Scalable Integration of Highly Uniform MnxCo3-xO4 Nanosheet Array onto Ceramic Monolithic Substrates for Low-Temperature Propane Oxidation

被引：35
|
作者：
Tang, Wenxiang [1 ,2 ]
Ren, Zheng [1 ,2 ]
Lu, Xingxu [1 ,2 ]
Wang, Sibo [1 ,2 ]
Guo, Yanbing [1 ,2 ]
Hoang, Son [1 ,2 ]
Du, Shoucheng [1 ,2 ]
Gao, Pu-Xian [1 ,2 ]
机构：
[1] Univ Connecticut, Dept Mat Sci & Engn, 97 North Eagleville Rd, Storrs, CT 06269 USA
[2] Univ Connecticut, Inst Mat Sci, 97 North Eagleville Rd, Storrs, CT 06269 USA
来源：
CHEMCATCHEM | 2017年 / 9卷 / 21期
基金：
美国国家科学基金会;
关键词：
cobalt; ceramics; manganese; nanostructures; redox chemistry; MOLECULAR-SIEVE OMS-2; CATALYTIC-OXIDATION; CO OXIDATION; OXIDE NANORODS; MANGANESE; VOCS; REDUCTION; NANOMATERIALS; MORPHOLOGY; EFFICIENCY;
D O I：
10.1002/cctc.201700795
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The redox reaction between KMnO4 and Co(NO3)(2) was designed and readily utilized for the scalable integration of spinel MnxCo3-xO4 nanosheet arrays in three-dimensional ceramic honeycombs by controlling the reaction temperature. The Co2+ can reduce MnO4- to form Mn-Co spinel oxide nanosheet arrays uniformly on the channel surface of cordierite honeycomb. The novel platinum group metal free oxide nanosheet array integrated ceramic honeycomb monolith shows good low-temperature catalytic activity for propane oxidation, with the 50% conversion temperature achieved at 310 degrees C, which is a much lower temperature than that over the wash-coated commercial Pt/Al2O3. These integrated Mn-Co composite oxide nanoarrays may hold great promise for the construction of advanced monolithic catalyst for high-performance and low-cost emission control.
引用
收藏
页码：4112 / 4119
页数：8
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