Home

Citation: Han Yu-Wang, Shen Jian-Yi, Chen Yi. Microcalorimetric Study on Surface Acidity of B-P-O Catalysts[J]. Acta Physico-Chimica Sinica, ;1997, 13(10): 916-920. doi: 10.3866/PKU.WHXB19971010 shu

Microcalorimetric Study on Surface Acidity of B-P-O Catalysts

1.
Department of Chemistry,Nanjing University,Nanjing 210093

Received Date: 24 January 1997
Available Online: 15 October 1997

The B-P-O catalysts with different P/B ratios from 0.8 to 1.3 were prapared and characterized. X-ray diffraction showed that B and P were of tetrahedral structure and Raman spectroscopy indicated that the catalysts with P/B>1 are abundant in P2O5 on the surface while the catalyst with P/B<1 is abundant in B2O3 on the surface. Microcalorimetric adsorption of ammonia, water and dimethyl ether(DME) was performed respectively to evaluate the surface acid properties of these catalysts. It was revealed that the catalyst with P/B<1 exhibited similar initial heat of adsorption of ammonia as γ-A12O3. However, the catalysts with P/B>1 displayed unusual low heat for the adsorption of ammonia. In addition, the curve of differential heat versus coverage of the ammonia passed through a maximum for the catalysts with P/B>1. According to the results of microcalorimetric adsorption of water, the above behavior can be explained by the dissociative adsorption of ammonia. This demonstrated that ammonia may not be a proper probe molecule for titration of acidity on B-P-O catalysts. Further study by using DME for the microcalorimetric adsorption showed that the surface arid strength measured in terms of initial adsorption heat increased with P content in the B-P-O catalysts.
- Borophosphate catalysts,
- Surface acidity,
- Microcalorimetric adsorption,
- Selection of probe molecules
1. [1]
  Feifei Yang , Wei Zhou , Chaoran Yang , Tianyu Zhang , Yanqiang Huang . Enhanced Methanol Selectivity in CO₂ Hydrogenation by Decoration of K on MoS₂ Catalyst. Acta Physico-Chimica Sinica, 2024, 40(7): 2308017-0. doi: 10.3866/PKU.WHXB202308017
2. [2]
  .
  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): -.
3. [3]
  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
4. [4]
  Jingkun Yu , Xue Yong , Ang Cao , Siyu Lu . Bi-Layer Single Atom Catalysts Boosted Nitrate-to-Ammonia Electroreduction with High Activity and Selectivity. Acta Physico-Chimica Sinica, 2024, 40(6): 2307015-0. doi: 10.3866/PKU.WHXB202307015
5. [5]
  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): 100081-0. doi: 10.1016/j.actphy.2025.100081
6. [6]
  Xingyang LI , Tianju LIU , Yang GAO , Dandan ZHANG , Yong ZHOU , Meng PAN . A superior methanol-to-propylene catalyst: Construction via synergistic regulation of pore structure and acidic property of high-silica ZSM-5 zeolite. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1279-1289. doi: 10.11862/CJIC.20240026
7. [7]
  Yang ZHOU , Lili YAN , Wenjuan ZHANG , Pinhua RAO . Thermal regeneration of biogas residue biochar and the ammonia nitrogen adsorption properties. Chinese Journal of Inorganic Chemistry, 2025, 41(8): 1574-1588. doi: 10.11862/CJIC.20250032
8. [8]
  Fangxuan Liu , Ziyan Liu , Guowei Zhou , Tingting Gao , Wenyu Liu , Bin Sun . 中空结构光催化剂. Acta Physico-Chimica Sinica, 2025, 41(7): 100071-0. doi: 10.1016/j.actphy.2025.100071
9. [9]
  Yuhui Yang , Jintian Luo , Biao Zuo . A Teaching Approach to Polymer Surface and Interface in Undergraduate Polymer Physics Courses. University Chemistry, 2025, 40(4): 126-130. doi: 10.12461/PKU.DXHX202408056
10. [10]
  Jiakun BAI , Ting XU , Lu ZHANG , Jiang PENG , Yuqiang LI , Junhui JIA . A red-emitting fluorescent probe with a large Stokes shift for selective detection of hypochlorous acid. Chinese Journal of Inorganic Chemistry, 2024, 40(6): 1095-1104. doi: 10.11862/CJIC.20240002
11. [11]
  Pingping Zhu , Qiang Zhou , Yu Huang , Haiyang Yang , Pingsheng He , Shiyan Xiao . Design and Practice of Ideological and Political Cases in the Course of Polymer Physics Experiments: Molecular Weight Determination of Polymers by Dilute Solution Viscosity Method as an Example. University Chemistry, 2025, 40(4): 94-99. doi: 10.12461/PKU.DXHX202405170
12. [12]
  Jiali CHEN , Guoxiang ZHAO , Yayu YAN , Wanting XIA , Qiaohong LI , Jian ZHANG . Machine learning exploring the adsorption of electronic gases on zeolite molecular sieves. Chinese Journal of Inorganic Chemistry, 2025, 41(1): 155-164. doi: 10.11862/CJIC.20240408
13. [13]
  Jun LUO , Baoshu LIU , Yunchang ZHANG , Bingkai WANG , Beibei GUO , Lan SHE , Tianheng CHEN . Europium(Ⅲ) metal-organic framework as a fluorescent probe for selectively and sensitively sensing Pb²⁺ in aqueous solution. Chinese Journal of Inorganic Chemistry, 2024, 40(12): 2438-2444. doi: 10.11862/CJIC.20240240
14. [14]
  Yukai Jiang , Yihan Wang , Yunkai Zhang , Yunping Wei , Ying Ma , Na Du . Characterization and Phase Diagram of Surfactant Lyotropic Liquid Crystal. University Chemistry, 2024, 39(4): 114-118. doi: 10.3866/PKU.DXHX202309033
15. [15]
  Zhuo WANG , Junshan ZHANG , Shaoyan YANG , Lingyan ZHOU , Yedi LI , Yuanpei LAN . Preparation and photocatalytic performance of CeO₂-reduced graphene oxide by thermal decomposition. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1708-1718. doi: 10.11862/CJIC.20240067
16. [16]
  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
17. [17]
  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
18. [18]
  Xuejie Wang , Guoqing Cui , Congkai Wang , Yang Yang , Guiyuan Jiang , Chunming Xu . Research Progress on Carbon-based Catalysts for Catalytic Dehydrogenation of Liquid Organic Hydrogen Carriers. Acta Physico-Chimica Sinica, 2025, 41(5): 100044-0. doi: 10.1016/j.actphy.2024.100044
19. [19]
  Xueting Feng , Ziang Shang , Rong Qin , Yunhu Han . Advances in Single-Atom Catalysts for Electrocatalytic CO₂ Reduction. Acta Physico-Chimica Sinica, 2024, 40(4): 2305005-0. doi: 10.3866/PKU.WHXB202305005
20. [20]
  Yuan Chun , Yongmei Liu , Fuping Tian , Hong Yuan , Shu'e Song , Wanchun Zhu , Yunchao Li , Zhongyun Wu , Xiaokui Wang , Yunshan Bai , Li Wang , Jianrong Zhang , Shuyong Zhang . Suggestions on Operating Specifications of Physical Chemistry Experiment: Measurement of Colloidal and Surface Chemical Properties, Molecular Structure and Properties. University Chemistry, 2025, 40(5): 178-188. doi: 10.12461/PKU.DXHX202503053

Get Citation

PDF

XML

Metrics

PDF Downloads(2271)
Abstract views(3439)
HTML views(20)

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