含氧官能团的英文
oxygen containing functional group
例句与用法
更多例句： 下一页- Characterization of fresh bc and asphaltenes show that fresh bc structurally rigid and physically condensed . and different to graphite , bc contains a little aliphatic groups and oxygen - containing groups
但现代碳黑又不同于石墨，它还具有一些含氧官能团、脂珠江三角洲地区土壤和表层沉积有机质的非均质性研究肪碳等结构。 - Fouriertransformation infro - red microspectroscopy micro - ftir technique was used to investigate the chemical compositions and structures of cutinite , vitrinite and fusinite from jurassic coals in tarim basin at different temperatures . the results show that the chemical structure of cutinite is mainly composed of long aliphatic - side chain with minor amounts of aromatic compounds . vitrinite is mostly composed of aromatic compounds , in addition to large amount of short aliphatic - side chain compounds . whereas fusinite are dominant by aromatic structure . the study indicates that cutinite is one of the best oil source - rocks , with the higher hydrocarbon - generation potential ; vitrinite is one of better gas source - rocks , and has medium hydrocarbon - generating potential ; fusinite has little hydrocarbon - generating potential . in addition , the components of aliphatic structures of cutinite , vitrinite and fusinite decrease , the aromatics are enriched and condensation of aromatic structure increases with increasing the temperature , and along with the rise of temperatures , the intensity of aliphatic structure and heteroatomic compounds decrease obviously , however the aromatic structure changes a little
应用显微红外光谱技术，对塔里木盆地侏罗纪煤中有代表性的3种组分角质体镜质体丝质体在不同热模拟温度下的结构组成变化特征进行了研究，结果表明：角质体结构组成中含有较丰富的长链脂族结构，而芳香结构和含氧官能团的含量则相对较少与此相反，丝质体结构组成中芳香烃占绝对优势，而脂族结构含量则很少镜质体结构组成介于角质体和丝质体之间，含有较多的短链脂族结构和芳香结构。 - Through the comparison between freeze - drying and heat - drying , the agglomeration and the desorption of the precursor on carbon support can be alleviated with freeze - drying method . the effects on the electrocatalysts by pretreatments of carbon support , dispersant and precursor are studied . the result shows that pretreatment of the carbon support by kmno _ 4 can add oxygen - containing functional groups on the surface of carbon , which can reduce the hydrophobicity of the carbon support , and then make it much easier for carbon to dissolve in water to form suspension ; isopropyl alcohol can make the carbon support in high dispersion in the precursor solution , which can make the precursor absorbed on the surface of the carbon
采用高锰酸钾氧化预处理的碳载体比表面积较大,表面含氧官能团数量较多,亲水性较好,有利于前躯体在碳载体表面的吸附;选取异丙醇作为预冻液中的分散剂,有利于碳载体在前躯体溶液中的分散,容易实现前躯体离子在碳载体表面的稳定吸附和分散;使用酸性pt ( no _ 2 ) _ 2 ( nh _ 3 ) _ 2作为前躯体,可以使前躯体离子和碳载体表面的酸性含氧官能团发生离子交换反应,使得前躯体离子吸附量增大,分散更加均匀,以上三种因素的选取都可以得到催化活性更高的pt / c催化剂。 - The analysis of 13c nmr and py - gc - ms also show each fraction of som has it ' s structural characterization . the aromatic carbon conte nt increasing and carbohydrate , oxygen - function groups decreasing from humic acid , kerogen to black carbon , molecular structure became more condensed , rigid , and stable . 2
~ ( 13 ) c核磁共振分析也说明了腐殖酸、干酪根和碳黑具有不同的结构特征，从腐殖酸、干酪根到碳黑，芳香碳结构增加，含氧官能团、碳水化合物等结构减少，整个大分子结构更加致密、刚硬和稳定。 - First , it is associated with the prepared conditions of spectral pure graphite electrode ; second , compared with the untreated graphite , the surface functional groups of ? oh and ? cooh on the treated one increased dramatically with hot concentrated h2so4 and the impurities on electrode surface decreased significantly with ultrasonic rinse . a sequence reaction mechanism was proposed for the eis of mn ( ) / mn ( ) on different graphite electrodes . the spectral graphite and the treated one can be suitable for the inert electrode of mn ( ) / mn ( ) cathode
分析原因认为：一方面与光谱纯石墨电极的制备条件有关；另一方面，与未处理石墨电极相比，处理石墨表面含氧官能团? oh 、 ? cooh明显增多，而且超声清洗又使其表面杂质含量减少，并提出了一个反应机理解释mn ( iii ) / mn ( ii )电对在三种石墨电极上阻抗谱的不同，说明光谱纯石墨和处理石墨均可以作为mn ( iii ) / mn ( ii )正极电对的惰性工作电极。
