Citation: Lei Zhang, Jingfang Sun, Yan Xiong, Xiaoqing Zeng, Changjin Tang, Lin Dong. Catalytic performance of highly dispersed WO₃ loaded on CeO₂ in the selective catalytic reduction of NO by NH₃[J]. Chinese Journal of Catalysis, ;2017, 38(10): 1749-1758. doi: 10.1016/S1872-2067(17)62887-0 shu

Catalytic performance of highly dispersed WO₃ loaded on CeO₂ in the selective catalytic reduction of NO by NH₃

a. School of Environmental and Chemical Engineering, Chongqing Three Gorges University, Chongqing 404000, China;
b. Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu, China;
c. College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, Henan, China

Received Date: 31 May 2017
Revised Date: 6 July 2017

Fund Project: This work was supported by the National Natural Foundation of China (21607019, 21503115), the Open Project Program of Jiangsu Key Laboratory of Vehicle Emissions Control (OVEC013), and the Talent Introduction Project of Chongqing Three Gorges University.

The influence of tungsten trioxide (WO₃) loading on the selective catalytic reduction (SCR) of nitric oxide (NO) by ammonia (NH₃) over WO₃/cerium dioxide (CeO₂) was investigated. The NO conversion first rose and then declined with increasing WO₃ loading. It was found that the crystalline WO₃ in the 1.6WO₃/CeO₂ sample could be removed in 25 wt% ammonium hydroxide at 70 ℃, which improved the catalytic activity of the sample. The obtained samples were characterized by X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, hydrogen (H₂) temperature programmed reduction, NH₃ temperature programmed desorption, and in situ diffuse reflectance infrared Fourier transform spectroscopy. The results revealed that the dispersed WO₃ promoted the catalytic activity of WO₃/CeO₂ while the crystalline WO₃ inhibited catalytic activity. The oxygen activation of CeO₂ was inhibited by the coverage of WO₃, which weakened NO oxidation and adsorption of nitrate species over WO₃/CeO₂. In addition, the NH₃ adsorption performance on CeO₂ was improved by modification with WO₃. NH₃ was the most stable adsorbed species under NH₃ SCR reaction conditions. In situ DRIFT spectra suggested that the NH₃ SCR reaction proceeded via the Eley-Rideal mechanism over WO₃/CeO₂. Thus, when the loading of WO₃ was close to the dispersion capacity, the effects of NH₃ adsorption and activation were maximized to promote the reaction via the Eley-Rideal route.
- NH₃ selective catalytic reduction,
- WO₃/CeO₂ catalyst,
- WO₃ state,
- Dispersion capacity,
- Diffuse reflectance infrared Fourier transform spectroscopy
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]
1. [1]
  Supin Zhao , Jing Xie . Understanding the Vibrational Stark Effect of Water Molecules Using Quantum Chemistry Calculations. University Chemistry, 2025, 40(3): 178-185. doi: 10.12461/PKU.DXHX202406024
2. [2]
  Wenjie Jiang , Zhixiang Zhai , Xiaoyan Zhuo , Jia Wu , Boyao Feng , Tianqi Yu , Huan Wen , Shibin Yin . Revealing the reactant adsorption role of high-valence WO3 for boosting urea-assisted water splitting. Chinese Journal of Structural Chemistry, 2025, 44(3): 100519-100519. doi: 10.1016/j.cjsc.2025.100519
3. [3]
  Fei Yin , Erli Yang , Xue Ge , Qian Sun , Fan Mo , Guoqiu Wu , Yanfei Shen . Coupling WO₃₋_x dots-encapsulated metal-organic frameworks and template-free branched polymerization for dual signal-amplified electrochemiluminescence biosensing. Chinese Chemical Letters, 2024, 35(4): 108753-. doi: 10.1016/j.cclet.2023.108753
4. [4]
  Wenlong LI , Xinyu JIA , Jie LING , Mengdan MA , Anning ZHOU . Photothermal catalytic CO₂ hydrogenation over a Mg-doped In₂O_3-x catalyst. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 919-929. doi: 10.11862/CJIC.20230421
5. [5]
  Peng YUE , Liyao SHI , Jinglei CUI , Huirong ZHANG , Yanxia GUO . Effects of Ce and Mn promoters on the selective oxidation of ammonia over V₂O₅/TiO₂ catalyst. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 293-307. doi: 10.11862/CJIC.20240210
6. [6]
