测氮气吸附脱附滞后环bet吸附只有吸附数据,没有脱附数据,怎么回事

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BET比表面积测试原理
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2016年末,首都科技条件平台科学仪器开发培育项
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氮气吸附测试数据中BJH脱附支数据很少,只有几个点
测试是KL分子筛,在350°脱气,仪器是Micromeritics ASAP 2010 HD88,测试的结果如下图,脱附支没有点是怎么回事?
我是用HCl处理的,想看下孔径结构的变化,看看介孔的孔径分布
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的翻译结果:
查询用时:1.64秒
&在分类学科中查询
Gas Separation Membrane with Selective Adsorption Desorption Characteristic for C_1 Chemistry
用于C_1化学具有选择吸附-脱附特性的气体分离膜
The synthesized samples were characterized by XRD、 N2 adsorption
desorption、 TG
DTA and IR.
通过XRD、N2吸附-脱附、TG-DTA、IR等测试手段对这两种样品进行了对比表征分析.
Mesoporous Al
X aluminosilicates have been prepared through a two
step route using preformed zeolite
like nanoclusters and TX
100 as the inorganic source and mesostructure
directing agent respectively, and characterized by XRD, HRTEM, N
2 adsorption
desorption isotherm,
27Al MAS NMR, NH
TPD and so on.
以预先制备的Al O Si纳米粒子为前驱物和非离子型表面活性剂聚乙二醇辛基苯基醚 (TX 10 0 )为中孔导向剂两步合成了孔道形状为“wormhole like”的含铝MSU X介孔材料 ,并用XRD ,HRTEM ,N2 吸附 -脱附 ,2 7AlMASNMR ,NH3
TPD和催化裂化异丙苯对其结构和催化性能进行了表征 ;
Adsorption
desorption and photolysis of the herbicide imazethapyr in soil
water environment.
除草剂普杀特在土壤—水两相中的吸附-脱附和光解
Organic inorganic hybrid mesoporous molecular sieve MCM 41 was synthesized by co condensation of tetraethoxysilane (TEOS) and 3 chlorpropyl triethoxysilane,then reacted with (1R,2R) 1,2 diaminocyclohexane and dichloro(p cymene) ruthenium dimer successively to afford immobilized asymmetric hydrogen transfer catalyst. The prepared catalyst was characterized by means of FT IR,PXRD and N2 adsorption desorption isotherms,and was applied in asymmetric hydrogen transfer reactions of reduction of acetophenone to α phenyl ethanol.
用γ-氯丙基三乙氧基硅烷和正硅酸乙酯混合在模板剂引导下共水解合成了有机-无机杂化的介孔分子筛MCM-41,通过与(1R,2R)-1,2-环己二胺和RuCl2(p-cymene)2反应,制成了固载化的不对称氢转移反应催化剂,并进行了FT-IR、XRD和N2吸附-脱附的表征.
TG,SEM,TEM,IR,XRD and N_2 absorption-desorption were carried out to characterize the as-synthesized materials ,in order to investigate the factors affecting organization,morphology and porous structure of as-synthesized materials of synthesis procedure such as pH values、 time of hydrothermal synthesis、 crystallization temperature ,calcinations condition and so on.
用TG、SEM、TEM、XRD、IR和N_2吸附-脱附对样品进行了表征,来考察合成过程中pH值、水热合成时间、晶化温度、煅烧条件等对合成产物的组织、形貌和孔结构性能等的影响。
The N2 absorption - desorption isotherm of the samples at liquid nitrogen temperature (78K) and gas saturation vapor tension range are measured by ASAP 2010 static volumetric absorption analyzer.
样品的N_2的吸附-脱附等温线采用静态表面吸附仪在液氮温度下(78 K)在气体饱和蒸气压力范围内测试。
According to BET multiplayer adsorption theory, N_2 absorption-desorption isotherm of the samples at liquid Nitrogen circumstance (78k), and gas saturation vapor pressure range were measured by using the static volumetric absorption analyzer. Based on absorption isotherm, illustration method was adopted to obtain the single layer adsorption capacity, and BET adsorption equation was utilized to calculate the specific surface area of the nanopowders.
