Introduction
Bimonthly, started in 1957
Administrator
Shanxi Provincial Education Department
Sponsor
Taiyuan University of Technology
Publisher
Ed. Office of Journal of TYUT
Editor-in-Chief
SUN Hongbin
ISSN: 1007-9432
CN: 14-1220/N
Administrator
Shanxi Provincial Education Department
Sponsor
Taiyuan University of Technology
Publisher
Ed. Office of Journal of TYUT
Editor-in-Chief
SUN Hongbin
ISSN: 1007-9432
CN: 14-1220/N
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Pt@SOD with Different n(Si)∶n(Al) Ratio as Catalyst in the Direct Synthesis of Hydrogen Peroxide
DOI:
10.16355/j.cnki.issn1007-9432tyut.2019.01.008
Received:
Accepted:
| Corresponding author | Institute | |
| LI Fuxiang | College of Chemistry and Chemical Engineering,Taiyuan University of Technology |
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 H 2O 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-5 sample at 2℃ DSHP reaction for 1 h was 44%.
Keywords:
Pt;sodalites(SOD);encapsulation;direct synthesis hydrogen peroxide