A novel chromic oxide catalyst for NO oxidation at ambient temperature

Shuang Liu; Mintao Zhang; Yanqiang Huang; Kunfeng Zhao; Zhenyuan Gao; Meijian Wu; Yamei Dong; Ting Wang; Jianlin Shi; Dannong He

doi:10.1039/c4ra02681k

A novel chromic oxide catalyst for NO oxidation at ambient temperature

Shuang Liu, Mintao Zhang, Yanqiang Huang, Kunfeng Zhao, Zhenyuan Gao, Meijian Wu, Yamei Dong, Ting Wang, Jianlin Shi, Dannong He

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

Chromic oxide catalysts were prepared by ammonia precipitation method and first used in NO oxidation to NO₂ at ambient temperature. After calcination at 300 °C, the catalyst exhibited higher catalytic activity with 100% conversion of NO and significantly longer lifetime than activated carbon or activated carbon fiber that has been reported so far. The effects of crystalline phases and surface hydroxyl groups on the activity as well as the durability of catalysts in NO oxidation were investigated by XRD, HRTEM, TG, XPS, Raman and DRIFT techniques. The results indicated that the amorphous structure and surface hydroxyl groups together contributed to the high catalytic activity and long-time stability of the catalysts. The promoting effect of surface hydroxyl groups for long-time stability was confirmed by the alkaline treatments of amorphous chromic oxide catalysts.

Original language	English
Pages (from-to)	29180-29186
Number of pages	7
Journal	RSC Advances
Volume	4
Issue number	55
DOIs	https://doi.org/10.1039/c4ra02681k
State	Published - 2014
Externally published	Yes

Access to Document

10.1039/c4ra02681k

Cite this

@article{0ed42811480e45e8b2029cf54c585969,

title = "A novel chromic oxide catalyst for NO oxidation at ambient temperature",

abstract = "Chromic oxide catalysts were prepared by ammonia precipitation method and first used in NO oxidation to NO2 at ambient temperature. After calcination at 300 °C, the catalyst exhibited higher catalytic activity with 100\% conversion of NO and significantly longer lifetime than activated carbon or activated carbon fiber that has been reported so far. The effects of crystalline phases and surface hydroxyl groups on the activity as well as the durability of catalysts in NO oxidation were investigated by XRD, HRTEM, TG, XPS, Raman and DRIFT techniques. The results indicated that the amorphous structure and surface hydroxyl groups together contributed to the high catalytic activity and long-time stability of the catalysts. The promoting effect of surface hydroxyl groups for long-time stability was confirmed by the alkaline treatments of amorphous chromic oxide catalysts.",

author = "Shuang Liu and Mintao Zhang and Yanqiang Huang and Kunfeng Zhao and Zhenyuan Gao and Meijian Wu and Yamei Dong and Ting Wang and Jianlin Shi and Dannong He",

year = "2014",

doi = "10.1039/c4ra02681k",

language = "英语",

volume = "4",

pages = "29180--29186",

journal = "RSC Advances",

issn = "2046-2069",

publisher = "Royal Society of Chemistry",

number = "55",

}

TY - JOUR

T1 - A novel chromic oxide catalyst for NO oxidation at ambient temperature

AU - Liu, Shuang

AU - Zhang, Mintao

AU - Huang, Yanqiang

AU - Zhao, Kunfeng

AU - Gao, Zhenyuan

AU - Wu, Meijian

AU - Dong, Yamei

AU - Wang, Ting

AU - Shi, Jianlin

AU - He, Dannong

PY - 2014

Y1 - 2014

N2 - Chromic oxide catalysts were prepared by ammonia precipitation method and first used in NO oxidation to NO2 at ambient temperature. After calcination at 300 °C, the catalyst exhibited higher catalytic activity with 100% conversion of NO and significantly longer lifetime than activated carbon or activated carbon fiber that has been reported so far. The effects of crystalline phases and surface hydroxyl groups on the activity as well as the durability of catalysts in NO oxidation were investigated by XRD, HRTEM, TG, XPS, Raman and DRIFT techniques. The results indicated that the amorphous structure and surface hydroxyl groups together contributed to the high catalytic activity and long-time stability of the catalysts. The promoting effect of surface hydroxyl groups for long-time stability was confirmed by the alkaline treatments of amorphous chromic oxide catalysts.

AB - Chromic oxide catalysts were prepared by ammonia precipitation method and first used in NO oxidation to NO2 at ambient temperature. After calcination at 300 °C, the catalyst exhibited higher catalytic activity with 100% conversion of NO and significantly longer lifetime than activated carbon or activated carbon fiber that has been reported so far. The effects of crystalline phases and surface hydroxyl groups on the activity as well as the durability of catalysts in NO oxidation were investigated by XRD, HRTEM, TG, XPS, Raman and DRIFT techniques. The results indicated that the amorphous structure and surface hydroxyl groups together contributed to the high catalytic activity and long-time stability of the catalysts. The promoting effect of surface hydroxyl groups for long-time stability was confirmed by the alkaline treatments of amorphous chromic oxide catalysts.

UR - https://www.scopus.com/pages/publications/84904126210

U2 - 10.1039/c4ra02681k

DO - 10.1039/c4ra02681k

M3 - 文章

AN - SCOPUS:84904126210

SN - 2046-2069

VL - 4

SP - 29180

EP - 29186

JO - RSC Advances

JF - RSC Advances

IS - 55

ER -

A novel chromic oxide catalyst for NO oxidation at ambient temperature

Abstract

Access to Document

Other files and links

Fingerprint

Cite this