Cyanogel-derived N-doped C nanosheets immobilizing Pd-P nanoparticles: One-pot synthesis and enhanced hydrogenation catalytic performance
Zhang, H (Zhang, Hao)[ 1 ] ; Yan, XH (Yan, Xiaohong)[ 1 ] ; Huang, YD (Huang, Yundi)[ 1 ] ; Zhang, MR (Zhang, Mengru)[ 1 ] ; Tang, YW (Tang, Yawen)[ 1 ] ; Sun, DM (Sun, Dongmei)[ 1 ] ; Xu, L (Xu, Lin)[ 1 ]*; Wei, SH (Wei, Shaohua)[ 1 ]*
[ 1 ] Nanjing Normal Univ, Sch Chem & Mat Sci, Jiangsu Collaborat Innovat Ctr Biomed Funct Mat, Jiangsu Key Lab New Power Batteries, Nanjing 210023, Jiangsu, Peoples R China
APPLIED SURFACE SCIENCE, Feb.2017, 396, 812-820
For Pd-based nanocatalysts, stabilization of Pd nanoparticles on carbon support could not only effectively avoid particle aggregation and maintain catalytic stability during catalytic processes, but also facilitate enhancing the catalytic activity due to the synergy between Pd nanoparticles and carbon support. Furthermore, the incorporation of non-metal of phosphorus (P) into Pd could effectively modulate the electronic structure of Pd and thus help to boost the catalytic properties. However, one-pot synthesis of such nanohybrids remains a great challenge due to the distinct physiochemical properties of Pd, P and C components. Herein, we demonstrate a one-pot and scalable synthesis of highly dispersed PdP alloy nanoparticle-immobilized on N-doped graphitic carbon nanosheets (abbreviated as Pd-P@N-C nanosheets) by using inorganic-organic hybrid cyanogel as a reaction precursor. In virtue of both compositional and structural advantages, the as-synthesized Pd-P@N-C nanosheets manifest a superior catalytic activity and stability toward the hydrogenation of 4-nitrophenol (4-NP). We believe that the present work will provide a feasible and versatile strategy for the development of efficient catalysts for environmental remediation and can also be extendable to other carbon-based nanohybrids with desirable functionalities.