Xiu-Yun Yang

Synthesis of a Hierarchical Three‐Component Nanocomposite Structure System with Enhanced Electrocatalytic and Photoelectrical Properties

Effective control over the morphology and size of Pd/Pt nanoparticles is currently of immense interest because their electronic, optical, and catalytic properties are superior to pure platinum nanoparticles. However, control over the nanoparticle shape is still challenging. Therefore, a novel design and synthetic route needs to be developed to obtain a high-performance catalyst. Herein, a hierarchical three-component nanocomposite structure system (HTNSS) composed of graphene, TiO(2), and Pd@Pt core-shell nanoparticles was designed and synthesized by a sequential strategy that focuses on constructing the monolithic structure rather than limited single-component counterparts. The resulting composites were characterized by various techniques, which showed that the Pd@Pt core-shell nanoparticles were preferentially deposited on the peripheral interface of the graphene and TiO(2) nanoparticles. The photoelectrical and catalytic performances were obviously improved relative to the commercially available E-TEK Pt/C owing to their synergistic effect.

[N'-(3-Meth-oxy-2-oxidobenzyl-idene-κO)benzohydrazidato-κN',O]tris-(pyridine-κN)cobalt(III) perchlorate.

In the mononuclear title compound, [CoIII(C15H12N2O3)(C5H5N)3]ClO4, the CoIII ion is coordinated by three pyridine molecules and one N′-(3-methoxy-2-oxidobenzylidene)benzohydrazidate Schiff base ligand in an O,N,O′-tridentate manner. The CoIII ion adopts a distorted CoN4O2 octahedral coordination environment.

(2-Oxido-1-naphthaldehyde benzoyl­hydrazonato-κ3 N,N′,O)pyridine­copper(II)

In the mononuclear title compound, [CuII(C18H12N2O2)(C5H5N)], the CuII ion is coordinated by two O atoms and one N atom from the dianionic tridentate L 2− ligand (H2 L is 2-hydroxy-1-naphthaldehyde benzoylhydrazide) and one N atom from a pyridine molecule in a CuN2O2 distorted square-planar coordination environment.