Tin anode slime is a by-product of the tin electrolytic refining process. This study investigated route to separate Sn, Sb, Bi, and Cu from after leaching with hydrochloric acid. In solvent extraction process tributyl phosphate, Sb Sn were extracted into organic phase. Bi unextracted remained in liquid stripping experiment, stripped separated HCl HNO3. aqueous phase also chemical precipitation ...

patients and methods: this study included 526 subjects. gallstones and bile samples of the patients were cultured. isolates were identified by different biochemical tests and examined for their β-glucuronidase activity, slime production and urease activity. biostatistical analyses were done to determine the relationship between the biliary bacterial factors and the types of gallstones. role of ...

Mo, Cu-doped CeO2 (CMCuO) nanopowders were synthesized by the nitrate-fuel combustion method aiming to improve electrical and electrochemical properties of its Mo-doped (CMO) parent addition copper. An conductivity ca. 1.22·10−2 S cm−1 was measured in air at 800°C for CMCuO, which is nearly 10 times higher than that reported CMO. This increase associated with inclusion copper into crystal...

Non-corrosive, carbon-based materials are usually used as anodes in microbial fuel cells (MFCs). In some cases, however, metals have been used that can corrode (e.g. copper) or that are corrosion resistant (e.g. stainless steel, SS). Corrosion could increase current through galvanic (abiotic) current production or by increasing exposed surface area, or decrease current due to generation of toxi...

Interactions between copper and chlorine disinfectants were examined from the perspective of disinfectant decay and copper pitting corrosion. Sparingly soluble cupric hydroxide catalyzed the rapid decay of free chlorine, which in turn, led to production of less soluble and more crystalline phases of cupric hydroxide. The catalytic activity of the cupric hydroxide was retained over multiple cycl...

Structural degradation and low conductivity of transition-metal oxides lead to severe capacity fading in lithium-ion batteries. Recent efforts to solve this issue have mainly focused on using nanocomposites or hybrids by integrating nanosized metal oxides with conducting additives. Here we design specific hierarchical structures and demonstrate their use in flexible, large-area anode assemblies...

A sediment microbial fuel cell (SMFC) is a type of microbial fuel cell (MFC) that has recently attracted significantly attentions due to its unique property of removing organic and inorganic compounds from sediments. In this study the experiments were carried out in a dual-chamber SMFC with external resistances 30 kΩ-50 Ω. The SMFC was produced power about 630 mV with maximum power density 40 m...