دورية أكاديمية
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Light-Driven Catalytic Upgrading of Butanol in a Biohybrid Photoelectrochemical System.

التفاصيل البيبلوغرافية
العنوان: Light-Driven Catalytic Upgrading of Butanol in a Biohybrid Photoelectrochemical System.
المؤلفون: Harris AW; Department of Chemical and Biological Engineering, University of Colorado Boulder, 3415 Colorado Avenue, Boulder, Colorado 80303, United States., Yehezkeli O; Department of Chemical and Biological Engineering, University of Colorado Boulder, 3415 Colorado Avenue, Boulder, Colorado 80303, United States., Hafenstine GR; Department of Chemical and Biological Engineering, University of Colorado Boulder, 3415 Colorado Avenue, Boulder, Colorado 80303, United States., Goodwin AP; Department of Chemical and Biological Engineering, University of Colorado Boulder, 3415 Colorado Avenue, Boulder, Colorado 80303, United States.; Materials Science and Engineering Program, University of Colorado Boulder, 3415 Colorado Avenue, Boulder, Colorado 80303, United States., Cha JN; Department of Chemical and Biological Engineering, University of Colorado Boulder, 3415 Colorado Avenue, Boulder, Colorado 80303, United States.; Materials Science and Engineering Program, University of Colorado Boulder, 3415 Colorado Avenue, Boulder, Colorado 80303, United States.
المصدر: ACS sustainable chemistry & engineering [ACS Sustain Chem Eng] 2017; Vol. 5 (9), pp. 8199-8204. Date of Electronic Publication: 2017 Jul 18.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: American Chemical Society Country of Publication: United States NLM ID: 101608852 Publication Model: Print-Electronic Cited Medium: Print ISSN: 2168-0485 (Print) Linking ISSN: 21680485 NLM ISO Abbreviation: ACS Sustain Chem Eng Subsets: PubMed not MEDLINE
أسماء مطبوعة: Original Publication: Washington, DC : American Chemical Society, c2013-
مستخلص: This paper reports the design and preparation of a biohybrid photoelectrochemical cell (PEC) that can drive the tandem enzymatic oxidation and aldol condensation of n -butanol (BuOH) to C 8 2-ethylhexenal (2-EH). In this work, BuOH was first oxidized to n -butyraldehyde (BA) by the alcohol oxidase enzyme (AOx), concurrently generating hydrogen peroxide (H 2 O 2 ). To preserve enzyme activity and increase kinetics nearly 2-fold, the H 2 O 2 was removed by oxidation at a bismuth vanadate (BiVO 4 ) photoanode. Organocatalyzed aldol condensation of C 4 BA to C 8 2-EH improved the overall BuOH conversion to 6.2 ± 0.1% in a biased PEC after 16 h. A purely light-driven, unbiased PEC showed 3.1 ± 0.1% BuOH conversion, or ~50% of that obtained from the biased system. Replacing AOx with the enzyme alcohol dehydrogenase (ADH), which requires the diffusional nicotinamide adenine dinucleotide cofactor (NAD + /NADH), resulted in only 0.2% BuOH conversion due to NAD + dimerization at the photoanode. Lastly, the application of more positive biases with the biohybrid AOx PEC led to measurable production of H 2 at the cathode, but at the cost of lower BA and 2-EH yields due to both product overoxidation and decreased enzyme activity.
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معلومات مُعتمدة: DP2 EB020401 United States EB NIBIB NIH HHS
فهرسة مساهمة: Keywords: Alcohol oxidase; Aldol condensation; Bismuth vanadate; Green chemistry
تواريخ الأحداث: Date Created: 20201102 Latest Revision: 20240330
رمز التحديث: 20240330
مُعرف محوري في PubMed: PMC7597823
DOI: 10.1021/acssuschemeng.7b01849
PMID: 33133786
قاعدة البيانات: MEDLINE
الوصف
تدمد:2168-0485
DOI:10.1021/acssuschemeng.7b01849