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Sulphated metal oxides with both Br?nsted and Lewis acid sites are widely used as solid acid catalysts and/or supports in organic synthesis,transformation reactions,and NOx removal. As Br?nsted acid sites play a crucial role in both the anchoring other active components and in catalytic reactions,such a decrease would cause deteriorations the intrinsic properties of solid acid materials. The number of Br□? 2ns...

Ni/ZnO is an ideal adsorbent for the reactive adsorption desulfurization to produce oil products with ultra-low sulfur content. In this work, the RADS of a model oil n-nonane containing dibenzothiophene was conducted over a Ni/ZnO adsorbent.

A research group led by Prof. Zhi-Wu Yu in the Department of Chemistry, Tsinghua University has tried to seek the answer by investigating the phase behavior of the most important and widely used phospholipid, dipalmitoylphosphatidylcholine (DPPC). The results have been published on an American Chemical Society journal, Journal of Physical Chemical B, on June, 6 2011. Their strategy was to combine calorimetry and s...

Organic semiconductors have attracted widespread interests due to their promising applications in organic electronic devices such as organic panel displays and photovoltaic cells (OPVCs). In these devices, the molecular orientation and interfacial coupling, which are found to markedly affect the charge transfer process, determine the device performance. For example, lying-down orientation could improve the charge ...

Porous carbon materials as a major candidate for hydrogen storage have attracted many scientific interests because of its light weight, abundant natural precursors, low cost, and high surface area. Tailored pore system of the porous carbon materials for hydrogen storage is an urgent matter. Functional materials group from the department of Physics in University of Science and Technology Beijing has developed a sim...

ZnO has substantial advantages including large exciton binding energy (60 meV) and direct wide band gap (3.37 eV) and has been regarded as one of the most promising candidates for ultraviolet (UV) light-emitting diodes (LEDs). However, there are many practical challenges that must be resolved before it leaps from lab to market-place. The most crucial one is to improve the light-emission efficiency with which the L...
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