Low-temperature CO oxidation over integrated penthorum chinense-like MnCo2O4 arrays anchored on three-dimensional Ni foam with enhanced moisture resistance

被引:69
作者
Mo, Shengpeng [1 ,2 ]
Li, Shuangde [2 ,3 ]
Xiao, Hailin [1 ]
He, Hui [1 ]
Xue, Yudong [2 ]
Zhang, Mingyuan [1 ]
Ren, Quanming [1 ]
Chen, Bingxu [1 ]
Chen, Yunfa [2 ,3 ]
Ye, Daiqi [1 ,4 ,5 ]
机构
[1] South China Univ Technol, Sch Environm & Energy, Guangzhou 510006, Guangdong, Peoples R China
[2] Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
[3] Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Urban Atmospher Environm, Xiamen 361021, Peoples R China
[4] Guangdong Prov Key Lab Atmospher Environm & Pollu, Guangzhou 510006, Guangdong, Peoples R China
[5] South China Univ Technol, Guangzhou Higher Educ Mega Ctr, Guangdong Prov Engn & Technol Res Ctr Environm Ri, Guangzhou 510006, Guangdong, Peoples R China
基金
中国国家自然科学基金;
关键词
OPERANDO RAMAN-SPECTROSCOPY; METAL-SUPPORT INTERACTIONS; LAYERED DOUBLE HYDROXIDES; DE-NOX CATALYSTS; CO3O4; NANORODS; FORMALDEHYDE OXIDATION; MONOLITHIC CATALYSTS; BENZENE OXIDATION; OXIDE CATALYSTS; PERFORMANCE;
D O I
10.1039/c7cy02474f
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
Advanced integrated nanoarray (NA) catalysts have been designed by growing metal-doped Co3O4 arrays on nickel foam with robust adhesion. Ternary MCo2O4 NA catalysts were prepared by doping urchin-like Co3O4 with different transition metals (Cu2+, Mn2+, Fe2+, Ni2+, Zn2+, Fe3+ and Al3+). These catalysts exhibited novel morphologies and can be directly applied as monolithic materials for CO oxidation. Among the MCo2O4 NA catalysts, CuCo2O4 nanoneedles manifested the highest catalytic activity in dry air, achieving an efficient 100% CO oxidation conversion of 20000 h(-1) at 146 degrees C, due to its reducibility at lower temperature, lattice distortion of the spinel structure, and abundant surface-adsorbed oxygen (O-ads). The doped catalytic systems were further optimized by controlling the volume ratio of reactive components in the mixed solvent, the Cu or Mn contents to determine excellent catalysts for direct application to CO oxidation at 1.0 vol% moisture. Penthorum chinense-like MnCo2O4 NAs showed optimal catalytic performance at 1 vol% moisture (T-100 = 175 degrees C), with activity higher than that of the CuCo2O4 NA catalyst, indicating that the synergistic effect between MnOx and Co3O4 improved the moisture resistance and stability. It was concluded that the moisture resistance provided by introducing active sites on Co-based catalysts decreased as follows: Mn sites > Co sites > Cu sites > Ni sites. MCo2O4 NAs, with predominantly exposed {110} surfaces, showed higher catalytic activity than catalysts with exposed {111} surfaces. This study suggests that the as-prepared MnCo2O4 NAs anchored on 3D Ni foam with remarkable moisture resistance have potential applications in CO oxidation.
引用
收藏
页码:1663 / 1676
页数:14
相关论文
共 61 条
[1]   A general strategy for the in situ decoration of porous Mn-Co bi-metal oxides on metal mesh/foam for high performance de-NOx monolith catalysts [J].
Cai, Sixiang ;
Liu, Jie ;
Zha, Kaiwen ;
Li, Hongrui ;
Shi, Liyi ;
Zhang, Dengsong .
NANOSCALE, 2017, 9 (17) :5648-5657
[2]   Porous Ni-Mn oxide nanosheets in situ formed on nickel foam as 3D hierarchical monolith de-NOx catalysts [J].
Cai, Sixiang ;
Zhang, Dengsong ;
Shi, Liyi ;
Xu, Jing ;
Zhang, Lei ;
Huang, Lei ;
Li, Hongrui ;
Zhang, Jianping .
NANOSCALE, 2014, 6 (13) :7346-7353
[3]   Diesel soot elimination over potassium-promoted Co3O4 nanowires monolithic catalysts under gravitation contact mode [J].
Cao, Chunmei ;
Xing, Lingli ;
Yang, Yuexi ;
Tian, Ye ;
Ding, Tong ;
Zhang, Jing ;
Hu, Tiandou ;
Zheng, Lirong ;
Li, Xingang .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2017, 218 :32-45
[4]   Catalytic performance of Au/ZnO nanocatalysts for CO oxidation [J].
Carabineiro, S. A. C. ;
Machado, B. F. ;
Bacsa, R. R. ;
Serp, P. ;
Drazic, G. ;
Faria, J. L. ;
Figueiredo, J. L. .
JOURNAL OF CATALYSIS, 2010, 273 (02) :191-198
[5]   Copper as promoter of the NiO-CeO2 catalyst in the preferential CO oxidation [J].
Chagas, Carlos Alberto ;
de Souza, Eugenio F. ;
Manfro, Robinson L. ;
Landi, Sandra M. ;
Souza, Mariana M. V. M. ;
Schmal, Martin .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2016, 182 :257-265
[6]   Solubility product difference-guided synthesis of Co3O4-CeO2 core-shell catalysts for CO oxidation [J].
Chen, Guozhu ;
Xu, Qihui ;
Wang, Yong ;
Song, Guolong ;
Li, Cuncheng ;
Zhao, Wei ;
Fan, Weiliu .
CATALYSIS SCIENCE & TECHNOLOGY, 2016, 6 (19) :7273-7279
[7]   The promotional effect of gold in catalysis by palladium-gold [J].
Chen, MS ;
Kumar, D ;
Yi, CW ;
Goodman, DW .
SCIENCE, 2005, 310 (5746) :291-293
[8]   Manganese Oxide Nanoarray-Based Monolithic Catalysts: Tunable Morphology and High Efficiency for CO Oxidation [J].
Chen, Sheng-Yu ;
Song, Wenqiao ;
Lin, Hui-Jan ;
Wang, Sibo ;
Biswas, Sourav ;
Mollahosseini, Mehdi ;
Kuo, Chung-Hao ;
Gao, Pu-Xian ;
Suib, Steven L. .
ACS APPLIED MATERIALS & INTERFACES, 2016, 8 (12) :7834-7842
[9]   O22-/O- functionalized oxygen-deficient Co3O4 nanorods as high performance supercapacitor electrodes and electrocatalysts towards water splitting [J].
Cheng, Guanhua ;
Kou, Tianyi ;
Zhang, Jie ;
Si, Conghui ;
Gao, Hui ;
Zhang, Zhonghua .
NANO ENERGY, 2017, 38 :155-166
[10]   Vital role of moisture in the catalytic activity of supported gold nanoparticles [J].
Daté, M ;
Okumura, M ;
Tsubota, S ;
Haruta, M .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (16) :2129-2132