Nitrous oxide decomposition over La0.3Sr0.7Co0.7fe0.3O3-δ catalyst

被引：4
|
作者：
Hartley, U. W. [1 ]
Tongnan, V [1 ]
Laosiripojana, N. [2 ]
Kim-Lohsoontorn, P. [3 ]
Li, K. [4 ]
机构：
[1] King Mongkuts Univ Technol North Bangkok, Sirindhorn Int Thai German Grad Sch Engn TGGS, Chem & Proc Engn, Bangkok 10800, Thailand
[2] King Mongkuts Univ Technol Thonburi, Joint Grad Sch Energy & Environm, Bangkok 10140, Thailand
[3] Chulalongkorn Univ, Dept Chem Engn, Bangkok 13330, Thailand
[4] Imperial Coll London, Dept Chem Engn, London SW7 2AZ, England
来源：
REACTION KINETICS MECHANISMS AND CATALYSIS | 2018年 / 125卷 / 01期
基金：
英国工程与自然科学研究理事会;
关键词：
Nitrous oxide decomposition; LSCF; Sonochemical synthesis; Eley-Rideal; Nanoparticles; N2O DECOMPOSITION; TEMPERATURE; PERFORMANCE; KINETICS;
D O I：
10.1007/s11144-018-1398-9
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：
Nano-sized La(0.3)Sr(0.7)Co(0.7)fe(0.3)O(3-delta) (LSFC3773) was prepared as a catalyst for nitrous oxide (N2O) decomposition by a sonochemical method. The catalyst provided a complete conversion of N2O at 450 degrees C, showing the best performance among most recent industrial catalysts, and offered 99.7-100% conversion at higher temperatures, e.g., 540-600 degrees C. A suitable operating temperature range for the reaction to avoid NOx formation is from 400 to 600 degrees C. The activation energy and the pre-exponential factor were 42.96 kJ/mol and 161,135.35 mol/g(cat) h bar. Oxygen inhibition was observed and was more obvious as the sample approached full surface coverage (theta = 1) at 375 degrees C using a 100% N2O feed. The reaction occurred via the Eley-Rideal mechanism. Two possible model mechanisms were suggested according to the experimental phenomenon and the rate coefficient order of each elementary steps.
引用
收藏
页码：85 / 97
页数：13
相关论文
共 50 条
  • [1] Nitrous oxide decomposition over La0.3Sr0.7Co0.7Fe0.3O3−δ catalyst
    U. W. Hartley
    V. Tongnan
    N. Laosiripojana
    P. Kim-Lohsoontorn
    K. Li
    [J]. Reaction Kinetics, Mechanisms and Catalysis, 2018, 125 : 85 - 97
  • [2] Synthesis and characterization of La0.7Sr0.3Fe0.7Co0.3O3±δ by Sonochemistry
    Elena, de La Huerta-Hernandez G.
    Ivan, Castro Cisneros
    Jose, A. Chavez Carvayar
    Isaias, Hernandez Perez
    [J]. MRS ADVANCES, 2020, 5 (61) : 3163 - 3170
  • [3] Synthesis and characterization of La0.7Sr0.3Fe0.7Co0.3O3±δ by Sonochemistry
    De La Huerta Hernández G. Elena
    Castro Cisneros Iván
    Carvayar José A. Chávez
    Hernández Pérez Isaías
    [J]. MRS Advances, 2020, 5 : 3163 - 3170
  • [4] Characterization and stability of La0.7Sr0.3Co0.3Fe0.7O3 perovskite-type oxide
    Li Yan
    Luo Zhongyang
    Yu Chunjiang
    Wei Xinli
    Cen Kefa
    [J]. CHALLENGES OF POWER ENGINEERING AND ENVIRONMENT, VOLS 1 AND 2, 2007, : 963 - +
  • [5] Oxygen Permeation Properties of La0.7Sr0.3Co0.3Fe0.7O3-delta Membrane
    Son, Sou Hwan
    Kim, Jong-Pyo
    Park, Jung Hoon
    Lee, Yongtaek
    [J]. KOREAN CHEMICAL ENGINEERING RESEARCH, 2009, 47 (03): : 310 - 315
  • [6] Mechanisms of synthesis gas production via thermochemical cycles over La0.3Sr0.7Co0.7Fe0.3O3
    Khamhangdatepon, Tatiya
    Tongnan, Vut
    Hartley, Matthew
    Sornchamni, Thana
    Siri-Nguan, Nuchanart
    Laosiripojana, Navadol
    Li, Kang
    Hartley, Unalome Wetwatana
    [J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2021, 46 (48) : 24666 - 24675
  • [7] Thermodynamic and mechanism study of syngas production via integration of nitrous oxide decomposition and methane partial oxidation in the presence of 10%NiO–La0.3Sr0.7Co0.7Fe0.3O3−δ
    C. Khajonvittayakul
    V. Tongnan
    T. Kangsadan
    N. Laosiripojana
    S. Jindasuwan
    U. W. Hartley
    [J]. Reaction Kinetics, Mechanisms and Catalysis, 2019, 127 : 839 - 855
  • [8] Thermodynamic and mechanism study of syngas production via integration of nitrous oxide decomposition and methane partial oxidation in the presence of 10%NiO-La0.3Sr0.7Co0.7Fe0.3O3-δ
    Khajonvittayakul, C.
    Tongnan, V.
    Kangsadan, T.
    Laosiripojana, N.
    Jindasuwan, S.
    Hartley, U. W.
    [J]. REACTION KINETICS MECHANISMS AND CATALYSIS, 2019, 127 (02) : 839 - 855
  • [9] La0.7Sr0.3Fe0.7Ga0.3O3-δ as electrode material for a symmetrical solid oxide fuel cell
    Yang, Zhibin
    Chen, Yu
    Jin, Chao
    Xiao, Guoliang
    Han, Minfang
    Chen, Fanglin
    [J]. RSC ADVANCES, 2015, 5 (04): : 2702 - 2705
  • [10] Electrochemistry of La0.3Sr0.7Fe0.7Cr0.3O3-δ as an oxygen and fuel electrode for RSOFCs
    Molero-Sanchez, Beatriz
    Addo, Paul
    Buyukaksoy, Aligul
    Paulson, Scott
    Birss, Viola
    [J]. FARADAY DISCUSSIONS, 2015, 182 : 159 - 175
12345