title: Cellulosic carbon fibers with branching carbon nanotubes for enhanced electrochemical activities for bioprocessing applications.
abstract: Renewable biobased carbon fibers are promising materials for large-scale electrochemical applications including chemical processing, energy storage, and biofuel cells. Their performance is, however, often limited by low activity. Herein we report that branching carbon nanotubes can enhance the activity of carbonized cellulosic fibers, such that the oxidation potential of NAD(H) was reduced to 0.55 V from 0.9 V when applied for bioprocessing. Coordinating with enzyme catalysts, such hierarchical carbon materials effectively facilitated the biotransformation of glycerol, with the total turnover number of NAD(H) over 3500 within 5 h of reaction.
authors.affiliation: Department of Bioproducts and Biosystems Engineering and‡Biotechnology Institute, University of Minnesota , Saint Paul, Minnesota 55108, United States.
authors.forename: Xueyan
authors.initials: X
authors.lastname: Zhao
authors.forename: Xin
authors.initials: X
authors.lastname: Lu
authors.forename: William Tai Yin
authors.initials: WT
authors.lastname: Tze
authors.forename: Jungbae
authors.initials: J
authors.lastname: Kim
authors.forename: Ping
authors.initials: P
authors.lastname: Wang
mesh_terms: D001674:Bioelectric Energy Sources; D002244:Carbon / Q000737:chemistry*; D000077482:Carbon Fiber; D055664:Electrochemical Techniques; D004566:Electrodes; D005990:Glycerol / Q000737:chemistry; D009243:NAD / Q000737:chemistry; D037742:Nanotubes, Carbon / Q000737:chemistry*; D010084:Oxidation-Reduction; D016062:Porosity
chemical_list: D000077482:Carbon Fiber; D037742:Nanotubes, Carbon; D009243:NAD; D002244:Carbon; D005990:Glycerol