Heat of adsorption from solution. II. The heat of adsorption of pyridine on silica-alumina from the hexane solution.
スポンサーリンク
概要
- 論文の詳細を見る
The amounts of physisorbed and chemisorbed pyridine on silica–alumina in the hexane solution were measured at 30°C, and found to be 1.25 and 0.25 molecules/100 Å<SUP>2</SUP> respectively. The number of strong acid sites determined by Benesi's method are in good agreement with the chemisorbed molecules, which indicates that the ratio of the number of chemisorbed pyridine molecules to that of the strong acid sites on the surface of silica–alumina is equal. The adsorption calorimetry was carried out on the same system by means of a flow microcalorimeter which permits us to differentiate the heats of physisorption and chemisorption: the results showed that the heats of physisorption and chemisorption of pyridine are 11.3±0.3 and 22±4 kcal/mol respectively.
- 公益社団法人 日本化学会の論文
著者
-
Naono Hiromitu
Department of Chemistry, Faculty of Science, Okayama University
-
MORIMOTO Tetsuo
Department of Bio-mechanical Systems, Faculty of Agriculture, Ehime University
-
Moori Kazuko
Department of Chemistry, Faculty of Science, Okayama University
関連論文
- Speaking Plant/Fruit Approach for Greenhouses and Plant Factories
- EXAFS Studies on Y_Ba_xCuO_Superconductors
- Dynamic Optimization of Watering in Satsuma Mandarin using Neural Networks and Genetic Algorithms
- Zero Energy Cool Chamber for Extending the Shelf-Life of Tomato and Eggplant
- Asymmetric adsorption of alanine by quartz powder from ethanol solution.
- Hydrothermally activated silica-alumina. II. Variations in catalytic activites for 1-butene isomerization and polymerization, and in the amount of acid with pretreatment temperature.
- Understanding Perceptions Regarding Availability, Quality, Status and Methods Used in Storing Fruits and Vegetables in Pakistan′s Dera Ismail Khan District
- Surface nonstoichiometry and isoelectric point of manganese oxide.
- The hydrothermal activation of silica-alumina for butene isomerization. A device to prepare a standard sample.
- The thermal desorption of surface hydroxyls on tin(IV) oxide.
- Spherical particles and their surface properties. III. Formation of spherical particles of metal oxides by O2-H2 flame fusion.
- Isoelectric Point of Manganese Oxide
- Heat of ion exchange reaction as determined by means of flow micro-calorimetry. I. Cation exchange in aqeous system.
- Surface Water Content of Metal Oxides. II. Measurement of Samples Containing Pores: Silica, Alumina and Silica-Alumina
- The Heat of Adsorption from Solution. I. The Heat of Adsorption of Benzene on Silica Gel from the Benzene-Cyclohexane Solution
- Analysis of the heat of breaking glass ampoules.
- The Electrification of Iron Oxide in Water
- Interaction between Carbon Dioxide and the Zinc Oxide Surface
- Porous Structure Formed by the Decomposition of the Surface Product on ZnO Preserved in the Atmosphere
- Pore structure of iron oxides.
- Heat of adsorption from solution. II. The heat of adsorption of pyridine on silica-alumina from the hexane solution.
- The Adsorption of Water on SiO2, Al2O3, and SiO2·Al2O3. The Relation between the Amounts of Physisorbed and Chemisorbed Water
- The Relation between the Amounts of Chemisorbed and Physisorbed Water on Zinc Oxide
- Relation between amounts of chemisorbed water and ammonia on zinc oxide.
- Water Content on Metal Oxides. I. Water Content on Silica Gel, Magnesium Oxide, Zinc Oxide, and Titanium Dioxide