Carbon-based Energy Carrier Research Team

CO2-free fuel and CO2 recycling
Developing a Hydrogen Carrier System for CO2 Utilization

We are engaged in the research and development of energy (hydrogen) storage technologies based on interconversion between CO2 and formic acid/methanol, for CO2 utilization.

Carbon-based Energy Carrier Research Team

Research themes

  • Development of highly efficient catalysts that enable formic acid/methanol to be produced through carbon dioxide reduction (i.e., hydrogenation, electro-reduction), and that allow hydrogen to be produced from formic acid
  • Investigation into technologies for producing high-pressure hydrogen from formic acid

Concept for social contributions and implementation

Establishment of a hydrogen transport, storage and usage method using formic acid/methanol.

Research Team Leader / Greetings

Prime Senior Researcher(Leader, Carbon-based Energy Carrier Research Team)

HIMEDA Yuichiro

Facilities and infrastructure are crucial for the implementation of energy carrier technology using formic acid/methanol. We need the help of many different industrial partners in our research going forward. We believe that these collaborations will provide new technologies for generating high-pressure hydrogen from formic acid, and for supplying it to fuel cell vehicles (FCVs).

HIMEDA Yuichiro


Associate Manager, Research Planning Office of Zero Emission(Carbon-based Energy Carrier Research Team)






Technical staff


Technical staff


The aims in this team are development of highly efficient catalysts for interconversion between CO2 and formic acid/methanol (i.e., hydrogenation, electro-reduction, and dehydrogenation) and the high-pressure reaction process.

Production of Formic Acid and methanol by Reduction of CO2

The catalyst that we have developed showed the highest performance for CO2 reduction (hydrogenation, electro-reduction) to formic acid and methanol. These catalysts can convert CO2 with high energy efficiency under mild reaction conditions.

High-Pressure H2 Production from Formic Acid

The high-performance catalysts which can supply high-pressure (> 1000 atm) and CO-free H2 by heating (<100 oC) of formic acid was developed. In addition, gas-liquid phase separation can easily separate of CO2 from the high-pressure system. The high-pressure H2 production from formic acid is original AIST’s technology.


Liu, X.; Dong, W.-Z.; Li, Y.; Yu, X.; Wang, W.-H.; Himeda, Y.; Bao, M., Efficient β-alkylation of secondary alcohols to α-substituted ketones catalyzed by functionalized Ir complexes via borrowing hydrogen in water, Org. Chem. Front. 2023, 10, 355-362, 10.1039/D2QO01541B

Published NOV 22 2022

Wang, L.; Wang, L.; Yuan, S.; Song, L.; Ren, H.; Xu, Y.; He, M.; Zhang, Y.; Wang, H.; Huang, Y.; Wei, T.; Zhang, J.; Himeda, Y.; Fan, Z., Covalently-bonded single-site Ru-N2 knitted into covalent triazine frameworks for boosting photocatalytic CO2 reduction, Appl. Catal. B-Environ. 2023, 322, 122097, 10.1016/j.apcatb.2022.122097

Published OCT 25 2022

Onishi, N.Himeda, Y., Homogeneous catalysts for CO2 hydrogenation to methanol and methanol dehydrogenation to hydrogen generation, Coord. Chem. Rev. 2022, 472, 214767, 10.1016/j.ccr.2022.214767

Published AUG 24 2022

Liu, M.; Xu, Y.; Meng, Y.; Wang, L.; Wang, H.; Huang, Y.; Onishi, N.; Wang, L.; Fan, Z.; Himeda, Y., Heterogeneous Catalysis for Carbon Dioxide Mediated Hydrogen Storage Technology Based on Formic Acid, Adv. Energy Mater. 2022, 12(31), 2200817, 10.1002/aenm.202200817

Published JUN 07 2022