Formation of Rhodium Metal Ensembles that Facilitate Nitric Oxide Reduction over Rhodium/Ceria in a Stoichiometric Nitric Oxide-Carbon Monoxide-Propene-Oxygen Reaction

被引：10
|
作者：
Ohyama, Junya [1 ,2 ]
Nishiyama, Takumi [1 ]
Satsuma, Atsushi [1 ,2 ]
机构：
[1] Nagoya Univ, Grad Sch Engn, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648603, Japan
[2] Kyoto Univ, ESICB, Kyoto 6158520, Japan
来源：
CHEMCATCHEM | 2018年 / 10卷 / 07期
关键词：
heterogeneous catalysis; nanoparticles; rhodium; supported catalysts; GALVANIC DEPOSITION METHOD; NO-CO REACTION; SUPPORTED RHODIUM; RH CATALYSTS; METHANE COMBUSTION; ADSORBED NO; NANOPARTICLES; OXIDATION; SIZE; RH(111);
D O I：
10.1002/cctc.201701842
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：
A series of ceria-supported Rh nanoparticles (NPs) that have various particle sizes of 2-7nm was prepared to investigate the size effect of Rh NPs on NO reduction in NO-CO-C3H6-O-2 under stoichiometric conditions. The turnover frequency (TOF) for NO reduction on Rh NPs increased drastically according to their particle size. The strong size dependence of the TOF was attributed to the oxidation states of Rh NPs but not to particle geometries, which include fractions of surface local sites (e.g., corner, edge, plane) and the surface crystal structures (e.g., Rh(111), (100)). The variation of the TOF with the Rh metal fraction suggested that Rh metal ensembles are highly active species for NO reduction.
引用
收藏
页码：1651 / 1656
页数：6
相关论文
共 8 条
  • [1] Selective catalytic reduction of nitric oxide with carbon monoxide over alumina-pellet-supported catalysts in the presence of excess oxygen
    Liu, Kaijie
    Yu, Qingbo
    Qin, Qin
    Wang, Chunpeng
    ENVIRONMENTAL TECHNOLOGY, 2018, 39 (15) : 1878 - 1885
  • [2] Catalytic reduction of nitric oxide by carbon monoxide over coal gangue hollow ball
    Li, Sen
    Yu, Juanli
    Wei, Xiaolin
    Guo, Xiaofeng
    Chen, Yang
    FUEL PROCESSING TECHNOLOGY, 2014, 125 : 163 - 169
  • [3] Nitric oxide interaction with Rh metal: kinetics of elemental steps and reaction with carbon monoxide
    Kruse, N
    JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2000, 163 (1-2) : 79 - 89
  • [4] Amperometric Nitric Oxide Sensors with Enhanced Selectivity Over Carbon Monoxide via Platinum Oxide Formation Under Alkaline Conditions
    Jensen, Gary C.
    Zheng, Zheng
    Meyerhoff, Mark E.
    ANALYTICAL CHEMISTRY, 2013, 85 (21) : 10057 - 10061
  • [5] A general model for both three-way and deNOx catalysis:: dissociative or associative nitric oxide adsorption, and its assisted decomposition in the presence of a reductant Part I.: Nitric oxide decomposition assisted by CO over reduced or oxidized rhodium species supported on ceria
    Djéga-Mariadassou, G
    Fajardie, F
    Tempère, JF
    Manoli, JM
    Touret, O
    Blanchard, G
    JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2000, 161 (1-2) : 179 - 189
  • [6] Noble Metal Nanoparticles Decorated Boron Nitride Nanotubes for Efficient and Selective Low-Temperature Catalytic Reduction of Nitric Oxide with Carbon Monoxide
    Choi, Ki-In
    Yadav, Dolly
    Jung, Junghwan
    Park, Eunkwang
    Lee, Kyung-Min
    Kim, Taejin
    Kim, Jaewoo
    ACS APPLIED MATERIALS & INTERFACES, 2023, 15 (08) : 10670 - 10678
  • [7] Highly active copper-based Ce@TiO2 core-shell catalysts for the selective reduction of nitric oxide with carbon monoxide in the presence of oxygen
    Lopez, Naima
    Aguila, Gonzalo
    Araya, Paulo
    Guerrero, Sichem
    CATALYSIS COMMUNICATIONS, 2018, 104 : 17 - 21
  • [8] A Study of Different Doped Metal Cations on the Physicochemical Properties and Catalytic Activities of Ce20M1Ox (M=Zr, Cr, Mn, Fe, Co, Sn) Composite Oxides for Nitric Oxide Reduction by Carbon Monoxide
    Deng, Changshun
    Li, Min
    Qian, Junning
    Hu, Qun
    Huang, Meina
    Lin, Qingjin
    Ruan, Yongshun
    Dong, Lihui
    Li, Bin
    Fan, Minguang
    CHEMISTRY-AN ASIAN JOURNAL, 2016, 11 (15) : 2144 - 2156
1