利用静态表面吸附仪依据BET多层吸附原理,在液氮温度下(78K)和气体饱和蒸气压力范围内测试样品对N_2的吸附-脱附等温线,用图解法根据吸附等温线求出单层吸附容量,由BET吸附公式计算出纳米粉末比表面积。
Coal fly ash can be converted into the intermediate product of zeolite by controlling reaction condition of alkaline treatment. The phase,particle morphology and properties of as-synthesized aluminosilicate intermediate are characterized by XRD,FE-SEM and absorption-desorption process. The activity experiment determined by Uv-vis spectra indicates that the aluminosilicate intermediate has an excellent property for the elimination of cationic dyes in solution.
本文以热电厂粉煤灰为原料,通过控制碱处理条件合成沸石中间体,利用XRD、FE-SEM和吸附-脱附过程对物相、粒子的形貌以及材料的性质进行表征,吸附实验表明所合成沸石中间体对阳离子染料有明显的脱附作用.
The Nitrogen absorption-desorption isotherm of the samples is measured by volumetric absorption analyzer,and the specific surface area and average particle diameter of the sample are calculated from the BET academic model.
采用表面吸附仪测定样品的N2吸附-脱附等温线,并由BET理论模型计算出样品的比表面积和颗粒粒度。
The synthesized samples were characterized by XRD, TEM, SEM, N2 adsorption-desorption isotherm and energy dispersive spectroscopy.
通过X射线衍射(XRD),透射电子显微镜(TEM),扫描电子显微镜(SEM),N2吸附-脱附和电子能谱(EDS)对样品进行了表征.
The as-prepared samples were characterized by scanning electron microscope (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and nitrogen adsorption-desorption isotherm measurement.
对样品进行了扫描电子显微镜(SEM),透射电子显微镜(TEM),X射线衍射(XRD)和氮气吸附-脱附实验表征.
The Ti-HMS samples were characterized by thermogravimetric and differential thermal analysis, powder X-ray diffraction, N_2 adsorption-desorption isotherm, diffuse reflectance UV-visible spectroscopy, and Fourier transform infrared spectroscopy. The catalytic performance of the Ti-HMS samples for oxidation of 4-tert-butyltoluene with aqueous H_2O_2 was tested under the mild conditions.
合成Ti-HMS用热重-差热分析、X射线粉末衍射、N2吸附-脱附等温线、漫反射紫外可见光谱和傅里叶变换红外光谱进行了表征,并在温和反应条件下考察了Ti-HMS对过氧化氢液相氧化对叔丁基甲苯的催化性能.
BET measurement indicate that N2 adsorption-desorption isotherm curves of the Ti-PILCs are II isotherms overlapping with B adsorption loop-line, which suggests that the pore structure of the Ti-PILCs mainly consists of uniform parallel plates and plate-typed capillary pores with one closed end and wide pore distribution. That is the typical characteristic of pillared interlayered catalyst.
Ti-PILC的N_2等温吸附-脱附曲线的形状都是Ⅱ型等温线和B类吸附回线重叠的结果,说明Ti-PILC的孔结构主要以较均一的平行板和一端几乎封闭且孔径变化范围较大的板状毛细孔为主,这是层柱型催化剂的典型特征;
With organic silica being used as silicon source,Si-MCM-41 is thermally synthesized by using base water,. The effects of crystallization time and template agent on the mesoporous structure of it are studied by means of N_2 adsorption-desorption isotherm analysis and XRD measurement,the results show the pH of the reaction system must be adjusted during crystallization so that the hexagonal phase can grow and become more regular with the increase of crystallization time.
