Exploiting non-noble metals catalysts read more with excellent performance for hydrogen evolution reaction (HER) has aroused gigantic interest, but still challenges.Herein, we reported the graphene oxide (GO) supported Fe doped Ni(OH) _2 hexagonal nanosheets (GO-Fe,Ni HHNs) for HER firstly.SEM and XRD were carried out to investigate the morphology
Ascites is a complex problem caused by many interacting factors such as genetics, environment and management.Many nutritional, medicinal and management strategies have been proposed to alleviate the problem.Higher levels of dietary vitamin C and E along with selenium yeast might be beneficial, presumably because of their role in improving cellular
We show that there is a fundamental flaw in the application of modified gravity theories in cosmology, taking f(R) gravity as a paradigmatic example.This theory contains a scalar degree of freedom that couples to the matter stress-energy tensor but not to gravitational energy.However, when applied to cosmology this theory is unable to distinguish b