The direct use of enzymatic biofuel cells as functional bioelectronics

Xiao, Xinxin

doi:10.1016/j.esci.2021.12.005

Cited by 49 publications

(23 citation statements)

References 87 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The calculated maximum C dl of 22.89 mF cm –2 for IF-Ni 150 mM with a large ECSA value manifests that it possesses sufficient reaction sites as well (Figure S12 and Figure S16, SI). The electrochemical impedance spectroscopy (EIS) curves measured at an overpotential of 0.5 V reveal a smaller charge-transfer resistance ( R ct ) for IF-Ni 150 mM (Figure S17 and Table S2, SI), suggesting a relatively favorable charge transport capacity in contrast to the reference samples. − All the above results indicate that IF-Ni 150 mM is a superior OER catalyst with accelerated electron transfer kinetics and sufficient reactive sites, showing high potential for practical application. The electrocatalytic OER capacity of the catalyst prepared in this work is among the top level in the class of transition-metal-based electrocatalysts previously reported (Figure g,h and Tables S3 and S4, SI).…”

Section: Resultsmentioning

confidence: 91%

Ultrafast Combustion Synthesis of Robust and Efficient Electrocatalysts for High-Current-Density Water Oxidation

et al. 2023

View full text Add to dashboard Cite

The scalable production of inexpensive, efficient, and robust catalysts for oxygen evolution reaction (OER) that can deliver high current densities at low potentials is critical for the industrial implementation of water splitting technology. Herein, a series of metal oxides coupled with Fe2O3 are in situ grown on iron foam massively via an ultrafast combustion approach for a few seconds. Benefiting from the three-dimensional nanosheet array framework and the heterojunction structure, the self-supporting electrodes with abundant active centers can regulate mass transport and electronic structure for prompting OER activity at high current density. The optimized Ni(OH)2/Fe2O3 with robust structure can deliver a high current density of 1000 mA cm–2 at the overpotential as low as 271 mV in 1.0 M KOH for up to 1500 h. Theoretical calculation demonstrates that the strong electronic modulation plays a crucial part in the hybrid by optimizing the adsorption energy of the intermediate, thereby enhancing the efficiency of oxygen evolution. This work proposes a method to construct cheap and robust catalysts for practical application in energy conversion and storage.

show abstract

Section: Resultsmentioning

confidence: 91%

Ultrafast Combustion Synthesis of Robust and Efficient Electrocatalysts for High-Current-Density Water Oxidation

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Besides, the wafer-scale production of micro-supercapacitor remains low in technological readiness level [279]. Similarly, clean electricity can be generated by the reduction of carbon dioxide [280,281], hydropower [282], and solar cells [283]. Second, the production cost should be reduced to less than the graphite.…”

Section: Pressure Sensors For Touch Sensementioning

confidence: 99%

Applications of MXenes in human-like sensors and actuators

et al. 2022

View full text Add to dashboard Cite

Human beings perceive the world through the senses of sight, hearing, smell, taste, touch, space, and balance. The first five senses are prerequisites for people to live. The sensing organs upload information to the nervous systems, including the brain, for interpreting the surrounding environment. Then, the brain sends commands to muscles reflexively to react to stimuli, including light, gas, chemicals, sound, and pressure. MXene, as an emerging two-dimensional material, has been intensively adopted in the applications of various sensors and actuators. In this review, we update the sensors to mimic five primary senses and actuators for stimulating muscles, which employ MXene-based film, membrane, and composite with other functional materials. First, a brief introduction is delivered for the structure, properties, and synthesis methods of MXenes. Then, we feed the readers the recent reports on the MXene-derived image sensors as artificial retinas, gas sensors, chemical biosensors, acoustic devices, and tactile sensors for electronic skin. Besides, the actuators of MXene-based composite are introduced. Eventually, future opportunities are given to MXene research based on the requirements of artificial intelligence and humanoid robot, which may induce prospects in accompanying healthcare and biomedical engineering applications.

