Developing highly active catalysts with the combined advantages of molecular and solid catalysis is considered as the “Holy Grail” in the area of catalysis research. Herein, a phosphorus‐doped porous polymer‐immobilized palladium was successfully developed as an efficient, robust, and recyclable catalyst for the carbonylative Suzuki coupling and alkoxycarbonylation reactions of aryl halides. Rather than just as an immobilizing molecular catalyst, palladium supported on phosphorus‐doped porous organic polymer exhibits even better catalytic performances than that of its analogue homogeneous catalysts in both carbonylation reactions. Moreover, the catalyst can be easily separated and reused for at least 5 times without significant loss in reactivity. Importantly, the catalyst was highly stable under carbonylation reaction conditions, and no palladium nanoparticle was observed even after the 5th reuse.

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In this study, a simple in situ growth method is used to directly synthesize nitrogen−oxygen co-doped carbon-coated porous silica@CNT (CNT@mSiO 2 @NC) composites with opentip and multilayer sandwich tubular structures. As the sacrificial template method is used to etch most of the porous SiO 2 layer, the obtained nanotube has excellent properties. The composite has a high specific capacity of about 300 F g −1 at 2 A g −1 , and the capacity retention rate reaches 91.30% after 10,000 cycles at 40 A g −1 . The reasons for the superior performance can be ascribed to the synergistic effect of a suitable specific area (483.18 m 2 g −1 ), abundant nitrogen/oxygen functional groups (4.70 at. % N and 7.52 at. % O), and a porous silica supporting template. The power density of the assembled symmetric supercapacitor is 760 W kg −1 at the energy density of 16 W h kg −1 . Moreover, the capacity retention rate is 82.70% after 2500 cycles at a current density of 2 A g −1 . The N/O co-doped porous CNT@mSiO 2 @NC electrode material has adjustable porosity and enriched active sites, which has broad application prospects in high-performance supercapacitors.

Herein, dual-mesoporous structure silica (with pore sizes from 2 to 4 nm and from 4 to 16 nm) simultaneously modified with amino and carboxyl groups was successfully synthesized.