Citation: WANG Rui, LAN Li, GONG Mao-Chu, CHEN Yao-Qiang. Catalytic Combustion of Gasoline Particulate Soot over CeO₂-ZrO₂ Catalysts[J]. Acta Physico-Chimica Sinica, ;2016, 32(7): 1747-1757. doi: 10.3866/PKU.WHXB201605103 shu

Catalytic Combustion of Gasoline Particulate Soot over CeO₂-ZrO₂ Catalysts

WANG Rui ^1,2, ,
LAN Li ^2,3 ,
GONG Mao-Chu ^2,3 ,
CHEN Yao-Qiang ^2,3,4

1.
College of Architecture and Environment, Sichuan University, Chengdu 610065, P. R. China;
2.
Key Laboratory of Green Chemistry & Technology of the Ministry of Education, Sichuan University, Chengdu 610064, P. R. China;
3.
College of Chemistry, Sichuan University, Chengdu 610064, P. R. China;
4.
Center of Engineering of Environmental Catalytic Material of Sichuan Province, Chengdu 610064, P. R. China

Received Date: 25 February 2016
Revised Date: 10 May 2016

Fund Project: The project was supported by the National High-Tech Research and Development Program of China (863) (2015AA034603).

A series of CeO₂-ZrO₂ mixed oxide catalysts having different mass ratios (wCeO₂-(1-w)ZrO₂) were prepared using a co-precipitation method and subsequently applied to the combustion of soot in gasoline engine exhaust. The soot combustion activities of the catalysts were assessed via the temperature-programmed oxidation of powder mixtures, applying steps of 10 ℃·min^-1 from room temperature to 850 ℃. These catalysts were also characterized by X-ray diffraction (XRD), Raman spectroscopy, N₂ adsorption-desorption, scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), oxygen storage capacity (OSC), and H₂ temperature-programmed reduction (H₂-TPR). After being calcined at 800 ℃, 70%CeO₂-30%ZrO₂ exhibited the highest soot combustion activity, such that the maximum product concentration temperature (T_m) was decreased from 719 to 625 ℃ when employing this catalyst. The 70%CeO₂-30%ZrO₂ also showed excellent thermal stability, indicating that this could be an appropriate catalyst for soot combustion in gasoline direct injection engines. The differences in the soot combustion activities of the catalysts were closely related to their structures, surface compositions, and redox properties. XRD and Raman data demonstrated that the ceriumrich samples presented a typical cubic phase, while a tetragonal phase was observed in the case of the zirconium-rich samples. XPS showed that the molar fraction of Ce³⁺ in total Ce and the molar fraction of surfaceadsorbed oxygen to lattice oxygen on the surfaces of various samples differed, and these variations induced their different catalytic activities. The 70%CeO₂-30%ZrO₂ sample showed the largest OSC value and the most pronounced reduction properties. This same material was also found to have excellent thermal stability with regard to structure, surface composition, and redox properties, as reflected in the minimal degradation of the soot combustion activity of this catalyst with increasing calcination temperature.
- Cerium-zirconium mixed oxide,
- Soot combustion,
- Gasoline direct injection,
- Gasoline particulate filter,
- Oxygen concentration
1. [1]
2. [2]
3. [3]
4. [4]
5. [5]
6. [6]
7. [7]
8. [8]
9. [9]
10. [10]
11. [11]
12. [12]
13. [13]
14. [14]
15. [15]
16. [16]
17. [17]
18. [18]
19. [19]
20. [20]
21. [21]
22. [22]
23. [23]
24. [24]
25. [25]
26. [26]
27. [27]
28. [28]
29. [29]
30. [30]
31. [31]
32. [32]
33. [33]
34. [34]
35. [35]
36. [36]
37. [37]
38. [38]
39. [39]
40. [40]
41. [41]
42. [42]
43. [43]
44. [44]
45. [45]
46. [46]
47. [47]
48. [48]
49. [49]
1. [1]
  Zongfei YANG , Xiaosen ZHAO , Jing LI , Wenchang ZHUANG . Research advances in heteropolyoxoniobates. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 465-480. doi: 10.11862/CJIC.20230306
2. [2]
  Cunling Ye , Xitong Zhao , Hongfang Wang , Zhike Wang . A Formula for the Calculation of Complex Concentrations Arising from Side Reactions and Its Applications. University Chemistry, 2024, 39(4): 382-386. doi: 10.3866/PKU.DXHX202310043
3. [3]
  Jinfeng Chu , Yicheng Wang , Ji Qi , Yulin Liu , Yan Li , Lan Jin , Lei He , Yufei Song . Comprehensive Chemical Experiment Design: Convenient Preparation and Characterization of an Oxygen-Bridged Trinuclear Iron(III) Complex. University Chemistry, 2024, 39(7): 299-306. doi: 10.3866/PKU.DXHX202310105
4. [4]
  Yan LIU , Jiaxin GUO , Song YANG , Shixian XU , Yanyan YANG , Zhongliang YU , Xiaogang HAO . Exclusionary recovery of phosphate anions with low concentration from wastewater using a CoNi-layered double hydroxide/graphene electronically controlled separation film. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1775-1783. doi: 10.11862/CJIC.20240043
