title: Enhancement of Nitrite Reduction Kinetics on Electrospun Pd-Carbon Nanomaterial Catalysts for Water Purification.
abstract: We report a facile synthesis method for carbon nanofiber (CNF) supported Pd catalysts via one-pot electrospinning and their application for nitrite hydrogenation. A mixture of Pd acetylacetonate (Pd(acac)2), polyacrylonitrile (PAN), and nonfunctionalized multiwalled carbon nanotubes (MWCNTs) was electrospun and thermally treated to produce Pd/CNF-MWCNT catalysts. The addition of MWCNTs with a mass loading of 1.0-2.5 wt % (to PAN) significantly improved nitrite reduction activity compared to the catalyst without MWCNT addition. The results of CO chemisorption confirmed that the addition of MWCNTs increased Pd exposure on CNFs and hence improved catalytic activity.
authors.affiliation: Department of Civil and Environmental Engineering, The George Washington University , Washington, D.C. 20052, United States.
authors.forename: Tao
authors.initials: T
authors.lastname: Ye
authors.affiliation: Department of Chemistry, Johns Hopkins University , Baltimore, Maryland 21218, United States.
authors.forename: David P
authors.initials: DP
authors.lastname: Durkin
authors.affiliation: Department of Chemical, Biological and Pharmaceutical Engineering, New Jersey Institute of Technology , Newark, New Jersey 07102, United States.
authors.forename: Maocong
authors.initials: M
authors.lastname: Hu
authors.affiliation: Department of Chemical, Biological and Pharmaceutical Engineering, New Jersey Institute of Technology , Newark, New Jersey 07102, United States.
authors.forename: Xianqin
authors.initials: X
authors.lastname: Wang
authors.affiliation: Department of Chemistry, The George Washington University , Washington, D.C. 20052, United States.
authors.forename: Nathan A
authors.initials: NA
authors.lastname: Banek
authors.affiliation: Department of Chemistry, The George Washington University , Washington, D.C. 20052, United States.
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Wagner
authors.affiliation: Department of Civil and Environmental Engineering, The George Washington University , Washington, D.C. 20052, United States.
authors.forename: Danmeng
authors.initials: D
authors.lastname: Shuai
keywords: carbon nanofibers; carbon nanotubes; electrospinning; nitrite; palladium; water purification