Microporous Organic Polymers: A Synthetic Platform for Engineering Heterogeneous Carbocatalysts

Abstract

The conceptual, bottom‐up design of functional carbon materials from microporous organic polymers was investigated. Owing to their structural rigidity and synthetic flexibility, the porous polymers streamlined the thermal carbonization process while excluding the need for exogenous additives or extra synthesis procedures and allowed for simultaneous elemental engineering of the resultant carbonaceous materials. As designed, heteroatoms such as nitrogen and sulfur could be uniformly incorporated into the carbon matrices from the microporous polymers during thermal carbonization with a concomitant change in the macroscopic properties of the materials. In particular, doping with sulfur atoms could provide reactive sites, thereby conferring superior catalytic performance to the carbon materials. This study demonstrates expansion of the capability of microporous polymers as a functional carbon source and advances the synthetic concept for carbonaceous materials.

Recent Progress on Molecular Photoacoustic Imaging with Carbon-Based Nanocomposites

“…Therefore, on the one hand, the agent materials can be incorporated into biocompatible polymers such as hydrogels or bio-based thermosets, to enhance sensing ability as a signal transducer for PA signals under physiological conditions [123][124][125][126][127][128][129][130][131][132]. On the other hand, they would provide spatiotemporal control of stimuli-responsive materials that exhibit auto-inductive or reversible responses [133][134][135][136][137][138] or would be used to analyze interior structures when embedded in complex materials containing biomimetic or hierarchical structures [104,117,[139][140][141]. Furthermore, the functional carbon-based materials would open up the possibilities for the development of theragnostic biomedical devices, e.g., smart vascular scaffolds or self-powered healthcare systems that can sensitively monitor diverse bio-signals on the basis of PA signals and provide an early, relevant treatment when needed.…”