【摘 要】
：
Microbial fuel cells (MFCs) have various potential applications.However,anode is a main bottleneck that limits electricity production performance of MFCs.Herein,we developed a novel anode based on a stainless steel cloth (SC) modified with carbon nanopart
【机 构】
：
College of Chemical and Biological Engineering,Key Laboratory of Biomass Chemical Engineering of Min
论文部分内容阅读
Microbial fuel cells (MFCs) have various potential applications.However,anode is a main bottleneck that limits electricity production performance of MFCs.Herein,we developed a novel anode based on a stainless steel cloth (SC) modified with carbon nanoparticles of Chinese ink (CI) using polypyrrole (PPy)as a building block (PPy/CI/SC).After modification,PPy/CI/SC showed a 30％ shorten in start-up time(36.4 ± 3.3 h vs.52.3 ± 1.8 h),33％ increase in the maximum current (12.4 ± 1.4 mA vs.9.3 ± 0.95 mA),and 2.3 times higher in the maximum power density of MFC (61.9 mW/m2 vs.27.3 mW/m2),compared to Ppy/SC.Experimental results revealed that carbon nanoparticles were able to cover SC uniformly,owing to excellent dispersibility of carbon nanoparticles in CI.The attachment of carbon nanoparticles formed a fluffy layer on SC increased the electrochemically-active surface area by 1.9 times to 44.5 cm2.This enhanced electron transfer between the electrode and bacteria.Further,embedding carbon nano-particles into the PPy layer significantly improved biocompatibility as well as changed functional group contents,which were beneficial to bacteria adhesion on electrodes.Taking advantage of high mechanical strength and good conductivity,a large-size PPy/CI/SC was successfully prepared (50×60cm2)demonstrating a promising potential in practical applications.This simple fabrication strategy offers a new idea of developing low cost and scalable electrode materials for high-performance energy harvesting in MFCs.
其他文献
Ion-in-conjugation (IIC) materials are emerging as an important class of organic electronic materials with wide applications in energy storage,resistive memories and gas sensors.Many IIC materials were designed and investigated,however the role of conjuga
Li-O2 batteries (LOBs) have been perceived as the most potential clean energy system for fast-growing electric vehicles by reason of their environmentally friendlier,high energy density and high reversibility.However,there are still some issues limiting t
Bi draws increasing attention as anode materials for lithium-ion batteries and sodium-ion batteries due to its unique layered crystal structure,which is in favor of achieving fast ionic diffusion kinetics during cycling.However,the dramatic volume expansi
In the crystal engineering area,it is important to clearly demonstrating the relationship of structure and certain functionality.Herein,we present the study of the relationship of structure with phosphorescent nature for two new room temperature phosphore
DNA methyltransferase (DNMT) and histone deacetylase (HDAC) are well recognized epigenetic targets for discovery of antitumor agents.In this study,we designed and synthesized a series of nucleoside base hydroxamic acid derivatives as DNMT and HDAC dual in
CO2 capture is considered as one of the most ideal strategies for solving the environmental issues and against global warming.Recently,experimental evidence has suggested that aluminum double bond(dialumene) species can capture CO2 and further convert it
Fabrication of well-designed heterojunctions is an extraordinarily attractive pathway for boosting the photocatalytic activity toward CO2 photoreduction.Herein,a novel kind of nanosheet-based intercalation hybrid coupled with CdSe quantum dots (QDs) was s
Carbon nanofiber-based supercapacitors have broad prospects in powering wearable electronics owing to their high specific capacity,fast charge/discharge process,along with long-cycling life.Herein,a poly(acrylonitrile-co-β-methylhydrogen itaconate) copoly
Prussian whites (PWs) with a three-dimensional framework can accommodate the insertion and extraction of ions with large radius,which have been widely used in potassium ion batteries.However,PWs show the poor cycling performance and inferior rate ability
MnOx-CeO2 catalysts are developed by hydrolysis driving redox method using acetate precursor(3Mn1Ce-Ac) and nitrate precursor (3Mn1Ce-N) for the selective catalytic reduction (SCR) of NOx by NH3.A counterpart sample (Cop-3Mn1Ce) was prepared by the NH3·H2