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Articles in press
건습식 하이브리드 가수분해를 이용한 수소화붕소나트륨과 옥살산 이수화물 혼합물의 탈수소화 반응 연구
Dehydrogenation Reaction of Sodium Borohydride and Oxalic Acid Dihydrate Compound Using Dry-Wet Hybrid Hydrolysis
Jeewoo Kim1
Hosun Aum1
Jihoon Jung1†
1Kyonggi University Department of Chemical Engineering, 1Kyonggi Universtiy Department of Chemical Engineering
In Press, Journal Pre-proof, Available online 1 February 2025
Abstract
수소는 높은 에너지밀도를 가지는 청정에너지원으로써 다양한 연료전지의 연료로 사용된다. 본 연구에서는 수소 저장물질인 수소화붕소나트륨(SBH)과 옥살산 이수화물(OA·2H2O)을 이용하여 물 없이 수소를 추출하는 건식 가수분해 반응을 진행시킨 후 미반응된 SBH와 소량의 물을 이용한 습식 가수분해 반응을 이용하여 추가로 수소를 추출하였다. 이와 같은 SBH와 OA·2H2O을 이용한 건습식 하이브리드 가수분해 반응을 이용하여 최고 수율 6.5 wt%의 수소를 저온에서 빠르게 발생시킬 수 있었으며, 이는 기존 건식 가수분해 반응의 최대 수율 3.8 wt%에 비해 42 % 만큼 증가한 결과이다.
Hydrogen, with its high energy density, is used as a clean energy source in various fuel cells. In this study, we conducted a dry hydrolysis reaction using sodium borohydride (SBH), a hydrogen storage material, and oxalic acid dihydrate (OA·2H2O) to extract hydrogen without water. Following this, we performed a wet hydrolysis reaction using unreacted SBH and a small amount of water to further extract hydrogen. By employing this dry-wet hybrid hydrolysis reaction with SBH and OA·2H2O, we were able to rapidly generate hydrogen at a high yield of 6.5 wt% at low temperatures. This represents an increase of 42 % compared to the maximum yield of 3.8 wt% from conventional dry hydrolysis reactions.
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