Home

Citation: FAN Jie, XU Xiu-Feng, NIU Xian-Jun. Decomposition of CF₄ over Al₂O₃-Based Metal Oxides[J]. Acta Physico-Chimica Sinica, ;2008, 24(07): 1271-1276. doi: 10.3866/PKU.WHXB20080725 shu

Decomposition of CF₄ over Al₂O₃-Based Metal Oxides

1.
Institute of Applied Catalysis, Yantai University, Yantai 264005, Shandong Province, P. R. China

Received Date: 3 December 2007
Available Online: 24 April 2008

The decomposition of CF4 in the absence of water on γ-Al2O3-based metal oxides was carried out to destruct the disposal perfluoro-carbons (PFCs) from industrial processes. In the present work, the conversion of CF4 was tested over bare γ-Al2O3 at different temperatures of 825, 850 and 900 ℃. It was found that the initial activity of Al2O3 increased in the order of 825 ℃<850 ℃<900 ℃CO2 yield declined quickly with time on stream because the un-reacted γ-Al2O3 was transformed into inactive α-Al2O3 phase that resulted from the highly exothermic effect of Al2O3-fluorination reaction. As for the CF4 decomposition on M -Al2O3, fluorination of Mg species and the highly exothermic effect produced led to the collapse of MgAl2O4 structure, in which the magnesium element was fluorinated into MgF2. Al2O3 modified with P or Ni could inhibit the transformation of un-reacted γ-Al2O3 into α-Al2O3 during CF4 decomposition, and consequently CF4 conversion reached a stable level with time on stream.
- CF4 decomposition; Al2O3; Transformation of γ-Al2O3 into α-Al2O3; Modified Al2O3
1. [1]
  Hongyi LI , Aimin WU , Liuyang ZHAO , Xinpeng LIU , Fengqin CHEN , Aikui LI , Hao HUANG . Effect of Y(PO₃)₃ double-coating modification on the electrochemical properties of Li[Ni_0.8Co_0.15Al_0.05]O₂. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1320-1328. doi: 10.11862/CJIC.20230480
2. [2]
  Xinpeng LIU , Liuyang ZHAO , Hongyi LI , Yatu CHEN , Aimin WU , Aikui LI , Hao HUANG . Ga₂O₃ coated modification and electrochemical performance of Li_1.2Mn_0.54Ni_0.13Co_0.13O₂ cathode material. Chinese Journal of Inorganic Chemistry, 2024, 40(6): 1105-1113. doi: 10.11862/CJIC.20230488
3. [3]
  Dong-Xue Jiao , Hui-Li Zhang , Chao He , Si-Yu Chen , Ke Wang , Xiao-Han Zhang , Li Wei , Qi Wei . Layered (C5H6ON)2[Sb2O(C2O4)3] with a large birefringence derived from the uniform arrangement of π-conjugated units. Chinese Journal of Structural Chemistry, 2024, 43(6): 100304-100304. doi: 10.1016/j.cjsc.2024.100304
4. [4]
  Xiuzheng Deng , Changhai Liu , Xiaotong Yan , Jingshan Fan , Qian Liang , Zhongyu Li . Carbon dots anchored NiAl-LDH@In₂O₃ hierarchical nanotubes for promoting selective CO₂ photoreduction into CH₄. Chinese Chemical Letters, 2024, 35(6): 108942-. doi: 10.1016/j.cclet.2023.108942
5. [5]
  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
6. [6]
  Juan Guo , Mingyuan Fang , Qingsong Liu , Xiao Ren , Yongqiang Qiao , Mingju Chao , Erjun Liang , Qilong Gao . Zero thermal expansion in Cs₂W₃O₁₀. Chinese Chemical Letters, 2024, 35(7): 108957-. doi: 10.1016/j.cclet.2023.108957
7. [7]
  Tong Zhou , Xue Liu , Liang Zhao , Mingtao Qiao , Wanying Lei . Efficient Photocatalytic H₂O₂ Production and Cr(VI) Reduction over a Hierarchical Ti₃C₂/In₄SnS₈ Schottky Junction. Acta Physico-Chimica Sinica, 2024, 40(10): 2309020-. doi: 10.3866/PKU.WHXB202309020
8. [8]
  Renshu Huang , Jinli Chen , Xingfa Chen , Tianqi Yu , Huyi Yu , Kaien Li , Bin Li , Shibin Yin . Synergized oxygen vacancies with Mn2O3@CeO2 heterojunction as high current density catalysts for Li–O2 batteries. Chinese Journal of Structural Chemistry, 2023, 42(11): 100171-100171. doi: 10.1016/j.cjsc.2023.100171