  Jiahui YU , Jixian DONG , Yutong ZHAO , Fuping ZHAO , Bo GE , Xipeng PU , Dafeng ZHANG . The morphology control and full-spectrum photodegradation tetracycline performance of microwave-hydrothermal synthesized BiVO₄:Yb³⁺,Er³⁺ photocatalyst. Journal of Fuel Chemistry and Technology, 2025, 53(3): 348-359. doi: 10.1016/S1872-5813(24)60514-1
7. [7]
  Peng Li , Yuanying Cui , Zhongliao Wang , Graham Dawson , Chunfeng Shao , Kai Dai . Efficient interfacial charge transfer of CeO₂/Bi₁₉Br₃S₂₇ S-scheme heterojunction for boosted photocatalytic CO₂ reduction. Acta Physico-Chimica Sinica, 2025, 41(6): 100065-. doi: 10.1016/j.actphy.2025.100065
8. [8]
  Yang Wang , Yunpeng Fu , Xiaoji Liu , Guotao Zhang , Guobin Li , Wanqiang Liu , Jinglun Wang . Structural Analysis of Nitrile Solutions Based on Infrared Spectroscopy Probes. University Chemistry, 2025, 40(4): 367-374. doi: 10.12461/PKU.DXHX202406113
9. [9]
  Shihui Shi , Haoyu Li , Shaojie Han , Yifan Yao , Siqi Liu . Regioselectively Synthesis of Halogenated Arenes via Self-Assembly and Synergistic Catalysis Strategy. University Chemistry, 2024, 39(5): 336-344. doi: 10.3866/PKU.DXHX202312002
10. [10]
  Yanan Liu , Yufei He , Dianqing Li . Preparation of Highly Dispersed LDHs-based Catalysts and Testing of Nitro Compound Reduction Performance: A Comprehensive Chemical Experiment for Research Transformation. University Chemistry, 2024, 39(8): 306-313. doi: 10.3866/PKU.DXHX202401081
11. [11]
  Yu Wang , Haiyang Shi , Zihan Chen , Feng Chen , Ping Wang , Xuefei Wang . 具有富电子Pt^δ^-壳层的空心AgPt@Pt核壳催化剂：提升光催化H₂O₂生成选择性与活性. Acta Physico-Chimica Sinica, 2025, 41(7): 100081-. doi: 10.1016/j.actphy.2025.100081
12. [12]
  .
  CCS Chemistry | 超分子活化底物为自由基促进高效选择性光催化氧化
  . CCS Chemistry, 2025, 7(10.31635/ccschem.025.202405229): -.
13. [13]
  Wei Zhong , Dan Zheng , Yuanxin Ou , Aiyun Meng , Yaorong Su . K原子掺杂高度面间结晶的g-C₃N₄光催化剂及其高效H₂O₂光合成. Acta Physico-Chimica Sinica, 2024, 40(11): 2406005-. doi: 10.3866/PKU.WHXB202406005
14. [14]
  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
15. [15]
  Juan WANG , Zhongqiu WANG , Qin SHANG , Guohong WANG , Jinmao LI . NiS and Pt as dual co-catalysts for the enhanced photocatalytic H₂ production activity of BaTiO₃ nanofibers. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1719-1730. doi: 10.11862/CJIC.20240102
16. [16]
  Jiapei Zou , Junyang Zhang , Xuming Wu , Cong Wei , Simin Fang , Yuxi Wang . A Comprehensive Experiment Based on Electrocatalytic Nitrate Reduction into Ammonia: Synthesis, Characterization, Performance Exploration, and Applicable Design of Copper-based Catalysts. University Chemistry, 2024, 39(6): 373-382. doi: 10.3866/PKU.DXHX202312081
17. [17]
  Lina Guo , Ruizhe Li , Chuang Sun , Xiaoli Luo , Yiqiu Shi , Hong Yuan , Shuxin Ouyang , Tierui Zhang . 层状双金属氢氧化物的层间阴离子对衍生的Ni-Al₂O₃催化剂光热催化CO₂甲烷化反应的影响. Acta Physico-Chimica Sinica, 2025, 41(1): 2309002-. doi: 10.3866/PKU.WHXB202309002
18. [18]
  Kun WANG , Wenrui LIU , Peng JIANG , Yuhang SONG , Lihua CHEN , Zhao DENG . Hierarchical hollow structured BiOBr-Pt catalysts for photocatalytic CO₂ reduction. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1270-1278. doi: 10.11862/CJIC.20240037
19. [19]
  Xi YANG , Chunxiang CHANG , Yingpeng XIE , Yang LI , Yuhui CHEN , Borao WANG , Ludong YI , Zhonghao HAN . Co-catalyst Ni₃N supported Al-doped SrTiO₃: Synthesis and application to hydrogen evolution from photocatalytic water splitting. Chinese Journal of Inorganic Chemistry, 2025, 41(3): 440-452. doi: 10.11862/CJIC.20240371
20. [20]
  Min WANG , Dehua XIN , Yaning SHI , Wenyao ZHU , Yuanqun ZHANG , Wei ZHANG . Construction and full-spectrum catalytic performance of multilevel Ag/Bi/nitrogen vacancy g-C₃N₄/Ti₃C₂T_x Schottky junction. Chinese Journal of Inorganic Chemistry, 2024, 40(6): 1123-1134. doi: 10.11862/CJIC.20230477

Get Citation

PDF

XML

Metrics

PDF Downloads(4)
Abstract views(531)
HTML views(31)

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 performance of highly dispersed WO3 loaded on CeO2 in the selective catalytic reduction of NO by NH3

Metrics

通讯作者: 陈斌, bchen63@163.com

Catalytic performance of highly dispersed WO₃ loaded on CeO₂ in the selective catalytic reduction of NO by NH₃