Optimized Synthesis of Nitrogen and Phosphorus Dual-Doped Coal-Based Carbon Fiber Supported Pd Catalyst with Enhanced Activities for Formic Acid Electrooxidation

Abstract

Development of a Pd-based catalyst with highly active and durable properties for formic acid oxidation reaction at the anode remains an important matter of interest in the research community. Herein, we have designed novel coal-based carbon fibers (Coal-CFs) with dicyandiamide (DCD) as nitrogen (N) source, triphenylphosphine (TPP) as phosphorus (P) source dual-doped to support Pd catalysts (Pd/NP-Coal-CFs­(DCD/​TPP)), which exhibit superior catalytic performance toward formic acid oxidation reaction. Mass activity of formic acid oxidation of Pd/NP-Coal-CFs­(DCD/​TPP) catalyst is 536.6 mA·mg–1 Pd, which is 2.5 times higher than that of Pd/Coal-CFs catalyst. The higher specific surface areas, exclusive electron transport path, and the high synergistic interaction of N and P are the favorable phenomena for catalytic performance. The addition of coal not only increases the abundant defects sites but also makes the utilization of coal with high added value. This N and P dual-doped catalyst inspires an idea for promoting applications in practical fuel cells.

Ruthenium on phosphorous-modified alumina as an effective and stable catalyst for catalytic transfer hydrogenation of furfural

“…phosphates, phosphides) form a broad class of promoters, which are experiencing a growing interest in the eld of heterogeneous catalysis for biomass valorization. [34][35][36][37][38][39][40][41][42][43][44][45] Besides acting as ligands for the stabilization of metal species, phosphorous introduces Brønsted acid sites on the support surface and promotes electron transfer phenomena resulting in enhanced activity. 36,40 In this work, we investigate the effect of the modication of alumina with phosphorous on the catalytic performance of Ru towards catalytic transfer hydrogenation of furfural in the presence of isopropanol as hydrogen donor.…”

Dicyanamide Anion-Based Ionic Liquid-Functionalized Graphene-Supported Pt Catalysts for Boosting Methanol Electrooxidation

“…The ECSA values are calculated by integrating the charge exchange of the peak area of the hydrogen desorption curve based on the equation ECSA = Q H /(0.21 L Pt ). 42 In general, the higher the ECSA value of the catalyst, the more the electrocatalytic activity sites. 28 Therefore, the ECSA values of Pt-based catalysts functionalized with imidazolium-based ILs are calculated (Figure 5a and Table S3).…”

“…ECSA tests can reflect the electrocatalytic activity site information of Pt-based catalysts. The ECSA values are calculated by integrating the charge exchange of the peak area of the hydrogen desorption curve based on the equation ECSA = Q H /(0.21 L Pt ) . In general, the higher the ECSA value of the catalyst, the more the electrocatalytic activity sites .…”

ZIF-8@ZIF-67-Derived Co Embedded into Nitrogen-Doped Carbon Nanotube Hollow Porous Carbon Supported Pt as an Efficient Electrocatalyst for Methanol Oxidation

“…In our previous reports, this support played a significant part in the performance of catalysts, which is essential to enhance the mass and charge transfer of catalysts and improve the dispersion of metal particles [11][12][13]. The carbon-based catalysts with metalorganic frameworks (MOFs) consisting of metal nodes and organic linkers are a good strategy among many improved methods [14].…”