以有机硅为硅源,采用碱性水热合成制备Si-MCM-41,借助XRD,N2吸附-脱附表征手段系统研究晶化时间、模板剂对其长程有序结构的影响. 结果表明:晶化过程中必须调节体系的pH,样品的六方晶相才会随晶化时间的增长而不断地生长和完善.
The material was characterized by XRD, IR, MAS NMR, SEM, NH3-TPD and N2 adsorption-desorption isotherms.
采用XRD、IR、MAS NMR、SEM、NH3-TPD和N2的吸附-脱附等温线等手段,对合成样品进行了一系列的表征。
The synthesized mate- rial was characterized by XRD, N2 adsorption-desorption isotherms, 29Si and 31P MAS NMR.
通过XRD,N2吸附-脱附,29SiMASNMR和31PMASNMR等手段对样品进行了表征.
TEM, XRD, N2 adsorption-desorption isotherms and FT-IR spectra were used for characterization.
通过XRD,TEM,FT-IR,N2吸附-脱附表征,发现该微球由ZnS纳米颗粒组成,ZnS纳米颗粒尺寸为6~7
DTA, XRD, FTIR, XPS and N2 adsorption-desorption isotherms were employed to characterize the synthesized materials.
用DTA、 XRD、FTIR、XPS和氮气吸附-脱附曲线等手段表征了合成的材料.
The measurements of N2 adsorption-desorption isotherms yield the surface area of the hollow spheres assembled of silica with a diameter of 10 or 20nm are 282.71m2·g-1 and 158.17m2·g-1, and the average pore diameters of them are 11nm and 15nm respectively. The permeability and sustained release property of hollow silica sphere were also confirmed by the experiments of dye loaded and released.
N2等温吸附-脱附实验测得用10和20nm的二氧化硅组装成的空腔二氧化硅微球的平均孔径和比表面积分别为11nm、282.71m2·g-1和15nm、158.17m2·g-1. 染料的装载和释放实验分别验证了空腔二氧化硅微球的腔壁具有可渗透性和缓释性.
查询“吸附-脱附”译词为用户自定义的双语例句&&&&我想查看译文中含有:的双语例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& The coke formation on butadiene catalyst was studied in a flow system by means of carbon-14-labelled compounds. Analysis of labelled ethanol desorbed at different temperatures indicated that the adsorbed ethanol did not take part in the coke formation. A study on the exchange reactions between ethanol and the labelled carbonaceous deposit formed on the catalyst at normal operating conditions revealed that the coke for the greater part was neither free carbon deposit nor condensed aromatics. The adsorption, desorption... The coke formation on butadiene catalyst was studied in a flow system by means of carbon-14-labelled compounds. Analysis of labelled ethanol desorbed at different temperatures indicated that the adsorbed ethanol did not take part in the coke formation. A study on the exchange reactions between ethanol and the labelled carbonaceous deposit formed on the catalyst at normal operating conditions revealed that the coke for the greater part was neither free carbon deposit nor condensed aromatics. The adsorption, desorption and exchange reactions of labelled acetaldehyde proved that a certain portion of the latter could still remain adsorbed on the catalyst surface even at a temperature as high as 400℃. From these results it is proposed that ethanol in contact with the catalyst surface forms at first adsorbed acetaldehyde, of which a part may transform into butadiene and another part may condense to a carbonaceous deposit on the catalyst surface directly or through the gas phase, as the reaction proceeds.