Microbial electrolysis cell (MEC) is a gripping bio-electrochemical device producing H2 gas from renewable biomass while at the same time treat wastewater.  Through extensive global research efforts in the latest decade, the performance of MECs, including energy efficiency, hydrogen production rate (HPR), and hydrogen recovery have achieved significant breakthroughs. However, employi...

Formic acid is a highly energetic electron donor but it has previously resulted in low power densities in microbial fuel cells (MFCs). Three different set anode potentials (-0.30, -0.15, and +0.15 V; vs. a standard hydrogen electrode, SHE) were used to evaluate syntrophic interactions in bacterial communities for formic acid degradation relative to a non-controlled, high resistance system (1,00...

According to circumstance of kerman sarcheshmeh cooper complex that its anode slime is mainly consisted of Cu, Ag, Au, Pb and Se. In this work, recovery of silver from anode slime and subsequent synthesis of silver nanoparticles from leaching solution was made. Silver was separated from anode slime by using of HNO3 and HCl. X-Ray fluorescence spectroscopy (XRF) was used to characterize anode sl...

A dual-potential ratiometric electrochemiluminescence (ECL) sensing approach based on Mg(2+)-dependent DNAzyme-regulated ECL signals of luminol and CdS quantum dots (QDs) is designed. The system consists of DNAzyme strand functionalized QDs as capture probes and cathode ECL emitters, luminol-reduced gold nanoparticles (Au@luminol) as anode ECL emitters, and a Mg(2+) substrate strand modified wi...

A stationary plasma thruster (SPT, or Hall Thruster) is an electromagnetic thruster whose properties make it especially suitable for applications such as satellite station-keeping. Fig. 1 represents schematically the geometry of the SPT. Xenon is injected from the anode (rate on the order of 5mg/s), at the end of the dielectric cylinders and on the cathode side, outside the cylinders. We are ma...

Metallic lithium is a promising anode candidate for future high-energy-density lithium batteries. It is a light-weight material, and has the highest theoretical capacity (3,860 mAh g(-1)) and the lowest electrochemical potential of all candidates. There are, however, at least three major hurdles before lithium metal anodes can become a viable technology: uneven and dendritic lithium deposition,...

We have studied electron emission from solid Ar, Kr, and Xe films induced by impact of 10–100 keV protons at normal incidence. Electron yields were measured as a function of applied anode voltage and film thickness from 200 to 7000 Å. The observed electron yields are huge—hundreds of electrons per incident ion: higher, per amount of electronic energy deposited, than for any other material studi...

Reliability of SOFC stacks is a complex and key issue. This paper presents a simulation study including some degradation processes, namely nterconnect degradation and the anode reoxidation potential. Quantification for these phenomena has been included in a repeat element model to imulate stack degradation and study the influence of design and operating parameters on the degradation. Interconne...

New sustainable methods are needed to produce renewable energy carriers that can be stored and used for transportation, heating, or chemical production. Here we demonstrate that methane can directly be produced using a biocathode containing methanogens in electrochemical systems (abiotic anode) or microbial electrolysis cells (MECs; biotic anode) by a process called electromethanogenesis. At a ...