Pyrenyl-carbon nanostructures for scalable enzyme electrocatalysis and biological fuel cells

The Analyst ◽  
2018 ◽  
Vol 143 (12) ◽  
pp. 2876-2882 ◽  
Author(s):  
Sadagopan Krishnan ◽  
Michael Frazis ◽  
Gayan Premaratne ◽  
Jinesh Niroula ◽  
Elena Echeverria ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Carbon Nanostructures ◽  
Scale Up ◽  
Carbon Nanostructure ◽  
Bilirubin Oxidase ◽  
Biological Fuel Cells

A large electrode geometric area-based pyrenyl carbon nanostructure modification for scale-up of electrocatalytic currents and power using hydrogenase anode and bilirubin oxidase cathode is demonstrated.

Biological fuel cells produce bioelectricity with in-situ brackish water purification

2018 ◽  
Vol 78 (2) ◽  
pp. 301-309 ◽  
Author(s):  
Simone Perazzoli ◽  
Renan B. Bastos ◽  
Fabrício B. Santana ◽  
Hugo M. Soares
Keyword(s):  
Fuel Cells ◽  
Brackish Water ◽  
Scale Up ◽  
Laboratory Research ◽  
Wastewater Purification ◽  
Promising Alternative ◽  
Reuse Water ◽  
Further Development ◽  
Biological Fuel Cells

Abstract Biological fuel cells, namely microbial desalination cells (MDCs) are a promising alternative to traditional desalination technologies, as microorganisms can convert the energy stored in wastewater directly into electricity and utilize it in situ to drive desalination, producing a high-quality reuse water. However, there are several challenges to be overcome in order to scale up from laboratory research. This study was conducted in order to better understand the performance of MDCs inoculated with marine sediments during the treatment of brackish water (5.0 g L−1 of NaCl) under three different configurations and cycles of desalination, envisaging the future treatment of saline wastewaters with conductivities lower than 10 mS cm−1. Results have shown that by increasing the desalination cycle three times, the efficiency of salt removal was improved by 3.4, 2.4 and 2.3 times for 1-MDC, 3-MDC, and 5-MDC, respectively. The same trend was observed for electrochemical data. Findings encourage further development of the MDC for sustainable brackish water and wastewater purification and future on-site utilization.

Glucose oxidase progressively lowers bilirubin oxidase bioelectrocatalytic cathode performance in single-compartment glucose/oxygen biological fuel cells

2014 ◽  
Vol 140 ◽  
pp. 59-64 ◽  
Author(s):  
Ross D. Milton ◽  
Fabien Giroud ◽  
Alfred E. Thumser ◽  
Shelley D. Minteer ◽  
Robert C.T. Slade
Keyword(s):  
Fuel Cells ◽  
Glucose Oxidase ◽  
Bilirubin Oxidase ◽  
Single Compartment ◽  
Biological Fuel Cells

Carbon Nanostructures as Electrocatalyst Supports for Polymer Electrolyte Fuel Cells

2021 ◽  
pp. 1-46
Author(s):  
David Sebastián ◽  
Cinthia Alegre ◽  
Sara Pérez‐Rodríguez ◽  
María J. Lázaro
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Carbon Nanostructures ◽  
Polymer Electrolyte Fuel Cells

scholarly journals Chalcogenides and Carbon Nanostructures: Great Applications for PEM Fuel Cells

2018 ◽  
Author(s):  
Yadira Gochi-Ponce ◽  
Gabriel Alonso-Núñez ◽  
Nicolás Alonso-Vante ◽  
Mercedes Teresita Oropeza-Guzmán
Keyword(s):  
Fuel Cells ◽  
Carbon Nanostructures ◽  
Pem Fuel Cells

Scale-up of amine-containing membranes for hydrogen purification for fuel cells

2019 ◽  
Vol 573 ◽  
pp. 465-475 ◽  
Author(s):  
Witopo Salim ◽  
Yang Han ◽  
Varun Vakharia ◽  
Dongzhu Wu ◽  
Douglas J. Wheeler ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Scale Up ◽  
Hydrogen Purification

scholarly journals Investigation of Nanographene Produced by In-Liquid Plasma for Development of Highly Durable Polymer Electrolyte Fuel Cells

2018 ◽  
Vol 4 (4) ◽  
pp. 65 ◽  
Author(s):  
Vladislav Gamaleev ◽  
Kengo Kajikawa ◽  
Keigo Takeda ◽  
Mineo Hiramatsu
Keyword(s):  
Power Generation ◽  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Amorphous Carbon ◽  
Carbon Nanostructures ◽  
Polymer Electrolyte Fuel Cells ◽  
Membrane Electrode ◽  
Catalytic Layer ◽  
Pt Nanoparticle ◽  
Durable Polymer

Recently, polymer electrolyte fuel cells (PEFCs) are attracting a lot of attention owing to their small size and relatively low working temperature (below 80 °C), which enables their usage in automobiles and household power generation. However, PEFCs have a problem with decreased output caused by corrosion of amorphous carbon, which is commonly used as a catalytic carrier. This problem could be solved by the usage of carbon nanostructures with a stronger crystal structure than amorphous carbon. In this work, nanographene supported by Pt nanoparticles was synthesized and examined for possible applications in the development of PEFCs with increased durability. Nanographene was synthesized by in-liquid plasma generated in ethanol using alternating current (AC) high voltage. A membrane electrode assembly (MEA) was constructed, where Pt nanoparticle-supported nanographene was used as the catalytic layer. Power generation characteristics of the MEA were evaluated and current density for the developed MEA was found to be approximately 240 mA/cm2. From the electrochemical evaluation, it was found that the durability of Pt nanoparticle-supported nanographene was about seven times higher than that of carbon black.

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