在流动系统中,用碳-14标记化合物研究了丁二烯催化剂上的结焦过程.吸附标记乙醇的升温脱附产物的分析结果表明,吸附态乙醇并不结焦.非标记乙醇与催化剂上的标记焦炭间的交换反应的实验结果,证明在正常反应条件下最初结在催化剂上的焦炭,大部分既不是游离碳,也不是稠环结构.标记乙醛的吸附、脱附和交换实验证明,即使在高达400℃下,催化剂表面上仍可能存有一小部分吸附态的乙醛.由上述结果可以认为,乙醇在催化剂表面上首先生成吸附态乙醛,这种乙醛的一部分转化为丁二烯,一部分随反应时间延长直接地或通过气相逐步缩合成焦炭. The effects of heat-treatment on the surface and pore structure of silica gels heated in the range of 200-1100°C have been studied. We have measured the specific surface area by means of B. E. T. nitrogen adsorption method, and the adsorption-desorption isotherms of ethyl alcohol at 25°C by gravimetric method. Moreover, we have calculated the pore volume and the pore-size distributions of silica gels. After heat-treated at 950°C, the specific surface area and pore volume of the purified silica gels are decreased... The effects of heat-treatment on the surface and pore structure of silica gels heated in the range of 200-1100°C have been studied. We have measured the specific surface area by means of B. E. T. nitrogen adsorption method, and the adsorption-desorption isotherms of ethyl alcohol at 25°C by gravimetric method. Moreover, we have calculated the pore volume and the pore-size distributions of silica gels. After heat-treated at 950°C, the specific surface area and pore volume of the purified silica gels are decreased only 25% and 21% respectively, while those of unpurified gels are decreased more than 95%. From these results, it is concluded that the effect of impu- rity is to decrease the thermal stability of silica gel. After heat-treated at various temperatures (200-1100°C), the purified silica gels are studied by infrared spectroscopy in the cm-1 region (paraffin oil is used as mulling agent). The results show that the absorption bands at 3720cm-1 (isolated single hydroxyls) are decreased slightly when the temperature is raised from 200 to 950°C, and disappear completely when the temperature is raised to 1100°C. However, the absorption bands in cm-1 (associated hydroxyls) are decreased much more rapidly than band at 3720cm-1. The x-ray diffraction shows that only the purified silica gel heated at 1100°C shows the diffraction lines of β-tridymite. When the heating temperature is lower than 950°C,the sintering and thus the decreasing of free hydroxyls are only gentle. However, as the heating temperature is reached to 1100°C,the surface area and pore volume of silica gel decrease markedly, This shows the sintering has occured vigorously, and thus the