Kyushu University Academic Staff Educational and Research Activities Database
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Haruno Murayama Last modified date:2018.06.25

Academic Degree
Ph.D. in Engineering
Country of degree conferring institution (Overseas)
Field of Specialization
Physical chemistry, Catalysis chemistry, X-ray structure analysis
Total Priod of education and research career in the foreign country
Research Interests
  • Investigation of electrolyte for lithium-ion batteries
    keyword : lithium-ion batteries, electrolyte, oxidation reaction
  • Preparation, structure analysis, and reaction of heterogeneous catalyst
    keyword : Catalysis, metal nano particles
Academic Activities
1. Haruno Murayama, Takayuki Hasegawa, Yusuke Yamamoto, Misaki Tone, Moemi Kimura, Tamao Ishida, Tetsuo Honma, Mitsutaka Okumura, Atsuko Isogai, Tsutomu Fujii, Makoto Tokunaga, Chloride-free and water-soluble Au complex for preparation of supported small nanoparticles by impregnation method, Journal of Catalysis, 10.1016/j.jcat.2017.07.002, 353, 74-80, 2017.01, A novel simple and easy impregnation method for preparation of small gold (Au) nanoparticle (NP) catalysts (< 3 nm) deposited on various supports including silica, which is difficult to be applied for conventional methods, has been developed. Chloride-free and water-soluble precursor, Au complexes coordinated with β-alanine, were successful for the preparing Au NPs, which exhibited an average diameter less than 3 nm. Thermal behavior of the Au complex was investigated by TG-DTA and in situ XAFS. XAFS analyses and DFT calculations revealed a molecular structure of the Au complex to be square-planar coordination structure and mononuclear complex of Au3+. Lower decomposition and reduction temperature of the chloride-free Au complex prevented Au atoms from aggregating and from following growth of Au particles. The prepared Au/SiO2 showed high selectivity for hydrogenation of 1-nitro-4-vinylbenzene into 1-ethyl-4-nitorobenzene and good performance for removal of unpalatable aroma by means of adsorption of polysulfide molecules..
2. Koji Kitada, Haruno Murayama, Katsutoshi Fukuda, Hajime Arai, Yoshiharu Uchimoto, Zempachi Ogumi, Eiichiro Matsubara, Factors determining the packing-limitation of active materials in the composite electrode of lithium-ion batteries, Journal of Power Sources, 10.1016/j.jpowsour.2015.09.105, 301, 11-17, 2016.01.
3. Haruno Murayama, Koji Kitada, Katsutoshi Fukuda, Akio Mitsui, Koji Ohara, Hajime Arai, Yoshiharu Uchimoto, Zempachi Ogumi, Eiichiro Matsubara, Spectroscopic X-ray diffraction for microfocus inspection of Li-ion batteries, Journal of Physical Chemistry C, 10.1021/jp5029273, 118, 36, 20750-20755, 2014.09.
Membership in Academic Society
  • The Chemical Society of Japan
  • Catalysis Society of Japan