Electroaddressing of biological components at specific device addresses is attractive because it enlists the capabilities of electronics to provide spatiotemporally controlled electrical signals. Here, the electrodeposition of calcium alginate hydrogels at specific electrode addresses is reported. The method employs the low pH generated at the anode to locally solubilize calcium ions from insol...

Recently a fingering morphology, resembling the hydrodynamic Saffman-Taylor instability, was identified in the quasi-two-dimensional electrodeposition of copper. We present here measurements of the dispersion relation of the growing front. The instability is accompanied by gravity-driven convection rolls at the electrodes, which are examined using particle image velocimetry. While at the anode ...

r s a T a a Electrochemical methods were developed for the deposition of nanosilicon onto a 3D virus-structured nickel current collector. This nickel current collector is composed of self-assembled nanowire-like rods of genetically modifi ed tobacco mosaic virus (TMV1cys), chemically coated in nickel to create a complex high surface area conductive substrate. The electrochemically deposited 3D ...

An electrochemical cell based on the reversible oxygen reduction reaction: 2Li+ + 2e - + O2↔ Li2O2, provides among the most energy dense platforms for portable electrical energy storage. Such Lithium-Oxygen (Li-O2) cells offer specific energies competitive with fossil fuels and are considered promising for electrified transportation. Multiple, fundamental challenges with the cathode, anode, and...

Lead dioxide coatings on inert substrates such as titanium and carbon now offer new opportunities for a material known for 150 years. It is now recognised that electrodeposition allows the preparation of stable coatings with different phase structures and a wide range of surface morphologies. In addition, substantial modification to the physical properties and catalytic activities of the coatin...

In NaCl-KCl-NaF-V2O3 molten salt, used graphite as an anode and carbon steel plate a cathode, vanadium was successfully prepared by salt electrodeposition. The reduction mechanism of electrodeposition is discussed, the influence NaF content, current density, temperature, time on are studied. optimum conditions obtained: composition XNaCl = 0.4, XKCl XNaF 0.2, V2O3 15%; adopt bidirectional pulse...

The lithium dendrite and parasitic reactions are two major challenges for (Li) metal anode—the most promising anode materials high-energy-density batteries. In this work, both the that occurred between liquid electrolyte Li-metal could be largely inhibited by regulating Li+-solvation structure. saturated species exist in commonly used LiPF6 needs extra energy to desolvation during Li-electrodep...

Lithium and sodium metal batteries continue to occupy the forefront of battery research. Their exceptionally high energy density nominal voltages are highly attractive for cutting‐edge storage applications. Anode‐free also coming into research spotlight offering improved safety even higher densities than conventional batteries. However, uneven nucleation growth which leads dendrites continues l...

Anode modification is a useful method to increase the performance of microbial fuel cells (MFCs). By using electrochemical deposition method, Fe3O4 and polypyrrole (PPy) were polymerized on carbon felt anode prepare Fe3O4-PPy composite modified anodes. In order ascertain effect electrodeposition time characteristics electrode, preparation electrode was adjusted. The anodes used in MFCs, their p...

Nickel behavior has a significant role in the electrorefining of copper, and although it been extensively studied from anode electrolyte point view over past decades, studies on nickel contamination at cathode are limited. In current paper, three possible mechanisms—particle entrapment, inclusions co-electrodeposition—were investigated. Copper (Cu-ER) was conducted laboratory scale, cathodes we...