Polyacrylonitrile (PAN) beads supported Pd nanoparticles (NPs) exhibit excellent catalytic performance for aqueous-phase formic acid (FA) dehydrogenation. Doping suitable content of Co or Fe species could further enhance the catalytic activity of the PAN supported Pd-based NPs catalysts. Abundant CN groups existed on the surface of PAN beads are beneficial to immobilizing Pd NPs, and may also act as proton scavengers to provide a suitable basic environment for activating FA molecular. Notably, the composition-optimized catalysts can also efficiently reduce the low concentration of organic dyes (methylene blue and rhodamine B) using FA as hydrogen source under ambient conditions.

负载Pd纳米颗粒（NPs）的聚丙烯腈（PAN）珠对水相甲酸（FA）脱氢显示出优异的催化性能。掺杂适当含量的Co或Fe可以进一步增强PAN负载的Pd基NPs催化剂的催化活性。PAN珠表面上存在的大量CN基团有利于固定Pd NP，并且还可以充当质子清除剂，为激活FA分子提供合适的基础环境。值得注意的是，在环境条件下，使用FA作为氢源，经过成分优化的催化剂还可以有效降低低浓度的有机染料（亚甲基蓝和若丹明B）。