Artificial photosynthesis is expected to solve energy, environment, and resources issues. Water splitting and CO2 reduction of artificial photosynthesis have extensively been studied using photocatalyst materials. Various metal oxide and sulfide photocatalysts developed by the author’s original strategies are introduced. These heterogeneous photocatalyst materials have been applied to a single particle system, Z-schematic system, and photoelectrochemical systems for water splitting and CO2 reduction using water as an electron donor.
{"title":"Water Splitting and CO 2 Reduction using Metal Oxide and Sulfide Photocatalyst Materials","authors":"A. Kudo","doi":"10.1380/jsssj.38.268","DOIUrl":"https://doi.org/10.1380/jsssj.38.268","url":null,"abstract":"Artificial photosynthesis is expected to solve energy, environment, and resources issues. Water splitting and CO2 reduction of artificial photosynthesis have extensively been studied using photocatalyst materials. Various metal oxide and sulfide photocatalysts developed by the author’s original strategies are introduced. These heterogeneous photocatalyst materials have been applied to a single particle system, Z-schematic system, and photoelectrochemical systems for water splitting and CO2 reduction using water as an electron donor.","PeriodicalId":13075,"journal":{"name":"Hyomen Kagaku","volume":"5 1","pages":"268-273"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79107377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"In Order to Transmit Traditional Crafts to Posterity","authors":"Naohisa Maruyama","doi":"10.1380/jsssj.38.91","DOIUrl":"https://doi.org/10.1380/jsssj.38.91","url":null,"abstract":"","PeriodicalId":13075,"journal":{"name":"Hyomen Kagaku","volume":"137 1","pages":"91-93"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77221681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The β -NMR technique and its application to the study of materials science are introduced. Using some different types of accelerator facility, β -NMR probe nuclei for various elements are useful as a beam with wide energy range, which enables us to select an implantation depth into a sample from surface to bulk. Our recent β -NMR studies on 8 Li in Li ion conductor material Li 7 La 3 Zr 2 O 12 and 12 N in H 2 O are presented.
介绍了β核磁共振技术及其在材料科学研究中的应用。利用几种不同类型的加速器设备，对不同元素的β -NMR探针核作为一种宽能量范围的束流是有用的，这使我们能够选择从表面到体块的注入深度。本文介绍了我们最近对锂离子导体材料Li 7 La 3 Zr 2 o12中的8li和h2o中的12n的β -NMR研究。
{"title":"Fundamentals of β-NMR and its New Developments in Materials Science Studies","authors":"M. Mihara","doi":"10.1380/JSSSJ.38.188","DOIUrl":"https://doi.org/10.1380/JSSSJ.38.188","url":null,"abstract":"The β -NMR technique and its application to the study of materials science are introduced. Using some different types of accelerator facility, β -NMR probe nuclei for various elements are useful as a beam with wide energy range, which enables us to select an implantation depth into a sample from surface to bulk. Our recent β -NMR studies on 8 Li in Li ion conductor material Li 7 La 3 Zr 2 O 12 and 12 N in H 2 O are presented.","PeriodicalId":13075,"journal":{"name":"Hyomen Kagaku","volume":"140 1","pages":"188-193"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77521125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jo Onoda, Martin Ondrá Ccaron, Ek, P. Jelínek, Y. Sugimoto
Department of Advanced Materials Science, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561 Graduate School of Engineering, Osaka University, 2-1 Yamada-Oka, Suita, Osaka 565-0871 Institute of Physics, Czech Academy of Sciences, Cukrovarnická 10/112, Prague 162 00, Czech Republic Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Palacky University, Šlechtitelů 27, 783 71, Olomouc, Czech Republic
{"title":"Electronegativity Determination of Single Atoms by Atomic Force Microscopy","authors":"Jo Onoda, Martin Ondrá Ccaron, Ek, P. Jelínek, Y. Sugimoto","doi":"10.1380/JSSSJ.38.341","DOIUrl":"https://doi.org/10.1380/JSSSJ.38.341","url":null,"abstract":"Department of Advanced Materials Science, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561 Graduate School of Engineering, Osaka University, 2-1 Yamada-Oka, Suita, Osaka 565-0871 Institute of Physics, Czech Academy of Sciences, Cukrovarnická 10/112, Prague 162 00, Czech Republic Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Palacky University, Šlechtitelů 27, 783 71, Olomouc, Czech Republic","PeriodicalId":13075,"journal":{"name":"Hyomen Kagaku","volume":"11 1","pages":"341-346"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77976880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The resonance shear measurement (RSM), which we developed, can evaluate the rheological and tribological properties of confined liquids at surface separation distances (D) from μm (practically liquids are in the bulk state) to nm thicknesses. Thus, it is especially useful for studying the boundary lubrication for which the lubricant layer becomes in the nm level thickness and the solid surfaces are supposed to be partially in contact. In this article, we describe the principle and advantages of RSM, and review our recent RSM studies on tribology of nano-confined liquids. Four phenyl ether lubricant oils with different bulk viscosity confined between mica surfaces, and two ionic liquids ([C4 mim] [NTf2]) and [C4mim] [BF4]) showed significant increase in viscosity and the their magnitude relation became reverse when the gap became in nanometer thick. Friction of hydrogel (double network gel) and silica sphere was dominated by the elasticity of the deformed gel-silica interface.
{"title":"Resonance Shear Measurement on Nano-Confined Liquids and Friction Analysis","authors":"M. Mizukami, K. Kurihara","doi":"10.1380/JSSSJ.38.117","DOIUrl":"https://doi.org/10.1380/JSSSJ.38.117","url":null,"abstract":"The resonance shear measurement (RSM), which we developed, can evaluate the rheological and tribological properties of confined liquids at surface separation distances (D) from μm (practically liquids are in the bulk state) to nm thicknesses. Thus, it is especially useful for studying the boundary lubrication for which the lubricant layer becomes in the nm level thickness and the solid surfaces are supposed to be partially in contact. In this article, we describe the principle and advantages of RSM, and review our recent RSM studies on tribology of nano-confined liquids. Four phenyl ether lubricant oils with different bulk viscosity confined between mica surfaces, and two ionic liquids ([C4 mim] [NTf2]) and [C4mim] [BF4]) showed significant increase in viscosity and the their magnitude relation became reverse when the gap became in nanometer thick. Friction of hydrogel (double network gel) and silica sphere was dominated by the elasticity of the deformed gel-silica interface.","PeriodicalId":13075,"journal":{"name":"Hyomen Kagaku","volume":"18 1","pages":"117-122"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82494584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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