Characterizing Electro-Oxidation of Biomass Derivatives via In Situ Measurements / Joseph Christopher Hasse.
As the renewable energy sector becomes more widespread, primary, and secondary storage solutions for electrical energy are needed due to the intermittent nature of these energy sources. Chemical transformations via electrochemistry are interesting secondary storage solutions that can be skewed to be...
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| Format: | Thesis Electronic eBook |
| Language: | English |
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Ann Arbor :
ProQuest Dissertations & Theses,
2023.
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MARC
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| 100 | 1 | |a Hasse, Joseph Christopher, |e author. |0 (orcid)0000-0002-0580-1355 | |
| 245 | 1 | 0 | |a Characterizing Electro-Oxidation of Biomass Derivatives via In Situ Measurements / |c Joseph Christopher Hasse. |
| 264 | 1 | |a Ann Arbor : |b ProQuest Dissertations & Theses, |c 2023. | |
| 300 | |a 1 electronic resource (174 pages) | ||
| 336 | |a text |b txt |2 rdacontent | ||
| 337 | |a computer |b c |2 rdamedia | ||
| 338 | |a online resource |b cr |2 rdacarrier | ||
| 506 | |a This item is not available from ProQuest Dissertations & Theses. | ||
| 590 | |a School code: 0051 | ||
| 500 | |a Source: Dissertations Abstracts International, Volume: 85-06, Section: B. | ||
| 500 | |a Advisors: Holewinski, Adam Committee members: Medlin, Will; Smith, Wilson; Cha, Jennifer; Luca, Oana. | ||
| 502 | |b Ph.D. |c University of Colorado at Boulder |d 2023. | ||
| 520 | |a As the renewable energy sector becomes more widespread, primary, and secondary storage solutions for electrical energy are needed due to the intermittent nature of these energy sources. Chemical transformations via electrochemistry are interesting secondary storage solutions that can be skewed to be even more environmentally friendly with simultaneous production towards renewable hydrogen. Transforming renewable biomass into fine fuels and chemicals provides the opportunity to utilize renewable electricity, while creating materials for industries that are hard to decarbonize (e.g. aviation and plastics). Additional opportunities exist specifically for oxidative chemistries in the form of replacing the sluggish oxygen evolution reaction (OER) and producing hydrogen cathodically. Furanics, such as furfural and 5-hydroxymethyl furfural (HMF), offer an array of fine chemical, oxidative target molecules, most notably furan dicarboxylic acid (FDCA), a precursor to polyethylene furoate (PEF), a green replacement for polyethylene terephthalate (PET). Production methods of furanics often result in acidic aqueous streams, necessitating production methods capable of tolerating these conditions. Hence, utilizing electrochemistry, inherently capable of tolerating these conditions, we studied the electrooxidation of furfural and HMF.Utilizing in situ vibrational spectroscopy techniques to study the oxidation of furfural, we've identified low potential carbon monoxide poisoning on platinum electrodes. At high potentials we observed that surface bound carboxylates have slower turnovers and tend to accumulate on the surface. Additionally, we observed a surface route to maleic acid on the surface through a converging pathway of the oxidized products. We then explored a variety of reaction conditions, including pH, feed stock concentration and reaction time, in high conversion electrolysis on platinum electrodesCopper electrodes, at ultra-low potential are capable of electrochemical oxidative dehydrogenation (EOD) of furfural and HMF and other aldehydes alongside anodic H2 production. Utilizing in situ vibration techniques, we again identified carbon monoxide poisoning, as well as changes in water coverage with increasing potential for FF. This phenomena, did not occur in HMF and may explain the higher activity for FF in this reaction.In summary, this work sought to understand the fundamentals of furanic oxidation on model electrodes through use of vibrational spectroscopy and investigative electrochemical techniques. | ||
| 546 | |a English | ||
| 650 | 0 | |a Chemical engineering. |0 http://id.loc.gov/authorities/subjects/sh85022900 | |
| 650 | 0 | |a Chemistry, Physical and theoretical. |0 http://id.loc.gov/authorities/subjects/sh85023027 | |
| 650 | 4 | |a Energy. | |
| 650 | 0 | |a Bioengineering. |0 http://id.loc.gov/authorities/subjects/sh85014134 | |
| 653 | |a ATR-SEIRAS | ||
| 653 | |a Biomass | ||
| 653 | |a Electrical energy | ||
| 653 | |a Electrooxidation | ||
| 653 | |a Furfural | ||
| 655 | 7 | |a Theses |x CU Boulder |x Chemical and Biological Engineering. |2 local | |
| 700 | 1 | |a Holewinski, Adam, |e degree supervisor. | |
| 773 | 0 | |t Dissertations Abstracts International |g 85-06B. | |
| 791 | |a Ph.D. | ||
| 792 | |a 2023 | ||
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| 952 | f | f | |p Can circulate |a University of Colorado Boulder |b Online |c Online |d Online |i web |