国产精品视频一区二区三区四,亚洲av美洲av综合av,99国内精品久久久久久久,欧美电影一区二区三区电影

產(chǎn)品推薦:氣相|液相|光譜|質(zhì)譜|電化學(xué)|元素分析|水分測(cè)定儀|樣品前處理|試驗(yàn)機(jī)|培養(yǎng)箱


化工儀器網(wǎng)>技術(shù)中心>儀器文獻(xiàn)>正文

歡迎聯(lián)系我

有什么可以幫您? 在線咨詢

測(cè)量應(yīng)用案例-20201006

來源:美國布魯克海文儀器公司   2020年10月24日 08:59  
 文獻(xiàn)名: Aggregation morphology of planar engineered nanomaterials

 

作者 S. Drew Storya,Stephen Boggsa,Linda M.GuineybMani Rameshb,Mark C.Hersamb,C. Jeffrey Brinkerc,Sharon L.Walkerad

aDepartment of Chemical and Environmental Engineering, University of California, Riverside, CA, USA

bDepartments of Materials Science and Engineering, Chemistry, and Medicine, Northwestern University, Evanston, IL, USA

cDepartment of Chemical and Biological Engineering, University of New Mexico, Albuquerque, NM, USA

dDepartment of Civil, Architectural, and Environmental Engineering, Drexel University, Philadelphia, PA, USA

 

 

 

摘要:In this investigation, the utility of a static light scattering (SLS) technique to characterize aggregate morphology of two-dimensional engineered nanomaterials (2D ENMs) was systematically evaluated. The aggregation of graphene oxide (GO) and lithiated-molybdenum disulfide (Li-MoS2) were measured and compared to that of a spherical reference colloid, carboxylate-modified latex (CML) nanoparticles. The critical coagulation concentration (CCC) for all dispersions was determined via analysis of aggregation kinetics using time-resolved dynamic light scattering. This technique allowed for the elucidation of the transition from the reaction-limited aggregation (RLA) regime to diffusion-limited aggregation (DLA). The findings of this study support the aggregation trends predicted by Derjaguin-Landau-Verwey-Overbeek (DLVO) theory and recent computer simulations of aggregation kinetics. For all nanomaterials, as ionic strength increased towards the respective the CCC, fractal dimension decreased; any increase in ionic strength beyond the CCC did not yield significant change in fractal dimension. Across comparable primary particle sizes and using both carbonaceous (GO) and inorganic (Li-MoS2) 2D ENMs, this study further supports the use of SLS for the measurement of fractal dimension for 2D materials. To further support this claim, the aggregate morphology of GO in both RLA and DLA regimes was measured via cryogenic transmission electron microscopy.

免責(zé)聲明

  • 凡本網(wǎng)注明“來源:化工儀器網(wǎng)”的所有作品,均為浙江興旺寶明通網(wǎng)絡(luò)有限公司-化工儀器網(wǎng)合法擁有版權(quán)或有權(quán)使用的作品,未經(jīng)本網(wǎng)授權(quán)不得轉(zhuǎn)載、摘編或利用其它方式使用上述作品。已經(jīng)本網(wǎng)授權(quán)使用作品的,應(yīng)在授權(quán)范圍內(nèi)使用,并注明“來源:化工儀器網(wǎng)”。違反上述聲明者,本網(wǎng)將追究其相關(guān)法律責(zé)任。
  • 本網(wǎng)轉(zhuǎn)載并注明自其他來源(非化工儀器網(wǎng))的作品,目的在于傳遞更多信息,并不代表本網(wǎng)贊同其觀點(diǎn)和對(duì)其真實(shí)性負(fù)責(zé),不承擔(dān)此類作品侵權(quán)行為的直接責(zé)任及連帶責(zé)任。其他媒體、網(wǎng)站或個(gè)人從本網(wǎng)轉(zhuǎn)載時(shí),必須保留本網(wǎng)注明的作品第一來源,并自負(fù)版權(quán)等法律責(zé)任。
  • 如涉及作品內(nèi)容、版權(quán)等問題,請(qǐng)?jiān)谧髌钒l(fā)表之日起一周內(nèi)與本網(wǎng)聯(lián)系,否則視為放棄相關(guān)權(quán)利。
企業(yè)未開通此功能
詳詢客服 : 0571-87858618
玛多县| 墨玉县| 鄱阳县| 察哈| 香港| 黄龙县| 青铜峡市| 凤阳县| 灵寿县| 莲花县| 大安市| 茌平县| 龙陵县| 开原市| 漳州市| 措勤县| 达日县| 东丽区| 巴林右旗| 安阳市| 信宜市| 青州市| 义乌市| 莱芜市| 瑞昌市| 辽源市| 和田县| 达拉特旗| 马边| 台南县| 衡南县| 抚远县| 贡觉县| 潍坊市| 木里| 梁山县| 贞丰县| 行唐县| 项城市| 阆中市| 新巴尔虎左旗|