화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2019년 가을 (10/23 ~ 10/25, 대전컨벤션센터)
권호 25권 2호, p.1979
발표분야 촉매 및 반응공학 (Catalysis and Reaction Engineering)
제목 Direct CO2 hydrogenation to formic acid using carbon nitride in neutral conditions
초록 Formic acid is a molecule that can be synthesized from CO2 hydrogenation and is considered as a stable and safe H2 storage medium with a large volumetric hydrogen capacity. Moreover HCOOH is easily decomposed to H2 and CO2 on Pd catalysts under mild conditions without CO evolution.

Graphitic carbon nitride is 2 dimension structure. g-C3N4 is applied as a support of the Pd catalyst for direct HCOOH synthesis by CO2 hydrogenation under neutral conditions. The high CO2 affinity of g-C3N4 is responsible for the enhanced catalytic acitivity and stability relative to the inert support such as a carbon nanotube.

The total Pd time yield of 1.4Pd/g-C3N4 is 12 times higher than that of Pd/CNT with a similar Pd particle size. Notable, no HCOOH species was detected in the reaction solution when bare g-C3N4 was used without Pd. Since H2 is activated on the Pd surface, HCOOH formation reaction should take place at the interface with g-C3N4, where CO2 activation occurs.

 
저자 이주형, 이재성
소속 울산과학기술원
키워드 촉매
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