In this communication, we, for the first time, prepared phosphorus-doped cobalt disulfide nanosheets as highly advanced electrocatalysts for the hydrogen evolution reaction. It was demonstrated that P doping could significantly enhance the electrocatalytic performance of CoS2 nanosheets in terms of onset overpotential, Tafel slope, exchange current density, and stability.

Constructing heterostructure within electrocatalysts proves to be an attractive approach adjust the interfacial charge redistribution promote adsorption of reactive species and accelerate transfer. Herein, we present one-pot solvothermal synthesis Ti3C2 supported hollow CoS2/CoS microsphere with uneven distribution as cathodic catalyst, which displays a superior quasi-first-order degradation ra...

Densely aligned CoS2 nanowires (NWs) on chemically durable stainless steel fibers felt (SSF) substates were synthesized by thermal sulfuring Co3O4 NWs, which oxidized from hydrothermal Co(OH)y(CO3)(1?0.5y)·nH2O NWs precursors. The effect of sulfuration temperature the composition, morphology, and HER performance products was studied in detail. results show that high purity together with enlarge...

Many materials have been explored as potential hydrogen evolution reaction (HER) electrocatalysts to generate clean hydrogen fuel via water electrolysis, but none so far compete with the highly efficient and stable (but cost prohibitive) noble metals. Similarly, noble metals often excel as electrocatalytic counter electrode materials in regenerative liquid-junction photoelectrochemical solar ce...

Hedgehog (Hh) activates a signal transduction pathway regulating Cubitus interruptus (Ci). In the absence of Hh, full-length Ci (Ci-155) is bound in a complex that includes Costal2 (Cos2) and Fused (Fu). Ci-155 is phosphorylated by protein kinase A (PKA), inducing proteolysis to Ci-75, a transcriptional repressor. Hh signaling blocks proteolysis and produces an activated Ci-155 transcriptional ...

Hedgehog controls the expression of key developmental genes through the conversion of the transcription factor Cubitus interruptus (Ci) into either an activator (Ci[act]) or a repressor (Ci[rep]) form. Proteolytic cleavage of full-length Ci is important for the generation of Ci[rep], but little is known about how Ci[act] arises in response to Hh. Here we examine Hh signal transduction component...

Mammalian Sonic hedgehog (Shh) signaling is essential for embryonic development and stem cell maintenance and has critical roles in tumorigenesis. Although core components of the Shh pathway are conserved in evolution, important aspects of mammalian Shh signaling are not shared with the Drosophila pathway. Perhaps the most dramatic difference between the Drosophila and mammalian pathways is tha...