九州大学 エネルギー基盤技術国際教育研究センター

International Industry-University-Government Collaboration Lab – Hideo Nagashima –

International Industry-University-Government Collaboration Lab

Professor

Hideo Nagashima

Specialization

Organometallic Chemistry, Homogeneous Catalysis

Affiliation

Institute for Materials Chemistry and Engineering

Research Topics

  • Element strategy initiative for homogeneous catalysis aimed at energy-saving chemical processes
  • Replacement of precious metals to base metals
  • Autonomous distributed power systems
  • Design of highly efficient catalysts
  • Catalyst recovery and recycling

Research Outline

The catalyst is a key substance for energy-saving processes and devices, from production of chemicals to fuel cells. Although many of the practically useful catalysts contain precious metals, world-wide economic growth results in their shortage. Element strategy initiative for homogeneous catalysts is proposed based on this background, aiming at establishing energy-saving processes producing chemicals in laboratory to industrial scales. Three detailed projects are running in our laboratory, replacement of precious metals to iron and other base metals, catalyst design to achieve extremely high catalyst efficiency, and facile catalyst recovery and recycling. Our research is on the solid basis of fundamental organometallic chemistry, and at the same time, is accompanied by collaborations with industries to pursue practical solutions of element strategy initiative.

A catalytic cycle of typical homogeneous catalysis and element strategy initiative

A catalytic cycle of typical homogeneous catalysis and element strategy initiative

The figure shows a typical catalytic cycle in homogeneous catalysis. Three targets of element starategy initiative, replacement of precious metals to base metals, highly efficient catalysts, and facile catalyst recovery and recycling are pursued in the project.

Treatment of air- and moisture sensitive organometallic compounds

Treatment of air- and moisture sensitive organometallic compounds

(left)A Schlenk tube to keep the sensitive compounds under an inert gas atmosphere, (center) A Schlenk tube connected to a vacuum line, (right) a globe box filled with dry nitrogen.

Direct numerical simulation of gas transfer at the water surface

Representative molecular catalysts in our group

(left) An iron catalyst for controlled radical polymerization, (center) A ruthenium catalyst for reduction of carbonyl compounds, (right) nanogold catalysts for oxidation.