A new flow battery is presented using the abundant and inexpensive active material pairs permanganate/manganate disulfide/tetrasulfide. wetted set identified for compatibility with strongly oxidizing manganese couple at ambient elevated temperatures. Both solutions allow high solubility, cells tested theoretical energy densities up to 43 Wh l ?1 ?1.2 V cell. Full built nickel foam electrodes so...

Compared with monometallic selenides, heterogeneous bimetallic selenides have rich phase boundaries and superior electrical conductivity. ZnSe/CoSe2 composites were prepared by introducing Zn metal using ZIF-8/67 as the precursor through synergistic effect between Co after selenification. The electrocatalytic conversion of polysulfide is accelerated ZnSe chemical adsorption catalytic effect. co...

The development of effective rechargeable potassium–sulfur (K–S) batteries has been retarded by a severe polysulfide shuttle effect and low sulfur content in the cathode (generally less than 40 wt ...

Incidence of green mold of citrus, caused by Penicillium digitatum, was reduced by 80% or more by the immersion of lemons or oranges for 1–4 min in warm (40.6–43.3°C) ‘liquid lime-sulfur’ (LLS) solution that contained 0.75% (wt vol) calcium polysulfide. The incidence of sour rot, caused by Geotrichum citri-aurantii, was reduced 35–70% by this treatment. LLS was similar in effectiveness to other...

Calcium polysulfide (CPS) has been observed to maintain a reducing capacity for prolonged time periods when used to treat Cr(VI)-contaminated soils. This study utilized bulk and micro-X-ray absorption near edge structure (XANES) spectroscopy to investigate sulfur speciation in soil samples treated with CPS in batch and column studies and to determine the source of the reducing potential. Bulk X...