公开(公告)号：US11447392B2

公开(公告)日：2022-09-20

申请号：US16804212

申请日：2020-02-28

申请人： QATAR UNIVERSITY

发明人： Ahmed Awadallah-F ,  Shaheen A. Al-Muhtaseb

IPC分类号： C01B32/166 ,  C01B32/18 ,  C08J3/075 ,  C02F1/68 ,  B01J21/18 ,  B82Y30/00 ,  B82Y5/00 ,  B82Y40/00

摘要： Provided are multiwalled carbon nanotubes (MWCNTs) decorated with nanospheres of carbon, methods of preparing multiwalled carbon nanotubes (MWCNTs) decorated with nanospheres of carbon, and uses thereof.

公开(公告)号：US08877826B2

公开(公告)日：2014-11-04

申请号：US13726119

申请日：2012-12-23

申请人： Qatar University

发明人： Ahmed Awadallah-F ,  Shaheen A. Al-Muhtaseb

IPC分类号： C08G8/00 ,  C08G8/22

CPC分类号： C08G8/22

摘要： Systems and methods for the electrochemical polymerization process for preparation of cross-linked gel. The process includes mixing a hydroxylated benzene and aldehyde in an aqueous media in an inert container to form a hydroxylated benzene and aldehyde mixture. Furthermore, the process includes introducing electrodes into the inert container. Further, the electrochemical polymerization process includes supplying electric current to the hydroxylated benzene and aldehyde mixtures in the inert container through the electrodes. The resultant products of electrochemical polymerization process either gels or activated carbon gels have unique characteristics.

摘要翻译： 用于制备交联凝胶的电化学聚合方法的系统和方法。 该方法包括将羟基化的苯和醛在含水介质中在惰性容器中混合以形成羟基化的苯和醛混合物。 此外，该方法包括将电极引入惰性容器中。 此外，电化学聚合方法包括通过电极向惰性容器中的羟基化苯和醛混合物供给电流。 所得到的凝胶或活性炭凝胶的电化学聚合方法产物具有独特的特性。

公开(公告)号：US09598287B2

公开(公告)日：2017-03-21

申请号：US14288315

申请日：2014-05-27

申请人： QATAR UNIVERSITY

发明人： Ahmed Awadallah-F ,  Shaheen A. Al-Muhtaseb

IPC分类号： C01B31/02 ,  C01B31/00

CPC分类号： C01B31/0293 ,  C01B32/18 ,  C01P2004/136 ,  Y10T428/2918

摘要： The method of synthesizing carbon nanorods (CNRs) and carbon nanowires (CNWs) involves carbonization of a resorcinol-formaldehyde cross-linked precursor gel. The first stage is the synthesis of resorcinol-formaldehyde cross-linked precursor gel. The second stage is carbonization of the gel by heating the gel in a furnace under the flow of nitrogen gas at 500° C. for three hours. The third stage involves activating the carbon by heating the carbon gel in a furnace under the flow of carbon dioxide gas for one hour at 700° C. to form the CNRs and CNWs.

公开(公告)号：US09394418B2

公开(公告)日：2016-07-19

申请号：US14288322

申请日：2014-05-27

申请人： QATAR UNIVERSITY

发明人： Ahmed Awadallah-F ,  Shaheen A. Al-Muhtaseb

IPC分类号： C08J9/00 ,  C08J9/30 ,  C08J9/14 ,  C08J9/12 ,  C08G8/22

CPC分类号： C08J9/141 ,  C08G8/22 ,  C08J9/122 ,  C08J9/30 ,  C08J2201/026 ,  C08J2203/06 ,  C08J2203/14 ,  C08J2205/026 ,  C08J2205/028 ,  C08J2205/042 ,  C08J2361/12

摘要： The sol-gel templating with the infusion of gas bubbles provides a process for synthesizing polymeric or gel materials while being templated with slow bubbling of various gases into the reacting media upon the polymerization or gelation stage. The process uses a source of gas, which is delivered at a desired rate and pressure via at least one inert tube directly into the reacting solution while the gel is being formed by sol-gel process. The tube(s) have a diameter selected to produce bubbles that result in the desired pore size and the number and placement of the tubes is selected to produce the desired pore structure and surface area in the gel template. The gel may be any gel capable of being formed by sol-gel process. The gas may be selected from carbon dioxide, methane, nitrogen, helium, argon, oxygen, hydrogen, propane, ethane, propylene, ethylene, air, and n-butane and other inert gases.

摘要翻译： 随着气泡注入的溶胶 - 凝胶模板提供了合成聚合物或凝胶材料的方法，同时在聚合或凝胶化阶段将各种气体缓慢鼓泡到反应介质中进行模板化。 该方法使用气体源，其以期望的速率和压力通过至少一个惰性管直接递送到反应溶液中，同时通过溶胶 - 凝胶法形成凝胶。 管具有选择的直径以产生产生所需孔径的气泡，并且选择管的数量和位置以产生所需的孔结构和凝胶模板中的表面积。 凝胶可以是能够通过溶胶 - 凝胶法形成的任何凝胶。 气体可以选自二氧化碳，甲烷，氮气，氦气，氩气，氧气，氢气，丙烷，乙烷，丙烯，乙烯，空气和正丁烷等惰性气体。

公开(公告)号：US11975973B2

公开(公告)日：2024-05-07

申请号：US16850619

申请日：2020-04-16

申请人： QATAR UNIVERSITY

发明人： Ahmed Awadallah-F ,  Shaheen A. Al-Muhtaseb

IPC分类号： C01B32/05 ,  C01B32/318 ,  C01B32/336 ,  C08J3/075

CPC分类号： C01B32/318 ,  C01B32/05 ,  C01B32/336 ,  C08J3/075 ,  C01P2004/03 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C08J2361/10

摘要： A method of synthesizing a gel may include dissolving resorcinol and formaldehyde to form a homogenous medium. The method may also include subjecting the medium to nitrogen gas flow. The method may further include subjecting the medium to a vacuum procedure at a room temperature. Thus, the medium is subjected to the melting temperature of resorcinol. In addition, the method may include cooling the gel and subjecting the formed gel to the vacuum procedure at the temperature lower than the melting temperature of resorcinol.

公开(公告)号：US11965065B2

公开(公告)日：2024-04-23

申请号：US17076491

申请日：2020-10-21

申请人： QATAR UNIVERSITY

发明人： Ahmed Awadallah-F ,  Shaheen Al-Muhtaseb

IPC分类号： C01B32/318 ,  C08G8/22

CPC分类号： C08G8/22 ,  C01B32/318 ,  C08G2220/00

摘要： In certain aspects and embodiments, the present invention provides a radiolytic polymerization/gelation method for the synthesis of gels and their subsequent activated carbon derivatives. In certain exemplary embodiments, resorcinol-formaldehyde gels are produced from resorcinol and formaldehyde without additives, catalysts, buffers, initiators or other species. In certain embodiments, ionizing γ-type radiation from 60Co is used as a radiation source in the gel crosslinking process. Different compositions of resorcinol/formaldehyde and a wide range of irradiation doses were examined. Various techniques are used to characterize the outcome product, either the gels or their derived carbon gels or activated carbon.