Show simple item record

dc.contributor.advisorHuang, Kuo-Wei
dc.contributor.authorYuan, Ding-Jier
dc.date.accessioned2019-04-04T14:42:01Z
dc.date.available2021-04-01T00:00:00Z
dc.date.issued2019-02
dc.identifier.citationYuan, D.-J. (2019). Development of Reusable heterogeneous Catalysts for Sustainable formic acid production and methanol utilization. KAUST Research Repository. https://doi.org/10.25781/KAUST-68241
dc.identifier.doi10.25781/KAUST-68241
dc.identifier.urihttp://hdl.handle.net/10754/631817
dc.description.abstractThe green production of formic acid and utilization of methanol over heterogeneous catalysis system were investigated in this study. The heterogeneous catalysts are widely used in the chemical industry. They offer high stability and reusability which can enhance the production ability and lower the production cost, it can be considered as the sustainable energy solution for the future. In this work, we demonstrated several different heterogeneous catalysts for sustainable formic acid production and methanol utilization, including the heteropoly acid supported mesoporous silica catalysts and multi-function mixed metal oxide catalysts. Detailed characterizations of the final products were carried out by N2 adsorption and desorption, XRD, HR-TEM, SEM, ICP-OES, XANES, NH3- TPD, Raman spectroscopy, and FTIR to identify the chemical properties and physical properties of the catalysts. We obtained 60 % glycerol conversion and 30 % formic acid selectivity with at least 3 rounds of usages in batch system over PV1Mo/SBA-15-p-DS catalyst. Moreover, the continuous methyl formate production with significantly high formation rate (16.7) has been achieved via our CuMgO-based catalysts, and the best Cu5MgO5 catalyst gives more than 80 % methanol conversion with constant selectivity to methyl formate even after 4 catalytic test (more than 200 h), revealing their potential for industrialization. For the methanol utilization reaction, the methanol homocoupling to form dimethoxymethane (DMM) has been investigated. The redox and acidic properties of catalysts both play a critical role in this reaction and the related to different product. The supported V2O5 catalyst achieves the best catalytic performance (62.1 % conversion and 85.6 % DMM selectivity) with a Ce/Al specific ratio of 1. This research not only provided the efficient catalysts for numerous application with high activity, but also discovered the relation between the catalytic performance and the nature of the materials. These findings might further help the researcher to solve the global environmental and energy issues in the near future.
dc.language.isoen
dc.subjectHeterogenous Catalysis, Formic Acid, Methyl formate, Methanol, Dimethoxymethane
dc.titleDevelopment of Reusable heterogeneous Catalysts for Sustainable formic acid production and methanol utilization
dc.typeDissertation
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.rights.embargodate2021-04-01
thesis.degree.grantorKing Abdullah University of Science and Technology
dc.contributor.committeememberHan, Yu
dc.contributor.committeememberLai, Zhiping
dc.contributor.committeememberYang, Arnold Chang-Mou
thesis.degree.disciplineChemical Science
thesis.degree.nameDoctor of Philosophy
dc.rights.accessrightsAt the time of archiving, the student author of this dissertation opted to temporarily restrict access to it. The full text of this dissertation became available to the public after the expiration of the embargo on 2021-04-01.
refterms.dateFOA2019-04-04T14:42:02Z
kaust.request.doiyes


Files in this item

Thumbnail
Name:
Thesis_V6_20190318.docx.pdf
Size:
4.451Mb
Format:
PDF
Description:
Ding-Jier Yuan - Final Paper Submission

This item appears in the following Collection(s)

Show simple item record