Home

Citation: LIU Rui-Hui, ZHANG Cun-Man, MA Jian-Xin. Al₂O₃-Modified Fe₂O₃ Based ld Catalysts with od Thermal Stability[J]. Acta Physico-Chimica Sinica, ;2009, 25(11): 2261-2269. doi: 10.3866/PKU.WHXB20091101 shu

Al₂O₃-Modified Fe₂O₃ Based ld Catalysts with od Thermal Stability

1.
School of Environmental Science and Engineering, Tongji University, Shanghai 200092, P. R. China

Received Date: 18 May 2009
Available Online: 7 September 2009

Al2O3-modified Fe2O3 based ld catalysts with od thermal stability were prepared by co-precipitation and deposition-precipitation method. Characterization techniques, such as transmission electron microscope (TEM), X-ray diffraction (XRD), N2 adsorption-desorption, and thermogravimetry-differential scanning calorimetry (TG-DSC), were used to investigate the structures, and surface morphologies of the catalysts. TEM results showed that after calcination at 500 ℃ the size distribution of the ld particles in the catalyst without Al2O3 doping was wide, the average diameter of the ld particles was about 7.0 nmand the size of the support particles ranged from 50 to 100 nm. However, the size distribution of the ld particles in the Al2O3-doped catalysts was narrow and the average diameter of the ld particles was around 5.0 nm. The Al2O3-doped Fe2O3 based Au particle size remained in a range of 30-50 nm, which is smaller than that of the Fe2O3 grains that were not doped with Al2O3. N2 adsorption-desorption measurements showed that Al2O3 doping resulted in a stable mesoporous structure for the catalysts and remained a higher specific surface area, which promoted the thermal stability of the support. XRD and TG-DSC results indicated that Al2O3 doping retarded the crystallization of the support and consequently inhibited the growth of ld particles during high-temperature calcination. Low temperature CO oxidation was used as a probe reaction to evaluate the catalytic activity. Even when calcined at 500 ℃ for 12 h, the catalyst with Al2O3 doping achieved complete CO conversion at 26.7 ℃ while the lowest temperature of the complete CO conversion (T100) of the catalyst without Al2O3 doping was as high as 61.6 ℃. Apparently, thermal stability is enhanced considerably by Al2O3 doping.
- Nano-structured ld catalyst,
- Ferric oxide support,
- Thermal stability,
- Al2O3,
- CO oxidation at low-temperature
1. [1]
  Liuyun Chen , Wenju Wang , Tairong Lu , Xuan Luo , Xinling Xie , Kelin Huang , Shanli Qin , Tongming Su , Zuzeng Qin , Hongbing Ji . Soft template-induced deep pore structure of Cu/Al₂O₃ for promoting plasma-catalyzed CO₂ hydrogenation to DME. Acta Physico-Chimica Sinica, 2025, 41(6): 100054-0. doi: 10.1016/j.actphy.2025.100054
2. [2]
  Yuchen Zhou , Huanmin Liu , Hongxing Li , Xinyu Song , Yonghua Tang , Peng Zhou . Designing thermodynamically stable noble metal single-atom photocatalysts for highly efficient non-oxidative conversion of ethanol into high-purity hydrogen and value-added acetaldehyde. Acta Physico-Chimica Sinica, 2025, 41(6): 100067-0. doi: 10.1016/j.actphy.2025.100067
3. [3]
  Xuewei BA , Cheng CHENG , Huaikang ZHANG , Deqing ZHANG , Shuhua LI . Preparation and luminescent performance of Sr_1-xZrSi₂O₇∶xDy³⁺ phosphor with high thermal stability. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 357-364. doi: 10.11862/CJIC.20240096
4. [4]
  Wang Wang , Yucheng Liu , Shengli Chen . Use of NiFe Layered Double Hydroxide as Electrocatalyst in Oxygen Evolution Reaction: Catalytic Mechanisms, Electrode Design, and Durability. Acta Physico-Chimica Sinica, 2024, 40(2): 2303059-0. doi: 10.3866/PKU.WHXB202303059
5. [5]
  Wentao Xu , Xuyan Mo , Yang Zhou , Zuxian Weng , Kunling Mo , Yanhua Wu , Xinlin Jiang , Dan Li , Tangqi Lan , Huan Wen , Fuqin Zheng , Youjun Fan , Wei Chen . Bimetal Leaching Induced Reconstruction of Water Oxidation Electrocatalyst for Enhanced Activity and Stability. Acta Physico-Chimica Sinica, 2024, 40(8): 2308003-0. doi: 10.3866/PKU.WHXB202308003