free hydroxyls may be eliminated almost completely. It is interested to note that after heated at 1100°C the purified silica gel still has quite large surface area of 95m2/g and pore volume of 0.15cm3/g. However, theinfrared spectra show that the surface of this gel is covered bygroups only. This probably suggests that on the remained surface the original free hydroxyls through surface migration may be approached each other under higher temperature and then eliminated by dehydration.本文研究了热处理(200—1100℃)对自制的一种硅胶的表面结构的影响;测定了BET比表面(低温氮气吸附法)、孔体积、乙醇的吸附-脱附等温线,计算了孔径分布,求得了最可几Kelvin半径。结果表明,杂质的存在明显地降低硅胶的热稳定性。在发生熔结以前,孔径分布基本不变,当发生熔结时,孔半径显著减小。红外光谱的测定表明,随着热处理温度的升高,硅胶表面缔合羟基(~3500cm~(-1))迅速减少,在~800°时已去除殆尽,而自由羟基(~3720cm~(-1))减少缓慢,在1100℃时才迅速消失。X-射线衍射图表明,发生熔结后的硅胶显示有β-鳞石英的衍射峰,说明出现了有序晶相。对上述实验结果,文中作了初步的解释。 Several Pt-Sn/Al2O3 catalysts along with Pt/Al2O3 and Sn/Al2O3 catalysts as reference were studied by means of TPD, oxygen chemisorption, and pulse reaction. Both the peak area and Tm value of TPD spectra of Pt-Sn/Al2O3, though varied somewhat with the method of preparation, were in general smaller than those of Pt/Al2O3, while Sn/Al2O3 showed no hydrogen chemisorption at all. Their activities for hydrogenolysis of cyclopentane followed the same order.Based on Gibbs' equation and the data of the surface and... Several Pt-Sn/Al2O3 catalysts along with Pt/Al2O3 and Sn/Al2O3 catalysts as reference were studied by means of TPD, oxygen chemisorption, and pulse reaction. Both the peak area and Tm value of TPD spectra of Pt-Sn/Al2O3, though varied somewhat with the method of preparation, were in general smaller than those of Pt/Al2O3, while Sn/Al2O3 showed no hydrogen chemisorption at all. Their activities for hydrogenolysis of cyclopentane followed the same order.Based on Gibbs' equation and the data of the surface and bulk compositions of Pt3Sn, the adsorption(desorption) capacity of unsupported Pt and alloy Pt-Sn reported by W. M. H. Sachtler, the values of Sn shielded on Pt have been estimated. Comparing them with the TPD spectra area of supported catalysts, a certain relationship between the supported catalysts and the unsupported ones was established.Accordingly, the models of active center (cluster) for different catalysts were suggested. Based on the stoichiometry of Pt-O, Sn-O at room temperature and 1/2PtO, 1/2PtO2, SnO2 from room temperature to 500℃, the Pt/Sn atomic ratios were calculated, and they were the same as the models of bimetallic active center derived from TPD.It is concluded that bimetallic active ensembles are formed by Sn and Pt in Pt-Sn/Al2O3, Sn plays the role of decreasing the metallic function of Pt, and lowers its adsorption power (or capacity) and relative catalytic activity.对几种Pt—Sn/Al_2O_3催化剂及参比样Pt/Al_2O_3,Sn/Al_2O_3催化剂进行了TPD,化学吸附氧和脉冲反应的考察。所有Pt—Sn/Al_2O_3的TPD谱图面积和Tm值都比Pt/Al_2O_3的小。Sn/Al_2O_3无信号,即不吸H_2。它们在环戊烷的氢解反应中的活性也是这样的顺序。应用Sachtler的Pt—Sn合金催化剂的吸附(脱附)数据,求得Sn对Pt的屏蔽值。由此对各Pt—Sn/Al_2O_3催化剂的活性中心模型进行了讨论。结果说明Pt—Sn/Al_2O_3催化剂中的Sn与Pt组成了双金属(原子集团)活性中心,Sn起着削弱Pt金属功能的作用。&nbsp&&&&&相关查询
