal catalytic oxidation of C6H6. Moreover, porous Mn-Ni composite oxides with a Mn:Ni molar ratio of 4:1 (Mn4Ni1) displayed the best catalytic activity. Further investigation indicated that the excellent catalytic performance of Mn4Ni1 composite oxides could be ascribed mainly to the larger BET surface area and the richer content of surface-adsorbed oxygen species, as well as stronger oxygen mobility and better reducibility compared with other Mn-Ni catalysts. CONCLUSIONS: The Mn4Ni1 composite oxides showed a lowest T90 value of 172 °C (C6H6 concentration 200 ppm, WHSV 60 000 mL g−1 h−1) among all of the obtained Mn-Ni composite oxides. Moreover, it also exhibited favourable catalytic stability at 210 °C in the presence or absence of moisture.

AB - BACKGROUND: Benzene (C6H6) is a typical kind of volatile organic compound (VOC) which can exert great harm to both human health and the environment, and, thus, which needs to be eliminated before its emission. In this work, porous manganese–nickel (Mn-Ni) composite oxide catalysts were synthesized through the oxalate route and applied to thermal catalytic oxidation of C6H6. By means of activity tests and relative physico-chemical characterizations, the factors affecting the activity of those Mn-Ni composite oxides were explored. RESULTS: Nitrogen (N2)-adsorption/desorption and X-ray photoelectron spectroscopy (XPS) measurements indicated that the Brunauer–Elmett–Teller (BET) surface area and the content of surface-adsorbed oxygen species were increased due to the addition of Ni into Mn oxide (MnOx). Meanwhile, the oxygen mobility and reducibility also were improved in the Mn-Ni composite oxides. Accordingly, compared with MnOx, the Mn-Ni catalysts showed higher activity for thermal catalytic oxidation of C6H6. Moreover, porous Mn-Ni composite oxides with a Mn:Ni molar ratio of 4:1 (Mn4Ni1) displayed the best catalytic activity. Further investigation indicated that the excellent catalytic performance of Mn4Ni1 composite oxides could be ascribed mainly to the larger BET surface area and the richer content of surface-adsorbed oxygen species, as well as stronger oxygen mobility and better reducibility compared with other Mn-Ni catalysts. CONCLUSIONS: The Mn4Ni1 composite oxides showed a lowest T90 value of 172 °C (C6H6 concentration 200 ppm, WHSV 60 000 mL g−1 h−1) among all of the obtained Mn-Ni composite oxides. Moreover, it also exhibited favourable catalytic stability at 210 °C in the presence or absence of moisture.

UR - http://www.scopus.com/inward/record.url?scp=85076735672&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85076735672&partnerID=8YFLogxK

U2 - 10.1002/jctb.6280

DO - 10.1002/jctb.6280

M3 - Article

AN - SCOPUS:85076735672

JO - Journal of Chemical Technology and Biotechnology

JF - Journal of Chemical Technology and Biotechnology

SN - 0268-2575

ER -