Details

Autor(en) / Beteiligte

• Le, Hai Viet
• Nguyen, Quyen Truc Thi
• Co, Thien Thanh
• Nguyen, Phuong Kieu Thi
• Nguyen, Hoang Thai

Titel

A Composite Based on Pd Nanoparticles Incorporated into a Zirconium-Based Metal–Organic Frameworks Zr–AzoBDC and Its Electrocatalytic Activity for Hydrogen Evolution Reaction

Ist Teil von

• Journal of electronic materials, 2018-11, Vol.47 (11), p.6918-6922

Ort / Verlag

New York: Springer US

Erscheinungsjahr

2018

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• This work presents the results of the synthesis and characterization of a composite material from a zirconium-based metal–organic framework (Zr–AzoBDC) and Pd nanoparticles. Zr–AzoBDC was synthesized from Zr(IV) salt and azobenzene-4,4′-dicarboxylic acid (AzoBDC) linker by a solvent–thermal method. The Pd@Zr–AzoBDC composite was prepared via two stages (1) absorption of Pd ions into the Zr–AzoBDC, and (2) reduction of the Pd ions by NaBH 4 . The structure of Zr–AzoBDC and composite were studied by powder x-ray diffraction measurements. The morphology and chemical composition of the composite were analyzed via the FESEM/energy dispersive x-ray method. Electro-catalytic properties of the Zr–AzoBDC support and Pd@Zr–AzoBDC composite were examined by the cyclic voltammetry method in 0.5 M Na 2 SO 4 aqueous solution. The results showed that the amount of Pd in the as-prepared composite was ca. 4.5%. The Pd@Zr–AzoBDC composite was found to be stable in water and showed very good catalytic activity for the hydrogen evolution reaction. The overpotential requirement to achieve a catalytic current density of 1.0 mA cm 2 and 10 mA cm −2 was ca. 300 mV and 800 mV versus RHE, respectively.