A review on functional applications of polyphosphazenes as multipurpose material for lithium-ion batteries

Zhao, Zhengping; Xu, Zhao; Chen, Jiayi; Zhong, Mingqiang; Wang, Jiahao; Chew, Jia Wei

doi:10.1016/j.est.2024.111049

Cited by 1 publication

(2 citation statements)

References 100 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The bands at 1323, 1290, and 1150 cm −1 belonged to the characteristic O=S=O absorption in the sulfonyldiphenol units [34]. The band at 1200 cm −1 corresponded to P=N bonds in the cyclotriphosphazene structure, while the band at 1014 cm −1 was ascribed to the P−O bond [33,38]. The band at 1373 cm −1 might be related to C-O-P groups.…”

Section: Composition and Structurementioning

confidence: 96%

“…Therefore, a variety of supports, such as TiO 2 , ZnO, SiO 2 , carbon materials with different morphologies, graphitic carbon nitride, and organic polymers, have been applied to stabilize the metal nanoparticles [26][27][28][29][30][31][32]. Among them, as a novel organic-inorganic hybrid materials, polyphosphazenes (PZs) have unique -P=N-structural units with alternating P and N atoms in the backbone and a structural multiplicity of side groups, such as organic, organometallic or inorganic units [33]. The polymers have the characteristics of flexible molecular design, high thermal stability and biocompatibility, which makes them suitable candidates for immobilizing metal particles and biomedical carriers.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Constructing Polyphosphazene Microsphere-Supported Pd Nanocatalysts for Efficient Hydrogenation of Quinolines under Mild Conditions

Chen,

Xiao,

Yang

et al. 2024

Catalysts

Self Cite

View full text Add to dashboard Cite

The efficient hydrogenation of N-heterocycles with H2 under mild conditions remains a significant challenge. In this work, polyphosphazene (PZs) microspheres, novel organic–inorganic hybrid materials possessing unique –P=N– structural units and a diverse range of side groups, were used to serve as support for the design of a stable and efficient Pd nanocatalyst (Pd/PZs). The PZs microspheres were prepared by self-assembly induced by precipitation polymerization, and Pd nanoparticles were grown and loaded on the support by a chemical reduction process. Several characterization techniques, including XRD, FTIR, SEM, TEM, XPS, BET and TGA, were used to study the structural features of the nanocomposites. The results revealed that Pd nanoparticles were uniformly distributed on the PZs microspheres, with primary sizes ranging from 4 to 9 nm based on the abundance of functional P/N/O groups in PZs. Remarkably high catalytic activity and stability were observed for the hydrogenation of quinoline compounds using the Pd/PZs nanocatalyst under mild conditions. Rates of 98.9% quinoline conversion and 98.5% 1,2,3,4-tetrahydroquinoline selectivity could be achieved at a low H2 pressure (1.5 bar) and temperature (40 °C). A possible reaction mechanism for quinoline hydrogenation over Pd/PZs was proposed. This work presents an innovative approach utilizing a Pd-based nanocatalyst for highly efficient multifunctional hydrogenation.

show abstract

Section: Composition and Structurementioning

confidence: 96%