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Master Thesis Final CongcongXue.pdf (2.34 MB)

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Electrocatalytic and Photocatalytic CO2 Reduction by Ru-Re Bimetallic Complexes

Xue, Congcong
http://rave.ohiolink.edu/etdc/view?acc_num=osu1462205030

Abstract Details

2016, Master of Science, Ohio State University, Chemistry.
Rhenium polypyridyl complexes have long been used as CO2 reduction catalysts both electrochemically and photochemically. The Ruthenium-Rhenium bimetallic complexes [(biq)2Ru(µ-dpp)Re(CO)3Cl](PF6)2, [(biq)2Ru(µ-dpq)Re(CO)3Cl](PF6)2 and [(biq)2Ru(µ-dpb)Re(CO)3Cl](PF6)2 (biq= 2,2’- biquinoline, dpp=2,3-bis(2-pyridyl)pyrazine, dpq= 2,3-bis(2-pyridyl)quinoxaline, dpb = 2,3-bis(2-pyridyl)benzoquinoxaline) were synthesized and studied as potential electrocatalytic and photocatalytic CO2 reduction agents. The catalytic efficiency of the Ru-Re bimetallic complexes is compared to that of each Ru and Re monometallic compound. A total of 9 compounds were investigated. In cyclic voltammograms of the Re monometallic and Ru-Re bimetallic complexes, current increase was observed under a CO2 atmosphere when compared to measurements conducted under N2. The only CO2 reduction product detected was CO following bulk electrolysis on the complexes using with gas chromatography and 1H and 13C NMR spectroscopy. Photochemically, Re monometallic compounds were shown to reduce CO2 with the assistance of Ru(bpy)32+ as a photosensitizer. However, Ru-Re bimetallic compounds failed to produce any CO. The possible reasons for the difference in reactivity are discussed.
Claudia Turro (Advisor)
Hannah Shafaat (Committee Member)
49 p.
Chemistry
Electrocatalysis, CO2 Reduction, Phtocatalysis, bimetallic compound

Recommended Citations

Citations

  • Xue, C. (2016). Electrocatalytic and Photocatalytic CO2 Reduction by Ru-Re Bimetallic Complexes [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1462205030

    APA Style (7th edition)

  • Xue, Congcong. Electrocatalytic and Photocatalytic CO2 Reduction by Ru-Re Bimetallic Complexes. 2016. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1462205030.

    MLA Style (8th edition)

  • Xue, Congcong. "Electrocatalytic and Photocatalytic CO2 Reduction by Ru-Re Bimetallic Complexes." Master's thesis, Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1462205030

    Chicago Manual of Style (17th edition)

osu1462205030
939
© 2016, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.