title: Fabrication of Nitrogen-Doped Mesoporous-Carbon-Coated Palladium Nanoparticles: An Intriguing Electrocatalyst for Methanol and Formic Acid Oxidation.
abstract: Inspired by the attractive catalytic properties of palladium and the inert nature of carbon supports in catalysis, a concise and simple methodology for in situ nitrogen-doped mesoporous-carbon-supported palladium nanoparticles (Pd/N-C) has been developed by carbonizing a palladium dimethylglyoximate complex. The as-synthesized Pd/N-C has been exfoliated as a fuel cell catalyst by studying the electro-oxidation of methanol and formic acid. The material synthesized at 400 °C,namely, Pd/N-C-400,exhibitssuperior mass activity and stability among catalysts synthesized under different carbonization temperaturesbetween300 and 500 °C. The unique 1D porous structure in Pd/N-C-400 helps better electron transport at the electrode surface, which eventually leads to about five times better catalytic activity and about two times higher stability than that of commercial Pd/C. Thus, our designed sacrificial metal-organic templatedirected pathway becomes a promising technique for Pd/N-C synthesis with superior catalytic performances.
authors.affiliation: Department of Chemistry, Indian Institute of Technology, Kharagpur, India.
authors.forename: Chaiti
authors.initials: C
authors.lastname: Ray
authors.affiliation: Department of Chemistry, Indian Institute of Technology, Kharagpur, India.
authors.forename: Soumen
authors.initials: S
authors.lastname: Dutta
authors.affiliation: Department of Chemistry, Indian Institute of Technology, Kharagpur, India.
authors.forename: Ramkrishna
authors.initials: R
authors.lastname: Sahoo
authors.affiliation: Department of Chemistry, Indian Institute of Technology, Kharagpur, India.
authors.forename: Anindita
authors.initials: A
authors.lastname: Roy
authors.affiliation: Department of Applied Chemistry, Tokyo University of Science, Tokyo, 1628601, Japan.
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Negishi
authors.affiliation: Department of Chemistry, Indian Institute of Technology, Kharagpur, India. tpal@chem.iitkgp.ernet.in.
authors.forename: Tarasankar
authors.initials: T
authors.lastname: Pal
mesh_terms: D002244:Carbon / Q000737:chemistry; D002384:Catalysis; D056831:Coordination Complexes / Q000737:chemistry; D055664:Electrochemical Techniques; D005561:Formates / Q000737:chemistry*; D000432:Methanol / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry*; D009584:Nitrogen / Q000737:chemistry; D010084:Oxidation-Reduction; D010091:Oximes / Q000737:chemistry; D010165:Palladium / Q000737:chemistry*; D010316:Particle Size; D056951:Photoelectron Spectroscopy; D016062:Porosity
chemical_list: D056831:Coordination Complexes; D005561:Formates; D010091:Oximes; C030544:formic acid; C013501:dimethylglyoxime; D010165:Palladium; D002244:Carbon; D009584:Nitrogen; D000432:Methanol
keywords: doping; electrochemistry; nanoparticles; palladium; supported catalysts