Journal Article10.1039/B809841G
A high-power glucose/oxygen biofuel cell operating under quiescent conditions
Hideki Sakai,Takaaki Nakagawa,Yuichi Tokita,Tsuyonobu Hatazawa,Tokuji Ikeda,Seiya Tsujimura,Kenji Kano +6 more
TL;DR: In this article, a passive-type biofuel cell was developed, which achieved a power density of 1.45 ± 0.24 mW cm−2 at 0.3 V. This performance was achieved by introducing three technologies: (1) Enzymes and mediator are densely entrapped on carbon-fiber electrodes with the enzymatic activity retained, (2) the concentration of buffer in electrolyte solution was optimized for the immobilized enzymes, and (3) the cathode structure was designed to supply O2 efficiently.
read more
Abstract: Biofuel cells are a next-generation energy device because they use renewable fuels with high energy density and safety. We have developed passive-type biofuel cell units, which generate a power over 100 mW (80 cm3, 39.7 g). Our biofuel cell, in which two-electron oxidation of glucose and four-electron reduction of O2 occurs at pH 7 in mediated bioelectrochemical processes under quiescent conditions, accomplished the maximum power density of 1.45 ± 0.24 mW cm−2 at 0.3 V. This performance was achieved by introducing three technologies: (1) Enzymes and mediator are densely entrapped on carbon-fiber electrodes with the enzymatic activity retained, (2) the concentration of buffer in electrolyte solution was optimized for the immobilized enzymes, and (3) the cathode structure was designed to supply O2 efficiently. The cell units with a multi-stacked structure successfully operate a radio-controlled car (16.5 g), which demonstrates the potential of biofuel cells in practical applications.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Nanotechnology-Enabled Energy Harvesting for Self-Powered Micro-/Nanosystems
Zhong Lin Wang,Wenzhuo Wu +1 more
TL;DR: Various approaches for energy harvesting to meet the future demand for self-powered MNSs are covered.
1K
Engineering hybrid nanotube wires for high-power biofuel cells
TL;DR: Under physiological conditions, the maximum power density of a miniature membraneless glucose/oxygen CNT biofuel cell exceeds by far the power density obtained for the current state of art carbon fibre biofuel cells.
Smart Textiles for Electricity Generation.
TL;DR: With worldwide efforts, innovations in chemistry and materials elaborated in this review will push forward the frontiers of smart textiles, which will soon revolutionize the authors' lives in the era of Internet of Things.
787
Enzymatic biofuel cells: 30 years of critical advancements.
TL;DR: This review details the advancements in the field of enzymatic biofuel cells over the last 30 years, including strategies for improving operational stability and electrochemical performance, as well as device fabrication for a variety of applications, including implantable bio fuel cells and self-powered sensors.
459
Enzymatic fuel cells: Recent progress
TL;DR: A review of recent efforts to improve electron transfer between the enzymes and electrodes, in the presence or absence of mediators, with most attention on implantable or semi-implantable enzymatic fuel cells that harvest the body's own fuel, glucose, coupled to oxygen reduction, to provide power to biomedical devices is presented in this paper.
434
References
A methanol/dioxygen biofuel cell that uses NAD+-dependent dehydrogenases as catalysts: application of an electro-enzymatic method to regenerate nicotinamide adenine dinucleotide at low overpotentials
TL;DR: Results reflect the low overpotential at which NADH is oxidized and demonstrate a new approach to lowering voltage losses in biofuel cells due to activation overpotentials.
Fructose/dioxygen biofuel cell based on direct electron transfer-type bioelectrocatalysis
TL;DR: TsLAC has been selected as the best one of the DET-type bioelectrocatalyst for the four-electron reduction of dioxygen in view of the thermodynamics and kinetics at pH 5.5.
An oxygen cathode operating in a physiological solution.
TL;DR: The electroreduction of O(2) to water under physiological conditions with immobilized electrocatalyst enabling the reduction is the electrostatic adduct of bilirubin oxidase from Myrothecium verrucaria and poly (N-vinylimidazole) complexed with [Os (4,4'-dichloro-2,2'-bipyridine)(2)Cl](+/2+), cross-linked on carbon cloth.
Bioelectrocatalysis-based dihydrogen/dioxygen fuel cell operating at physiological pH
TL;DR: In this article, a biochemical fuel cell was constructed using H2 as fuel to produce H2O in the reaction with O2 at neutral pH and moderate ambient temperature, using carbon felt as an electrode material for both the anode and the cathode and an anion exchange membrane as a separator.