title: Factors Influencing the Performance of Pd/C Catalysts in the Green Production of Hydrogen from Formic Acid.
abstract: Formic acid derived from biomass is known to be used for hydrogen production over Pd catalysts. The effects of preparation variables, structure of the carbon support, surface functional composition on the state of Pd, and catalytic properties of the samples in the vapor-phase decomposition of formic acid were studied. In all catalysts derived from Pd acetate, metal particles visible by conventional TEM had similar sizes, but the adsorption capacity towards CO responded strongly to N-doping of the carbon surface. Moreover, a decrease in the CO/Pd values was accompanied by a significant increase in the reaction rate. Taking account of X-ray photoelectron spectroscopy (XPS) and atomic resolution high-angle annular dark-field scanning transmission electron microscopy (HAADF/STEM) data, the trends observed were assigned to a larger fraction of single electron-deficient Pd atoms in the N-doped samples, which do not adsorb CO but interact with formic acid to produce hydrogen. This was confirmed by extended DFT studies. The obtained results are valuable for the development of Pd catalysts on carbon supports for different processes.
authors.affiliation: Chemical&Environmental Sciences Department, University of Limerick, Limerick, Ireland.|Materials&Surface Science Institute, University of Limerick, Limerick, Ireland.
authors.forename: Monika
authors.initials: M
authors.lastname: Zacharska
authors.affiliation: Novosibirsk State University, Novosibirsk, 630090, Russia.|Nikolaev Institute of Inorganic Chemistry, SB RAS, Novosibirsk, 630090, Russia.
authors.forename: Lyubov G
authors.initials: LG
authors.lastname: Bulusheva
authors.affiliation: Boreskov Institute of Catalysis, SB RAS, Novosibirsk, 630090, Russia.
authors.forename: Alexander S
authors.initials: AS
authors.lastname: Lisitsyn
authors.affiliation: Materials&Surface Science Institute, University of Limerick, Limerick, Ireland.
authors.forename: Sergey
authors.initials: S
authors.lastname: Beloshapkin
authors.affiliation: Materials&Surface Science Institute, University of Limerick, Limerick, Ireland.
authors.forename: Yina
authors.initials: Y
authors.lastname: Guo
authors.affiliation: CIC nanoGUNE Consolider, Donostia-, San Sebastián, 20018, Spain.|IKERBASQUE, Basque Foundation for Science, Bilbao, 20013, Spain.
authors.forename: Andrey L
authors.initials: AL
authors.lastname: Chuvilin
authors.affiliation: Novosibirsk State University, Novosibirsk, 630090, Russia.|Nikolaev Institute of Inorganic Chemistry, SB RAS, Novosibirsk, 630090, Russia.
authors.forename: Elena V
authors.initials: EV
authors.lastname: Shlyakhova
authors.affiliation: Boreskov Institute of Catalysis, SB RAS, Novosibirsk, 630090, Russia.|Novosibirsk State University, Novosibirsk, 630090, Russia.
authors.forename: Olga Y
authors.initials: OY
authors.lastname: Podyacheva
authors.affiliation: Chemical&Environmental Sciences Department, University of Limerick, Limerick, Ireland.|Materials&Surface Science Institute, University of Limerick, Limerick, Ireland.
authors.forename: James J
authors.initials: JJ
authors.lastname: Leahy
authors.affiliation: Novosibirsk State University, Novosibirsk, 630090, Russia.|Nikolaev Institute of Inorganic Chemistry, SB RAS, Novosibirsk, 630090, Russia.
authors.forename: Alexander V
authors.initials: AV
authors.lastname: Okotrub
authors.affiliation: Boreskov Institute of Catalysis, SB RAS, Novosibirsk, 630090, Russia.|Novosibirsk State University, Novosibirsk, 630090, Russia.|Nikolaev Institute of Inorganic Chemistry, SB RAS, Novosibirsk, 630090, Russia.
authors.forename: Dmitri A
authors.initials: DA
authors.lastname: Bulushev
mesh_terms: D000327:Adsorption; D018533:Biomass; D002244:Carbon / Q000737:chemistry*; D002248:Carbon Monoxide; D002384:Catalysis; D005561:Formates / Q000737:chemistry*; D055772:Green Chemistry Technology / Q000379:methods*; D006859:Hydrogen / Q000737:chemistry*; D010165:Palladium / Q000737:chemistry*
chemical_list: D005561:Formates; C030544:formic acid; D010165:Palladium; D002244:Carbon; D002248:Carbon Monoxide; D006859:Hydrogen
keywords: biomass; carbon; doping; hydrogen; palladium