To fulfill the high power and high energy density demands for Li-ion batteries (LIBs) new anode materials need to be explored to replace conventional graphite. Herein, we report the urea assisted facile co-precipitation synthesis of spinel NiCo2O4 and its application as an anode material for LIBs. The synthesized NiCo2O4 exhibited an urchin-like microstructure and polycrystalline and mesoporous...

Microbial fuel cells (MFC), as bioelectrochemical systems, hold promise as a sustainable source of energy for use in novel environments and settings. Although electrode biofilms, both anode and cathode, are critical to the production of power in these systems, the taxonomies of the biofilms that form are not fully understood. The specific objectives of the current study were to classify the bac...

It is known that cell potential increases while anode resistance decreases during the start-up of microbial fuel cells (MFCs). Biological capacitance, defined as the apparent capacitance attributed to biological activity including biofilm production, plays a role in this phenomenon. In this research, electrochemical impedance spectroscopy was employed to study anode capacitance and resistance d...

recently, a variety of soils contaminated with heavy metals e.g. cr (vi), have been found in industrial sites. such soil contamination is widely distributed in the world and has now become a serious issue for environment. hexavalent chromium, cr (vi), which is known to be carcinogenic and mutagenic to living organisms, has been utilized for leather tanning, electroplating and in other industrie...

As material for flexible transparent electrodes for organic photoelectric devices, the silver nanowires (AgNWs) have been widely studied. In this work, we propose a hybrid flexible anode with photopolymer substrate, which is composed of spin-coating-processed AgNW meshes and of zinc oxide (ZnO) prepared by low-temperature (60°C) atomic layer deposition. ZnO effectively fills in the voids of the...

A facile and scalable approach to synthesize silicon composite anode was developed by encapsulating Si particles via in-situ polymerization and carbonization of phloroglucinolformaldehyde gel, followed by incorporation of graphene nanoplatelets. Attributed to the improved structural integrity, a high packing density and an intimate electrical contact consolidated by the conductive networks, the...

A sonochemical process has been developed for the insertion of tin nanoparticles into mesoporous carbon, giving a product which was used as a building block for the anode of a rechargeable Li battery; the electrode could deliver a reversible capacity of 400 mAh gr(-1)(C + Sn) at 100% cycling efficiency, which is higher than that of graphite electrodes.

A tailored conversion-reaction anode material of 1-D MoS2 nanofibers with a vine-like shape composed of MoS2 nanoflakes delivers exceptionally high Na capacity and exhibits excellent rate properties. The improved cycleability of the MoS2 nanofiber electrode is achieved by a uniform TiO2 coating, which effectively minimized the sulfur dissolution.

In this communication, FeMnO3 particles were prepared and evaluated as an anode material for Li ion batteries. This electrode shows high capacity, excellent rate capability, and good cycling stability (984 mA h g-1 at 1.0 A g-1 after 500 cycles). Moreover, the Li storage mechanism is studied.