Details

Autor(en) / Beteiligte

• Xu, Wenjuan
• Feng, Yanru
• Sun, Zejun
• Guo, Liutao
• Li, Chengrui
• Li, Hong
• Wang, Yiming
• Sun, Hong-bin

Titel

P-induced bottom-up growth of Fe-doped Ni12P5 nanorod arrays for urea oxidation reaction

Ist Teil von

• Journal of colloid and interface science, 2023-03, Vol.633, p.746-753

Ort / Verlag

Elsevier Inc

Erscheinungsjahr

2023

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• In this paper, a porous nitrogen-doped carbon was firstly covered on nickel foam, which was followed by high-temperature vapor deposition with DPPF to obtain Fe-doped Ni12P5 nanorod arrays for urea oxidation reaction. The characterizations revealed that the DPPF-induced growth of nickel phosphide has the structure of straight nanorods with a length of up to tens of micrometers, and the composition can be identified as Fe-doped Ni12P5. [Display omitted] Synthesis of regular morphology catalysts with self-growing substrates is one of the effective methods to solve the problem of easy shedding of heterogeneous catalysts. In this study, Fe-doped Ni12P5 nanorods were prepared by depositing 1,1′ -bis (diphenylphosphine) ferrocene (DPPF) on N-doped C/NF. The bottom-up growth of the nanorod is ascribed to the preferential adsorption of DPPF with a P site to NF that is surface-doped with the solid-solving C, and the length of nanorods can reach tens of microns and has good robustness. The N-doped carbon-constrained rod-shaped Fe-doped Ni12P5 catalyst (Fe-Ni12P5/NdC/NF-800) that grows on NF has excellent catalytic performance for the urea oxidation reaction. In addition, the current density can be maintained as high as 100 mA cm−2 and the current attenuation is weak for 12 h, and the rod shape remains good. This work provides a new idea for synthesizing self-growing catalysts with regular morphology to improve the performance of heterogeneous catalysts.