太原理工大学学报2019，Vol.50Issue(1)：48-55,8.DOI:10.16355/j.cnki.issn1007-9432tyut.2019.01.008
不同硅铝摩尔比Pt@SOD催化氢与氧直接合成过氧化氢的性能
Pt@SOD with Different n (Si) ∶n (Al) Ratio as Catalyst in the Direct Synthesis of Hydrogen Peroxide
摘要
Abstract
Pt (NH3) 4Cl2 was added as precursor of Pt in the in-situ synthesis of sodalite with different n (Si) ∶n (Al) ratio to prepare different n (Si) ∶n (Al) ratio of samples with good Pt encapsulation.The Pt@SOD samples were characterized by XPS, EDS and so on as having good Pt encapsulating effect, with trace amount of Pt on sodalite surface.The Pt@SOD series was further used in the direct synthesis of hydrogen peroxide (DSHP) from hydrogen and oxygen reaction to prevent the side reaction of H2 O formation, which is due to the good effect of Pt encapsulation and SOD pore size about 0.28 nm to prevent O2 contacting with Pt particles.The H2O2 selectivity of Pt@SOD- (Ⅱ) -Si:Al=3 mixed with n (Si) ∶n (Al) =25 HZSM-5sample at 2 ℃DSHP reaction for 1hwas 44％.关键词
铂/方钠石/封装/直接制备过氧化氢Key words
Pt/sodalites (SOD)/encapsulation/direct synthesis hydrogen peroxide分类
化学化工引用本文复制引用
薛达,宋国强,李福祥,薛建伟,吕志平..不同硅铝摩尔比Pt@SOD催化氢与氧直接合成过氧化氢的性能[J].太原理工大学学报,2019,50(1):48-55,8.基金项目
国家自然科学基金资助项目(50972097) （50972097）
