Synthesis and CO_2 Absorption Property of Li_4TiO_4 as a Novel CO_2 Absorbent

スポンサーリンク

概要

• 論文の詳細を見る

• Synthesis and CO_2 absorption property of Li_4TiO_4 oxide were studied by X-ray powder diffraction and thermogravimetry. Samples were prepared by the solid state method using Li_2CO_3 and Anatase or Rutile TiO_2 as starting reagents. From the results of XRD, it was found that single phase Li_4TiO_4 can be obtained from Anatase TiO_2 and Li_2CO_3 with 1:2.1 molar ratio in an alumina cell in atmosphere of Ar : H_2=80vol% : 20vol% gas mixture (150 mL/min of flow rate) by heat-treatment up to 1000℃ with 5℃/min of heating rate. By the results of thermogravimetry, it was found that single phase Li_4TiO_4 can absorb CO_2 in the temperature range of 300℃ to 856℃, and the maximum absorption is 42 mass% at 856℃. From the results of XRD, LiTiO_x and Li_2CO_3 phases were found in the Li_4TiO_4 sample after complete CO_2 absorption. Therefore, it is supposed that following reaction occurs in the reaction process between Li_4TiO_4 and CO_2. 42 mass% of the maximum absorption could be predicted on the basis of the reaction. Li_4TiO_4(s)+1.5CO_2(g)↔LiTiO_x(s)+1.5Li_2CO_3(s)+(2.5-x)/2 O_2(g) x=2〜2.5

• 2007-05-01

著者

• Okumura Takeshi

  Department Of Applied Chemistry Faculty Of Science And Engineering Chuo University

• Oh-ishi Katsuyoshi

  Department Of Applied Chemistry Faculty Of Science And Engineering Chuo University

• TOGASHI Nobuaki

  Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University

• Togashi Nobuaki

  Department Of Applied Chemistry Faculty Of Science And Engineering Chuo University

• Ohishi Katsuyoshi

  Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University

関連論文

• Complexes with Fe^_2(μ-O)(μ-OH) Core Surrounded by Hydrogen-Bonding Interaction
• Characteristics of Mononuclear Ruthenium-Oxo Complexes Adjusted by Axial Ligand for the Catalysis of Oxygen-Transfer Reactions
• Selective Epoxidation of Cyclohexene by a Square-planar Ru Complex Immobilized into Mesoporous Silicate FSM-16
• Preparation of a Carboxylate-binding Mononuclear Iron(II) (-)-Sparteine Complex with Structural Distortion and Its Reaction with Oxidants
• Synthesis and CO_2 Absorption Properties of Single-phase Li_2CuO_2 as a CO_2 Absorbent
• Synthesis and CO_2 Absorption Property of Li_4TiO_4 as a Novel CO_2 Absorbent
• Clinical Results of Total Hip Arthroplasty in Rheumatoid Arthritis
• Relation between oxygen concentration in AlN lattice and thermal conductivity of AlN ceramics sintered with various sintering additives
• Particle size dependence of CO_2 absorption rate of powdered Li_4SiO_4 with different particle size

スポンサーリンク