Toru Murayama

Learn More
Biodegradability is one of the most important characteristics of an organic compound for predicting its fate and life in the environment and its application in biological wastewater treatment. But there is no general testing method for biodegradability under anaerobic conditions. The biodegradabilities of thirteen principal organic compounds was(More)
The biodegradations of 52 priority organic compounds were evaluated under anaerobic conditions by two tests developed in a preceding paper (Urano et al., 1995). Namely, the biodegradabilities of the compounds were classified into 13 ranks by the method proposed by Urano et al. (1995). Most of the aliphatic alcohols and carboxylic acids were not inhibitory(More)
The chemical modification of powdered beech wood by reaction with cyanuric chloride (2,4,6-trichloro-s-triazine) is discussed in terms of the reaction time and temperature, as well as the concentration of the aqueous sodium hydroxide solutions used in the preparation of alkali-treated wood powders. The influence of the surface structure of wood on the(More)
The development of new complex metal oxides having structural complexity suitable for solid-state catalysis is of great importance in fundamental catalysis research and practical applications. However, examples of these materials are rare. Herein, we report two types of crystalline complex metal oxides with new structures and their catalytic properties. The(More)
The effects of the type of fuel-cell reactors (undivided or divided by cation- and anion-exchange membranes), alkaline electrolytes (LiOH, NaOH, KOH), vapor-grown carbon fiber (VGCF) cathode components (additives: none, activated carbon, Valcan XC72, Black Pearls 2000, Seast-6, and Ketjen Black), and the flow rates of anolyte (0, 1.5, 12 mL h(-1)) and(More)
Two new ε-Keggin-type polyoxometalate-based 3D frameworks, Na1.5H11.4[ε-Zn(II)Mo(V)10.9Mo(VI)1.1O40{Zn(II)}2] and (NH4)2.1H7.5[ε-Mn(II)0.2Mo(V)6Mo(VI)6O40{Mn(II)}2], are prepared, and their structures are determined by powder X-ray diffraction, Fourier transform infrared, Raman spectroscopy, and elemental analysis. ε-Keggin-type polyoxomolybdate units,(More)
A new type of polyoxometalate-based porous material was successfully synthesized. The new material is the first fully inorganic Keggin-type polyoxometalate-based microporous material with intrinsically ordered open micropores and is the third member of the small family of octahedral molecular sieves (OMSs). Twelve MoO6 or VO6 octahedra surround a central(More)