Boosting
Toluene Combustion by Engineering Co–O
Strength in Cobalt Oxide Catalysts
Posted on 2020-07-27 - 13:36
Exploring
active and low-cost transition metal oxides (TMOs) based
catalysts for volatile organic compounds (VOCs) abatement is vital
for air pollution control technologies. Since 18 oxygen atoms are
required for the complete mineralization of a toluene molecule, the
participation of a large amount of active oxygen is a key requirement
for the catalytic oxidation of toluene. Here, toluene degradation
was improved by weakening the Co–O bond strength on the surface
of cobalt oxide, so as to increase the amount of active oxygen species,
while maintaining the high stability of the catalyst for toluene combustion.
The bond strength of Co–O and the amount of surface active
O2 was regulated by tuning the pyrolysis temperature. The
catalyst’s redox ability and surface oxygen species activity
are improved due to the weakening of the Co–O bond strength.
It has been demonstrated that active oxygen plays a crucial role in
boosting toluene combustion by engineering Co–O strength in
cobalt oxide catalysts. This work provides a new understanding of
the exploration and development of high-performance TMO catalysts
for VOCs abatement.
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Shen, Yongjie; Deng, Jiang; Impeng, Sarawoot; Li, Shuangxi; Yan, Tingting; Zhang, Jianping; et al. (2020). Boosting
Toluene Combustion by Engineering Co–O
Strength in Cobalt Oxide Catalysts. ACS Publications. Collection. https://doi.org/10.1021/acs.est.0c02680
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AUTHORS (8)
YS
Yongjie Shen
JD
Jiang Deng
SI
Sarawoot Impeng
SL
Shuangxi Li
TY
Tingting Yan
JZ
Jianping Zhang
LS
Liyi Shi
DZ
Dengsong Zhang