Role of Ti-O-Zr bonding in TiO2-ZrO2 catalyst for dehydrogenation of ethylbenzene.
スポンサーリンク
概要
- 論文の詳細を見る
A relationship between acid amounts over TiO<SUB>2</SUB>–ZrO<SUB>2</SUB> catalysts and their activities for nonoxidative dehydrogenation of ethyl benzene to styrene was examined. The catalysts were prepared by two different methods; one is simultaneous hydrolysis of Ti and Zr mixed alkoxides solution and the other is physical mixing of pure TiO<SUB>2</SUB> and ZrO<SUB>2</SUB>. The former consists of fine TiO<SUB>2</SUB> and ZrO<SUB>2</SUB> particles and is expected a lot of Ti–O–Zr bonding between the fine particles, while the latter is composed of large particles and less amounts of Ti–O–Zr bonding might be expected. Although the Ti–O–Zr bonding has been considered to generate a new acid site and to enhance the rate of dehydrogenation of ethylbenzene, the acid amounts and the rates observed on unit surface areas of both catalysts were not significantly different. On the basis of these results, the role of Ti–O–Zr bondig in TiO<SUB>2</SUB>–ZrO<SUB>2</SUB> catalyst for dehydrogenation of ethylbenzene is discussed.
- 公益社団法人 日本化学会の論文
著者
-
Nakabayashi Hirotoshi
Department Of Materials Science And Engineering Kochi National College Of Technology
-
Hirashima Yutaka
Department Of Neurosurgery Toyama Medical And Pharmaceutical University
-
Ueno Akifumi
Department of Chemistry, The University of Tokyo
-
Tsuiki Hideyasu
Department of Materials Science, Toyohashi University of Technology
-
Nishiwaki Katsuhiko
Department of Materials Science, Toyohashi University of Technology
-
Miyakoshi Akihiko
Department of Materials Science, Toyohashi University of Technology
-
Hirashima Yutaka
Department of Materials Science, Toyohashi University of Technology
-
Nakabayashi Hirotoshi
Department of Chemistry, Kochi Technical College
関連論文
- Clinical Value of Constructional Skill Testing in Patients With Secondary Normal Pressure Hydrocephalus : Two Case Reports
- Involvement of Meteorological Factors and Sex in the Occurrence of Subarachnoid Hemorrhage in Japan
- Characteristics of Helmet or Knit Cap Use in Head Injury of Snowboarders : Analysis of 1,190 Consecutive Patients
- Vidian Artery as a Collateral Channel Between the External and Occluded Internal Carotid Arteries : Case Report
- Effect of Platelet-Activating Factor Receptor Antagonist, Etizolam, on Resolution of Chronic Subdural Hematoma : A Prospective Study to Investigate Use as Conservative Therapy
- Mechanical Injury of the Subthalamic Area During Stereotactic Surgery Followed by Improvement of Trunk, Neck, and Face Tremor : Case Report
- Vidian Artery as a Collateral Channel Between the External and Occluded Internal Carotid Arteries : Case Report
- Duration of Cerebrospinal Fluid Drainage in Patients With Aneurysmal Subarachnoid Hemorrhage for Prevention of Symptomatic Vasospasm and Late Hydrocephalus
- Isolated Third and Fourth Ventricles Associated With Neurosarcoidosis Successfully Treated by Neuroendoscopy : Case Report
- Tension Pneumocephalus After a Neuroendoscopic Procedure : Case Report
- Supratentorial Dynamic Computed Tomography for the Diagnosis of Vertebrobasilar Ischemic Stroke
- Idiopathic Interdural Hematoma Looking Like a "Chinese Dumpling" : Case Report
- Brain Temperature in Patients with Chronic Hydrocephalus after Subarachnoid Hemorrhage
- Lambdoid Synostosis Associated with Chronic Tonsillar Herniation and Hydrocephalus
- Neuroendoscopic Septostomy for Isolated Lateral Ventricle
- Multiple Intracranial Seeding of Craniopharyngioma after Repeated Surgery
- Blade Crossing of a Pure Titanium Clip Applied to a Cerebral Aneurysm
- Endoscopic Ventriculocystostomy through the Septum Pellucidum via the Contralateral Anterior Horn : Technical Note
- Etizolam, an Anti-anxiety Agent, Attenuates Recurrence of Chronic Subdural Hematoma : Evaluation by Computed Tomography
- Efficacy of Navigation in Skull Base Surgery using Composite Computer Graphics of Magnetic Resonance and Computed Tomography Images
- Hypothermia after Reperfusion Suppresses Aggravation of Acute Brain Edema following Transient Forebrain Ischemia in Mice
- Properties of Acid Sites Generated on Sol-Gel Derived Zn_2SiO_4
- Effects of Water Vapor upon Partial Oxidation of Methane over Highly-dispersed MoO_3/SiO_2
- Difference in Catalytic Combustion of Propane and Propene on Pt/Al_2O_3 Catalyst
- Preparation of an Electrically Heated Wire Catalyst for Cold-Start-Exhaust
- Studies on Active Species for Selective Catalytic Reduction of NO on Alumina-Supported Cobalt Oxide Catalysts
- Preparation of Polycrystalline Bismuth and Aluminum Substituted Yttrium-Iron Garnet Films by Repetitive Gel Coating on Glass Substrates
- Characterization of Maghemite Thin Films Prepared by Spin-Coating a Gel Solution
- Endovascular Treatment of Unusual Multiple Aneurysms of the Internal Carotid Artery-Posterior Communicating Artery Complex
- Japan Carotid Atherosclerosis Study : JCAS (EBM of Neurosurgical Disease in Japan)
- Effect of a Platelet-Activating Factor Receptor Antagonist, E5880, on Cerebral Vasospasm after Aneurysmal Subarachnoid Hemorrhage : Open Clinical Trial to Investigate Efficacy and Safety
- Endoscopic Aqueductal Plasty via the Fourth Ventricle Through the Cerebellar Hemisphere under Navigating System Guidance : Technical Note
- Analysis of Plasma and Hematoma Lipids Related to Choline Glycerophospholipid in Patients with Chronic Subdural Hematoma
- Sequential Changes in the Platelet Count in Patients with Symptomatic Vasospasm after Subarachnoid Hemorrhage
- Posterior Inferior Cerebellar Artery Aneurysm associated with Fenestration of the Vertebral Artery : Case Report
- Effects of Cl Ions upon Combustion of Particulate on TiO_2-supported CuO Catalysts
- Vertebrobasilar Insufficiency in a Patient with Persistent Trigeminal Artery and Stenosis of the Ipsilateral Carotid Bifurcation : Case Report
- Hypothermia during Ischemia Protects against Neuronal Death but Not Acute Brain Edema following Transient Forebrain Ischemia in Mice
- Acidic Properties and Catalytic Activities of Sol-gel Derived Zn_2SiO_4
- Preparation of Micro-Crystalline ZrO_2 with Monoclinic Structure and Its Strong Acid and Base Sites
- Strong Acid Sites Created on Small-Sized Anatase.
- Particle size of nickel in nickel-alumina catalysts and its effects on propene hydrogenation.
- Control of the impregnation profile of Co in an Al2O3 sphere.
- Role of Ti-O-Zr bonding in TiO2-ZrO2 catalyst for dehydrogenation of ethylbenzene.
- Preparation of superconductive films by fume pyrolysis.