Untitled

Construction of Palladium Nanoparticles Modified Covalent Triazine Frameworks towards Highly-Efficient Dehydrogenation of Dipentene for p-Cymene Production

“…The catalytic conversion of renewable biomass terpenes into value-added chemicals has long been a research area of considerable importance for sustainable development [1][2][3]. Industrial dipentene is mainly composed of various monoterpenes, including isomers of limonene, terpinenes, terpinolene, and other menthadienes [4].…”

“…However, most CTF materials have the problem of high exciton binding energy and weak electron transport capacity [33,34]. Nitrogen in CTF can improve the catalytic reaction performance of supported palladium nanoparticles in the following aspects: (1) The nitrogen sites (particularly sp 2 N-C=N nitrogen in the triazine unit) can provide anchoring sites for metals, so that the metal nanoparticles can be evenly dispersed and anchored on the support, and the size of the metal nanoparticles can be finely controlled; (2) The negative electrical properties presented by the nitrogen site can increase the electron density of the metal particles so that the metal can maintain a high catalytic performance; (3) nitrogen sites could remain the metal in metallic state during air contact, and metal on nitrogen sites may promote absorption of reactants or desorption of products [35][36][37][38]. Therefore, palladium nanoparticles loaded on CTF could serve as a potential candidate for catalyzing dehydrogenation of dipentene to p-cymene with good catalytic performance and high stability.…”