5. [5]
  Xiaofeng Zhu , Bingbing Xiao , Jiaxin Su , Shuai Wang , Qingran Zhang , Jun Wang . Transition Metal Oxides/Chalcogenides for Electrochemical Oxygen Reduction into Hydrogen Peroxides. Acta Physico-Chimica Sinica, 2024, 40(12): 2407005-. doi: 10.3866/PKU.WHXB202407005
6. [6]
  Endong YANG , Haoze TIAN , Ke ZHANG , Yongbing LOU . Efficient oxygen evolution reaction of CuCo₂O₄/NiFe-layered bimetallic hydroxide core-shell nanoflower sphere arrays. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 930-940. doi: 10.11862/CJIC.20230369
7. [7]
  Yueguang Chen , Wenqiang Sun . “Carbon” Adventures. University Chemistry, 2024, 39(9): 248-253. doi: 10.3866/PKU.DXHX202308074
8. [8]
  Ruilin Han , Xiaoqi Yan . Comparison of Multiple Function Methods for Fitting Surface Tension and Concentration Curves. University Chemistry, 2024, 39(7): 381-385. doi: 10.3866/PKU.DXHX202311023
9. [9]
  Houzhen Xiao , Mingyu Wang , Yong Liu , Bangsheng Lao , Lingbin Lu , Minghuai Yu . Course Ideological and Political Design of Combustion Heat Measurement Experiment. University Chemistry, 2024, 39(2): 7-13. doi: 10.3866/PKU.DXHX202310011
10. [10]
  Zhihuan XU , Qing KANG , Yuzhen LONG , Qian YUAN , Cidong LIU , Xin LI , Genghuai TANG , Yuqing LIAO . Effect of graphene oxide concentration on the electrochemical properties of reduced graphene oxide/ZnS. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1329-1336. doi: 10.11862/CJIC.20230447
11. [11]
  Yuanpei ZHANG , Jiahong WANG , Jinming HUANG , Zhi HU . Preparation of magnetic mesoporous carbon loaded nano zero-valent iron for removal of Cr(Ⅲ) organic complexes from high-salt wastewater. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1731-1742. doi: 10.11862/CJIC.20240077
12. [12]
  Lei Shu , Zimin Duan , Yushen Kang , Zijian Zhao , Hong Wang , Lihua Zhu , Hui Xiong , Nan Wang . An Exploration of the CO₂-Involved Carbon Cycle World. University Chemistry, 2024, 39(5): 144-153. doi: 10.3866/PKU.DXHX202309084
13. [13]
  Meijin Li , Xirong Fu , Xue Zheng , Yuhan Liu , Bao Li . The Marvel of NAD⁺: Nicotinamide Adenine Dinucleotide. University Chemistry, 2024, 39(9): 35-39. doi: 10.12461/PKU.DXHX202401027
14. [14]
  Lu XU , Chengyu ZHANG , Wenjuan JI , Haiying YANG , Yunlong FU . Zinc metal-organic framework with high-density free carboxyl oxygen functionalized pore walls for targeted electrochemical sensing of paracetamol. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 907-918. doi: 10.11862/CJIC.20230431
15. [15]
  Hailang JIA , Hongcheng LI , Pengcheng JI , Yang TENG , Mingyun GUAN . Preparation and performance of N-doped carbon nanotubes composite Co₃O₄ as oxygen reduction reaction electrocatalysts. Chinese Journal of Inorganic Chemistry, 2024, 40(4): 693-700. doi: 10.11862/CJIC.20230402
16. [16]
  Shuyong Zhang , Yaxian Zhu , Wenqing Zhang , Yuzhi Wang , Jing Lu . Ideological and Political Design of Combustion Heat Measurement Experiment: Determination of Heat Value of Agricultural and Forestry Wastes. University Chemistry, 2024, 39(2): 1-6. doi: 10.3866/PKU.DXHX202303026
17. [17]
  Mengyao Shi , Kangle Su , Qingming Lu , Bin Zhang , Xiaowen Xu . Determination of Potassium Content in Tobacco Stem Ash by Flame Atomic Absorption Spectroscopy. University Chemistry, 2024, 39(10): 255-260. doi: 10.12461/PKU.DXHX202404105
18. [18]
  Lei Shu , Zhengqing Hao , Kai Yan , Hong Wang , Lihua Zhu , Fang Chen , Nan Wang . Development of a Double-Carbon Related Experiment: Preparation, Characterization and Carbon-Capture Ability of Eggshell-Derived CaO. University Chemistry, 2024, 39(4): 149-156. doi: 10.3866/PKU.DXHX202310134
19. [19]
  Kai CHEN , Fengshun WU , Shun XIAO , Jinbao ZHANG , Lihua ZHU . PtRu/nitrogen-doped carbon for electrocatalytic methanol oxidation and hydrogen evolution by water electrolysis. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1357-1367. doi: 10.11862/CJIC.20230350
20. [20]
  Siyi ZHONG , Xiaowen LIN , Jiaxin LIU , Ruyi WANG , Tao LIANG , Zhengfeng DENG , Ao ZHONG , Cuiping HAN . Targeting imaging and detection of ovarian cancer cells based on fluorescent magnetic carbon dots. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1483-1490. doi: 10.11862/CJIC.20240093

Get Citation

PDF

XML

Metrics

PDF Downloads(2)
Abstract views(731)
HTML views(106)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Catalytic Combustion of Gasoline Particulate Soot over CeO2-ZrO2 Catalysts

Metrics

通讯作者: 陈斌, bchen63@163.com

Catalytic Combustion of Gasoline Particulate Soot over CeO₂-ZrO₂ Catalysts