title: Urchin-Like Amorphous Ni2B Alloys: Efficient Antibacterial Materials and Catalysts for Hydrous Hydrazine Decomposition to Produce H2.
abstract: Urchin-like amorphous Ni2B alloys were successfully prepared for the first time from a mixture of Ni(NH3)6(2+) and polyvinyl alcohol (PVA) via a solution plasma process (SPP). The as-synthesized samples were characterized by X-ray powder diffraction (XRD), inductively coupled plasma atomic emission spectrometry (ICP-AES) X-ray photoelectron spectroscopy (XPS), scanning transmission electron microscopy (STEM), selected-area electron diffraction patterns (SAED) and nitrogen adsorption-desorption isotherms. In the performance test, the obtained Ni-B urchins showed great antibacterial activities, comparable with those of amikacin and kanamycin, especially towards Pseudomonas aeruginosa (P. aeruginosa). Meanwhile, the magnetic properties of Ni-B urchins are enhanced in comparison with those of conventional Ni-B. During hydrous hydrazine (N2H4) decomposition, the dehydrogenation performance of Ni-B urchins is superior to those of Raney Ni and conventional Ni-B. The enhanced catalytic performance of Ni-B urchins is attributed to their high surface area of active species nickel and the enhanced intrinsic activity resulting from their unique structure.
authors.forename: Miao
authors.initials: M
authors.lastname: Deng
authors.forename: Shi Yan
authors.initials: SY
authors.lastname: Fu
authors.forename: Fan
authors.initials: F
authors.lastname: Yang
authors.forename: Ping
authors.initials: P
authors.lastname: Wu
authors.forename: Dong Ge
authors.initials: DG
authors.lastname: Tong
mesh_terms: D000497:Alloys; D000900:Anti-Bacterial Agents / Q000737:chemistry*; D001419:Bacteria / Q000187:drug effects; D001895:Boron / Q000737:chemistry*; D002384:Catalysis; D006834:Hydrazines / Q000737:chemistry*; D006859:Hydrogen / Q000737:chemistry*; D008826:Microbial Sensitivity Tests; D017348:Microscopy, Electron, Scanning Transmission; D009532:Nickel / Q000737:chemistry*; D033362:Powder Diffraction
chemical_list: D000497:Alloys; D000900:Anti-Bacterial Agents; D006834:Hydrazines; C029424:hydrazine; D009532:Nickel; D006859:Hydrogen; D001895:Boron