6. [6]
  Lina Guo , Ruizhe Li , Chuang Sun , Xiaoli Luo , Yiqiu Shi , Hong Yuan , Shuxin Ouyang , Tierui Zhang . Effect of Interlayer Anions in Layered Double Hydroxides on the Photothermocatalytic CO₂ Methanation of Derived Ni-Al₂O₃ Catalysts. Acta Physico-Chimica Sinica, 2025, 41(1): 100002-0. doi: 10.3866/PKU.WHXB202309002
7. [7]
  Qing Li , Guangxun Zhang , Yuxia Xu , Yangyang Sun , Huan Pang . P-Regulated Hierarchical Structure Ni₂P Assemblies toward Efficient Electrochemical Urea Oxidation. Acta Physico-Chimica Sinica, 2024, 40(9): 2308045-0. doi: 10.3866/PKU.WHXB202308045
8. [8]
  Jiaxi Xu , Yuan Ma . Influence of Hyperconjugation on the Stability and Stable Conformation of Ethane, Hydrazine, and Hydrogen Peroxide. University Chemistry, 2024, 39(11): 374-377. doi: 10.3866/PKU.DXHX202402049
9. [9]
  Jingyi Xie , Qianxi Lü , Weizhen Qiao , Chenyu Bu , Yusheng Zhang , Xuejun Zhai , Renqing Lü , Yongming Chai , Bin Dong . Enhancing Cobalt―Oxygen Bond to Stabilize Defective Co₂MnO₄ in Acidic Oxygen Evolution. Acta Physico-Chimica Sinica, 2024, 40(3): 2305021-0. doi: 10.3866/PKU.WHXB202305021
10. [10]
  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
11. [11]
  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
12. [12]
  Hailian Tang , Siyuan Chen , Qiaoyun Liu , Guoyi Bai , Botao Qiao , Liu Fei . Stabilized Rh/hydroxyapatite Catalyst for Furfuryl Alcohol Hydrogenation: Application of Oxidative Strong Metal-Support Interactions in Reducing Conditions. Acta Physico-Chimica Sinica, 2025, 41(4): 2408004-0. doi: 10.3866/PKU.WHXB202408004
13. [13]
  Xuyang Wang , Jiapei Zhang , Lirui Zhao , Xiaowen Xu , Guizheng Zou , Bin Zhang . Theoretical Study on the Structure and Stability of Copper-Ammonia Coordination Ions. University Chemistry, 2024, 39(3): 384-389. doi: 10.3866/PKU.DXHX202309065
14. [14]
  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
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]
  Zhanggui DUAN , Yi PEI , Shanshan ZHENG , Zhaoyang WANG , Yongguang WANG , Junjie WANG , Yang HU , Chunxin LÜ , Wei ZHONG . Preparation of UiO-66-NH₂ supported copper catalyst and its catalytic activity on alcohol oxidation. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 496-506. doi: 10.11862/CJIC.20230317
17. [17]
  Bing WEI , Jianfan ZHANG , Zhe CHEN . Research progress in fine tuning of bimetallic nanocatalysts for electrocatalytic carbon dioxide reduction. Chinese Journal of Inorganic Chemistry, 2025, 41(3): 425-439. doi: 10.11862/CJIC.20240201
18. [18]
  Xiaojing Tian , Zhichun Huang , Qingsong Zhang , Xu Wang , Ning Yang , Nanping Deng . PNIPAm Thermo-Responsive Nanofibers Mats: Morphological Stability and Response Behavior under Cross-Linking. Acta Physico-Chimica Sinica, 2024, 40(4): 2304037-0. doi: 10.3866/PKU.WHXB202304037
19. [19]
  Haoyu Sun , Dun Li , Yuanyuan Min , Yingying Wang , Yanyun Ma , Yiqun Zheng , Hongwen Huang . Hierarchical Palladium-Copper-Silver Porous Nanoflowers as Efficient Electrocatalysts for CO₂ Reduction to C₂₊ Products. Acta Physico-Chimica Sinica, 2024, 40(6): 2307007-0. doi: 10.3866/PKU.WHXB202307007
20. [20]
  Shijie Ren , Mingze Gao , Rui-Ting Gao , Lei Wang . Bimetallic Oxyhydroxide Cocatalyst Derived from CoFe MOF for Stable Solar Water Splitting. Acta Physico-Chimica Sinica, 2024, 40(7): 2307040-0. doi: 10.3866/PKU.WHXB202307040

Get Citation

PDF

XML

Metrics

PDF Downloads(1369)
Abstract views(2741)
HTML views(12)

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

Al2O3-Modified Fe2O3 Based ld Catalysts with od Thermal Stability

Metrics

通讯作者: 陈斌, bchen63@163.com

Al₂O₃-Modified Fe₂O₃ Based ld Catalysts with od Thermal Stability