From Boron Organic Polymers to In‐situ Ultrafine Nano Pd and Pt: Green Synthesis and Application for High Efficiency Hydrogen Evolution

Using in situ reduction strategy by combining organic frameworks and ultrafine Pd and Pt nanoparticles (Pd-NPs and Pt-NPs) to synthesize composites with tunable morphology and high dispersion has attracted extensive attentions in fabrication of composite nanomaterials. Herein, on the new kind of substrate, BOPs@Pd and BOPs@Pt nano materials have been successfully fabricated via in situ reduction of Na2PdCl4 and H2PtCl6 triggered by reducibility of organic boron polymers (BOPs). The final products are obtained by loading Pd-NPs and Pt-NPs with ultra-small size and high dispersion without any tedious chemical modification or additional additives. These materials show high catalytic activity and recyclability in the hydrolysis dehydrogenation of ammonia borane (AB).