show abstract

“…Hydrogen peroxide (H 2 O 2 ), as a vital reactive oxygen species, creates a wide demand for effective concentration monitoring in pharmaceutical, environmental, and food manufacturing areas, which is generated from certain classic biochemical reactions catalyzed by enzymes. − Therefore, it is urgent to develop a stable and precise detector to characterize the amount of H 2 O 2 , ranging from disease prevention to improvement in the quality of daily life. − Recently, some conventional techniques for H 2 O 2 determination have been reported, including fluorescence, spectrophotometry, and electrochemistry. − Among these traditional ways, the electrochemical method attracts great attention due to its rapid response, high sensitivity, and simple instruments . Under the potential scan conditions, H 2 O 2 can be directly oxidized or reduced on the surface of electrochemically active solid electrodes, while these processes are often confined by slow electrode kinetics in multistep chemical reactions and high overpotential, which will influence the sensing performances and trigger interferences from other existing electroactive species at the same time. − Currently, some research studies on the electrochemical detection of H 2 O 2 are mainly focused on electrode modification to promote the electron transfer and simultaneously decrease the electrode polarization .…”

Section: Introductionmentioning

confidence: 99%

ZnFe₂O₄/Graphitic Carbon Nitride Nano/Microcomposites for the Enhanced Electrochemical Sensing of H₂O₂

Yang

Sun

et al. 2022

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

Hydrogen peroxide (H2O2) sensors with high sensitivity and stable detecting ability have been particularly in demand in the charming medical health and environmental monitoring. In this work, spherical ZnFe2O4/g-C3N4 (ZFO/g-C3N4) nano/microcomposites with different contents of g-C3N4 were controllably synthesized through a solvothermal calcination strategy, and the morphologies of their target materials were systematically characterized via scanning electron microscopy, energy dispersive spectroscopy, high-resolution transmission electron microscopy, Fourier transform infrared spectroscopy, and X-ray diffraction. Subsequently, the as-prepared spherical ZFO/g-C3N4 composites are designed as an outstanding electrochemical sensor for H2O2, and its sensitivity was evaluated using cyclic voltammetry and chronoamperometry techniques. The ZFO/g-C3N4 microspheres exhibited a synergistic catalytic effect with a broad linear detection range between 5 and 200 μM and a detection limit of 1 μM (S/N = 3). The enhanced electrochemical performances of uniform ZFO/g-C3N4 composites with a three-dimensional net structure proved that the combination of a two-dimensional material (C3N4) and spinel-type metal oxide (ZnFe2O4) produces apparent activity, showing broad application potential in nonenzymatic sensors.

show abstract

The direct use of enzymatic biofuel cells as functional bioelectronics

Cited by 49 publications

References 87 publications

Ultrafast Combustion Synthesis of Robust and Efficient Electrocatalysts for High-Current-Density Water Oxidation

Ultrafast Combustion Synthesis of Robust and Efficient Electrocatalysts for High-Current-Density Water Oxidation

Applications of MXenes in human-like sensors and actuators

ZnFe₂O₄/Graphitic Carbon Nitride Nano/Microcomposites for the Enhanced Electrochemical Sensing of H₂O₂

Contact Info

Product

Resources

About

The direct use of enzymatic biofuel cells as functional bioelectronics

Cited by 49 publications

References 87 publications

Ultrafast Combustion Synthesis of Robust and Efficient Electrocatalysts for High-Current-Density Water Oxidation

Ultrafast Combustion Synthesis of Robust and Efficient Electrocatalysts for High-Current-Density Water Oxidation

Applications of MXenes in human-like sensors and actuators

ZnFe2O4/Graphitic Carbon Nitride Nano/Microcomposites for the Enhanced Electrochemical Sensing of H2O2

Contact Info

Product

Resources

About

ZnFe₂O₄/Graphitic Carbon Nitride Nano/Microcomposites for the Enhanced Electrochemical Sensing of H₂O₂