日日夜夜天天综合久久一二三四 ,日日夜夜免费精品视频天天综合,天天综合,91综合永久麻豆7799,欧美日韩国产中字,亚洲mv大片vs欧洲mv大片,snh48亚洲大片免费国产,日日人人,国产精品久久久久久久,天天综合网精品视频7799,精品人妻无码一区二区三区淑枝,91香蕉视频网址,久久综合在线观看,国产卡一卡二卡三无线乱码新区,91po国产在线精品免费观看,天天干天天插天天射,中文日本永久精品国视频

Tungsten Disulfide Nanosheet: A Potential Game-Changer in the Catalysis Field

Tungsten disulfide nanosheet (WS? nanosheet) consists of tungsten and sulfur. Its structure resembles a sandwich, with one or more layers of tungsten atoms sandwiched between two layers of sulfur atoms, and these layers are held together by weak van der Waals forces. This unique layered structure endows the WS? nanosheet with many excellent physical and chemical properties, making it highly effective in the lcatalysis field.

china tungsten online tungsten disulfide picture

china tungsten online tungsten disulfide picture

I. As a Catalyst in Petroleum Processing
During petroleum processing, impurities such as sulfur and nitrogen not only reduce the quality of oil products but also generate harmful gases during combustion, contributing to environmental pollution. As a catalyst for hydrodesulfurization (HDS) and hydrodenitrogenation (HDN), tungsten disulfide nanosheet can effectively remove sulfur and nitrogen compounds from petroleum, significantly improving oil quality and reducing environmental pollution.

The high specific surface area and abundant active sites of tungsten disulfide nanosheet enhance reactant adsorption and reaction rates, accelerating hydrodesulfurization and hydrodenitrogenation processes. For example, during hydrodesulfurization, WS? nanosheet converts sulfides in petroleum (such as thiophene compounds) into hydrogen sulfide, which is subsequently removed. This highly efficient catalytic performance improves petroleum product purity and supports the production of clean fuels.

china tungsten online tungsten disulfide picture

china tungsten online tungsten disulfide picture

II. As a Catalyst in Aromatic Hydrogenation Reactions
Aromatics are important components in the petrochemical industry and are widely present in various petrochemical products. Through hydrogenation reactions, aromatics can be converted into more valuable cycloalkanes or saturated hydrocarbons, increasing product value. WS? nanosheet exhibits excellent catalytic activity and selectivity in aromatic hydrogenation reactions, significantly enhancing reaction efficiency.

The layered structure of tungsten disulfide nanosheet significantly enhances its catalytic performance. Its moderate interlayer spacing allows reactant molecules to easily access the catalyst’s interior and interact with active sites, improving reaction efficiency. In addition, sulfur vacancies and edge active sites on WS? nanosheet adsorb and dissociate hydrogen molecules, providing abundant active hydrogen for aromatic hydrogenation reactions. This highly efficient catalytic mechanism enables WS? nanosheet to excel in aromatic hydrogenation reactions, allowing selective synthesis of target products with high yields.

Comments are closed.

Address: 3F, No.25-1 WH Rd., Xiamen Software Park Ⅱ, FJ 361008,China Copyright ? 1997 - 2025 CTIA All Rights Reserved
Phone:+86-592-5129696,+86-592-5129595;    Email: sales@chinatungsten.com
舊版