Monolithic silicon carbide with interconnected and hierarchical pores fabricated by reaction‐induced phase separation

Hierarchically porous silicon carbide (SiC) monoliths were fabricated based on polycarbosilane ( PCS ), divinyl benzene ( DVB ), and decalin, by a sequence of procedures including catalyst‐free hydrosilylation reaction‐induced phase separation, ambient‐pressure drying, calcination, and HF etching. The influences of ratios of each component on the phase separation were systematically studied. It was found that isotactic polypropylene added as a...