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    Solvent effects on high-pressure hydrogen gas generation by dehydrogenation of formic acid using ruthenium complexes

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    Type
    Article
    Authors
    Iguchi, Masayuki
    Guan, Chao cc
    Huang, Kuo-Wei cc
    Kawanami, Hajime
    KAUST Department
    Chemical Science Program
    Homogeneous Catalysis Laboratory (HCL)
    KAUST Catalysis Center (KCC)
    Physical Science and Engineering (PSE) Division
    Date
    2019-05-23
    Online Publication Date
    2019-05-23
    Print Publication Date
    2019-05
    Embargo End Date
    2021-05-23
    Permanent link to this record
    http://hdl.handle.net/10754/656301
    
    Metadata
    Show full item record
    Abstract
    High-pressure H2 was produced by the selective dehydrogenation of formic acid (DFA) using ruthenium complexes at mild temperatures in various organic solvents and water. Among the solvents studied, 1,4-dioxane was the best candidate for this reaction to generate high gas pressure of 20 MPa at 80 °C using the Ru complex having a dearomatized pyridine-based pincer PN3P* ligand. This complex shows reusability for the high-pressure DFA in 1,4-dioxiane while maintaining the catalytic performance, however, deactivation occurred in other solvents. In dimethyl sulfoxide, its decomposition products may cause catalytic deactivation. The gas pressure generated in 1,4-dioxane was lower than that in water due to the high dissolution of 1,4-dioxane into CO2 according the vapor-liquid equilibrium calculations. The role of solvent is crucial since it affected the catalytic performance and also the generated gas pressure (H2 and CO2) from FA.
    Citation
    Iguchi, M., Guan, C., Huang, K.-W., & Kawanami, H. (2019). Solvent effects on high-pressure hydrogen gas generation by dehydrogenation of formic acid using ruthenium complexes. International Journal of Hydrogen Energy, 44(53), 28507–28513. doi:10.1016/j.ijhydene.2019.04.272
    Sponsors
    M.I. and H.K. would like to acknowledge Dr. Maya Chatterjee for help with the manuscript preparation. This work was supported by the Japan Science and Technology Agency (JST), CREST (No. JPMJCR1342), and the International Joint Research Program for Innovative Energy Technology of the Ministry of Economy, Trade, and Industry (METI) of Japan for M.I. and H.K., and by King Abdullah University of Science and Technology for C.G. and K.-W.H
    Publisher
    Elsevier BV
    Journal
    International Journal of Hydrogen Energy
    DOI
    10.1016/j.ijhydene.2019.04.272
    Additional Links
    https://linkinghub.elsevier.com/retrieve/pii/S0360319919317902
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.ijhydene.2019.04.272
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Chemical Science Program; KAUST Catalysis Center (KCC)

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