9. [9]
  Guoqiang Chen , Zixuan Zheng , Wei Zhong , Guohong Wang , Xinhe Wu . 熔融中间体运输导向合成富氨基g-C₃N₄纳米片用于高效光催化产H₂O₂. Acta Physico-Chimica Sinica, 2024, 40(11): 2406021-. doi: 10.3866/PKU.WHXB202406021
10. [10]
  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
11. [11]
  Xuejiao Wang , Suiying Dong , Kezhen Qi , Vadim Popkov , Xianglin Xiang . Photocatalytic CO₂ Reduction by Modified g-C₃N₄. Acta Physico-Chimica Sinica, 2024, 40(12): 2408005-. doi: 10.3866/PKU.WHXB202408005
12. [12]
  Haojie Duan , Hejingying Niu , Lina Gan , Xiaodi Duan , Shuo Shi , Li Li . Reinterpret the heterogeneous reaction of α-Fe₂O₃ and NO₂ with 2D-COS: The role of SDS, UV and SO₂. Chinese Chemical Letters, 2024, 35(6): 109038-. doi: 10.1016/j.cclet.2023.109038
13. [13]
  Mingjiao Lu , Zhixing Wang , Gui Luo , Huajun Guo , Xinhai Li , Guochun Yan , Qihou Li , Xianglin Li , Ding Wang , Jiexi Wang . Boosting the performance of LiNi_0.90Co_0.06Mn_0.04O₂ electrode by uniform Li₃PO₄ coating via atomic layer deposition. Chinese Chemical Letters, 2024, 35(5): 108638-. doi: 10.1016/j.cclet.2023.108638
14. [14]
  Huyi Yu , Renshu Huang , Qian Liu , Xingfa Chen , Tianqi Yu , Haiquan Wang , Xincheng Liang , Shibin Yin . Te-doped Fe3O4 flower enabling low overpotential cycling of Li-CO2 batteries at high current density. Chinese Journal of Structural Chemistry, 2024, 43(3): 100253-100253. doi: 10.1016/j.cjsc.2024.100253
15. [15]
  Gengchen Guo , Tianyu Zhao , Ruichang Sun , Mingzhe Song , Hongyu Liu , Sen Wang , Jingwen Li , Jingbin Zeng . Au-Fe₃O₄ dumbbell-like nanoparticles based lateral flow immunoassay for colorimetric and photothermal dual-mode detection of SARS-CoV-2 spike protein. Chinese Chemical Letters, 2024, 35(6): 109198-. doi: 10.1016/j.cclet.2023.109198
16. [16]
  Xiuzheng Deng , Yi Ke , Jiawen Ding , Yingtang Zhou , Hui Huang , Qian Liang , Zhenhui Kang . Construction of ZnO@CDs@Co₃O₄ sandwich heterostructure with multi-interfacial electron-transfer toward enhanced photocatalytic CO₂ reduction. Chinese Chemical Letters, 2024, 35(4): 109064-. doi: 10.1016/j.cclet.2023.109064
17. [17]
  Heng Chen , Longhui Nie , Kai Xu , Yiqiong Yang , Caihong Fang . 两步焙烧法制备大比表面积和结晶性增强超薄g-C₃N₄纳米片及其高效光催化产H₂O₂. Acta Physico-Chimica Sinica, 2024, 40(11): 2406019-. doi: 10.3866/PKU.WHXB202406019
18. [18]
  Xinyu Yin , Haiyang Shi , Yu Wang , Xuefei Wang , Ping Wang , Huogen Yu . Spontaneously Improved Adsorption of H₂O and Its Intermediates on Electron-Deficient Mn^(3+δ)+ for Efficient Photocatalytic H₂O₂ Production. Acta Physico-Chimica Sinica, 2024, 40(10): 2312007-. doi: 10.3866/PKU.WHXB202312007
19. [19]
  Ping Lu , Baoyin Du , Ke Liu , Ze Luo , Abiduweili Sikandaier , Lipeng Diao , Jin Sun , Luhua Jiang , Yukun Zhu . Heterostructured In2O3/In2S3 hollow fibers enable efficient visible-light driven photocatalytic hydrogen production and 5-hydroxymethylfurfural oxidation. Chinese Journal of Structural Chemistry, 2024, 43(8): 100361-100361. doi: 10.1016/j.cjsc.2024.100361
20. [20]
  Kunyao Peng , Xianbin Wang , Xingbin Yan . Converting LiNO₃ additive to single nitrogenous component Li₂N₂O₂ SEI layer on Li metal anode in carbonate-based electrolyte. Chinese Chemical Letters, 2024, 35(9): 109274-. doi: 10.1016/j.cclet.2023.109274

Get Citation

PDF

XML

Metrics

PDF Downloads(1960)
Abstract views(3155)
HTML views(72)

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

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return

Decomposition of CF4 over Al2O3-Based Metal Oxides

Metrics

通讯作者: 陈斌, bchen63@163.com

Decomposition of CF₄ over Al₂O₃-Based Metal Oxides