نتایج جستجو برای: cocatalyst
تعداد نتایج: 432 فیلتر نتایج به سال:
The oxygen reduction reaction (ORR) is an important challenge in the development and large-scale distribution of energy conversion devices, especially low-temperature proton exchange membrane (PEM) fuel cells. In order to speed up ORR kinetics improve cell performance, iron-doped calcium titanate (CTFO) proposed as a cocatalyst. Fundamental physical chemical characterizations by means X-ray dif...
We describe an efficient photoredox system, relying on decatungstate/disulfide catalysts, for the hydrofunctionalization of styrenes. In this methodology use disulfide as a cocatalyst was shown to be crucial reaction efficiency. This system employed hydro-carbamoylation, -acylation, -alkylation, and -silylation styrenes, giving access large variety useful building blocks high-value molecules su...
High-temperature (150–170 ◦C) pretreatment of lignocellulosic biomass with mineral acids is well established for xylan breakdown. Fe2+ is known to be a cocatalyst of this process although kinetics of its action remains unknown. The present work addresses the effect of ferrous ion concentration on sugar yield and degradation product formation from corn stover for the entire two-step treatment, i...
Photocatalyst overall water splitting is usually restricted by low carrier separation efficiency and a slow surface reaction rate. Cocatalysts provide satisfactory solution to significantly improve photocatalytic performance. In this review, some recent advances in cocatalysts for are gathered divided into groups. Firstly, the loading method of cocatalyst introduced. Then, role applied process ...
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