The kinetics of most chemical energy storage/conversion systems depend on the mass transport through matter, which is rate-limited by various kinetic barriers. distinction barriers static and dynamic interfaces helps in reducing their impact therefore enhancing overall kinetics. concept introduced along examples hydrogen storage, thermal storage absorptive media, electrochemical water splitting...

Non-linear saturation kinetics can be described through a potency function, a trigonometric function, a logarithmic function, a hyperbolic function, or an exponential function. Saturable enzyme reaction kinetics can be alternatively formulated as a 1-exp function without the limitations of a steady-state assumption (d[C]/dt = 0, where C is the enzyme-substrate complex). The time-dependent subst...

The water soluble porphyrin tetrakis(4-N-methylpyridyl)porphine (H2TMpyP) and its copper(II) derivative (CuTMpyP) convert Z-poly(dG-dC) to the B-form. For H2TMpyP, the fraction Z character (fr-Z) is given by fr-Z = 1.0 - 21 rO and for CuTMpyP, fr-Z = .94 - 12 rO where rO identical to [Porphyrin]O/[DNA]O. Neither the manganese(III) derivative of of this porphyrin (MnTMpyP) nor tetrakis(2-N-methy...

The increasing significance of biomass in attaining ultimate sustainability a multitude vectors demands deeper understanding its underlying components. pyrolytic breakdown cellulose, major component, has been subject intense research since the 1950 s, and despite significant carried out published thus far, kinetics cellulose degradation continue to be source debate. Herein, this work investigat...

The kinetics of para-ortho conversion and nuclear spin relaxation of H 2 in chloroform- d 1 were investigated in the presence of nitroxides as paramagnetic catalysts. The back conversion from para-hydrogen ( p-H 2) to ortho-hydrogen ( o-H 2) was followed by NMR by recording the increase in the intensity of the signal of o-H 2 at regular intervals of time. The nitroxides proved to be hundreds of...

Abstract Understanding the kinetics and energetics of metal halide perovskite formation, particularly from structural point view at nanoscale, is important for advancement devices. In particular, insight needed regarding mechanisms by which conversion reactions occur, their kinetics. Here, we examine evolution precursor phases using in situ synchrotron x-ray scattering. This approach mitigates ...