A general route to synthesize a series of ultrafine Mo-based HER-active bi-/tri-metallic carbide electrocatalysts by direct carbonization multi-metal molybdate precursors.

The potential of untreated Parthenium hysterophorus weed biomass was evaluated as a substrate for cellulase production. The cellulose in the biomass was used as the main source of carbon. Solid-state fermentation was carried out using Trichoderma reesei, and optimization of cultural conditions was done for maximization of cellulase production. The results revealed that highest cellulase product...

The asymmetric unit of the title compound, (C(6)H(4)S(4))(8)[Mo(6)O(19)](2)·CH(3)CN, contains two halves of two centrosymmetric [Mo(6)O(19)](2-) hexa-molybdate anions, which are each built up from six distorted MoO(6) octa-hedra sharing common edges and one common vertex at the central O atom, six tetra-thia-fulvalene cations (three of which are located on mirror planes) to balance the charge a...

In the present study, a sensitive modification of the colorimetric assay for catalase activity is reported. This assay is based on the reaction of undecomposed hydrogen peroxide with ammonium molybdate to give a yellowish color, which has maximum absorbance at 354 nm. Catalase-like activity is calculated from a comparison with the activity of a certified standard enzyme with known unit activity...

Phosphate (PO 4 3? ) is an important nutrient for phytoplankton growth and at high loadings can result in water quality deteriorations. Autonomous PO measurements are required monitoring purposes, best achieved using sensitive, portable low-cost techniques. Here we describe a new electrochemical sensor detection seawater. The quantification of typically depends on the reaction between molybdate...