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声明:本文由入驻搜狐公众平台的作者撰写,除搜狐官方账号外,观点仅代表作者本人,不代表搜狐立场。
  点击上方“材料人”即可订阅哦!
  材料表面通常性质突变,反应进行的首选场所,因而在材料学的研究中绝对不容小觑。为了进行统一比较,通常要把表面这一广度量转化为比表面这一强度量来比较。纳米材料炒了如此多年仍然是学界宠儿,其区别与宏观材料最大的特点便是巨大的表面积,也正是这一特点使其可以在催化,吸附,存储,反应等各大研究领域大展拳脚。
  谈到科研便离不开测试,不少同学会遇到比表面积测试和表述方面的问题,尤其是在写英文论文的时候。为此,我们特意为大家开一剂大补药――讲讲顶级期刊中BET比表面积分析测试法的描述和应用。
  I “bet” thses knowledge about BET is meaningful for you
  1.什么是比表面积测试?2.结合吸附等温线的BET分析?3.歪果仁的BET世界你要懂。
  1.比表面积测试(BET)
  BET测试理论是根据希朗诺尔、埃米特和泰勒三人提出的多分子层吸附模型,并推导出单层吸附量Vm与多层吸附量V间的关系方程。
  P: 氮气分压
  P0: 吸附温度下,氮气的饱和蒸汽压
  V: 样品表面氮气的实际吸附量
  Vm: 氮气单层饱和吸附量
  C : 与样品吸附能力相关的常数
  操作过程是通过实测3-5组被测样品在不同氮气分压下多层吸附量,以P/P0为X轴,P/V(P0-P)为Y轴,由BET方程做图进行线性拟合,得到直线的斜率和截距,从而求得Vm值计算出被测样品比表面积。
  2.结合吸附等温线的BET分析
  如上一小节中提到的,做BET分析之前,一定要先做氮气吸附等温测试,然后根据获得的压强以及吸附量的数据结合BET公式,进行分析。为此了解基本的吸附等温曲线是极其必要的。
BET方法仅适用于P/P0=0.05―0.35之间的也就是Ⅱ和Ⅳ吸附等温曲线
  3.歪果仁的世界你要懂
  1. Nature Communication
  此文探讨了使用介孔壁自组装合成空心球共价有机框架DhaTab的方法。合成的空心球具有高的空隙率,而且由于分子间氢键的作用具有良好结晶程度和化学稳定性。有望应用于生物制药研究。
  图(d)为DhaTab水洗处理前后以及酸处理前后的N2吸附等温线对比图。蓝色,香槟色以及红色分别代表处理前,水洗处理后以及酸处理后的样品。(g)图记录的则是不同合成时间样品的N2吸附等温线图。
  氮气吸附等温的测试用来评估材料的孔隙率COF-DhaTab表现出典型的可逆吸附,意味着材料内部以介孔结构为主。通过BET模型计算出材料的比表面积为1,480m 2g -1,其巨大的比表面积来源于强烈的分子内氢键的作用,在确保结构稳定的同时提升了2维层的平面化程度,这些都将帮助提升COF的结构有序性,从而增大活性表面积。DhaBad的表面积同样由BET模型计算的出其均值在447 m 2g -1
  图(d)为DhaTab在胰岛素填充前后的N2吸附等问对比图。红色为填充前的,蓝色为填充后的。
  填充后的表面积严重减少(从1,480 到 400m 2g -1)说明了,DhaTab材料的介孔结构有效的固定了胰岛素。
  原文链接:Self-templated chemically stable hollow spherical covalent organic framework
  2. JACS
  本文通过控制几何构造方式合成了17种比表面积430?3624 m 2g -1不等的新型的多孔共价有机物。并对其进行了比较研究。并创新性的完成了三种不同官能团在多孔共价有机物中的整合。开辟了催化剂设计,功能传感,气体收集的新思路。
  图组为298K下预合成的多块COP的性质以及其气体吸附性能。(a)为COP的系列BET表面积计算结果比较。(b)为COP的系列孔体积。(c)为孔隙体积和表面积比值对比(d)为非功能化的COP的CO2的吸收情况。(e)为功能化的CO2的吸收情况。(f)为功能化COP的N2吸收情况。实心以及开放标志分别代表吸脱附的量。(g)BET表面积与二氧化碳存储能力比值 (h)孔隙体积和CO2存储能力比值。验证官能团是否有效的方法是进行CO2以及N2的吸附测试。测试结果如图3f。
  通常高的比表面积以及大的孔体积对应高的气体吸收量,通过控制长度以及几何构造方式,合成了不同比表面积的多孔材料。其分布值如图3a,孔体积情况分布如3b,并发现其孔体积和表面积存在线性关系。
  原文链接:Systematic Tuning and Multifunctionalization of Covalent Organic Polymers for Enhanced Carbon Capture.
  3. JACS
  表面积的大小是衡量新型多孔材料的重要性质之一。BET方法是学界常用的表面积测试方法,但其理论假设基于平面多层吸附,在崎岖表面的微孔材料表面及检测上还有待探究。本文通过理论模拟和实验对比检验了BET表面积测试方法在新型的金属有机盐多孔材料测试中的可靠性。
上图为三种金属有机盐材料的模拟氮气吸附等温图
  随着链节长度的增加单位质量的空隙率也更高。与此同时材料的饱和吸附能力也有所提升。多数实验关注饱和区的吸附情况使其很难预言吸附的进程,低压区的吸附实验将成为未来研究的重点。
  这是一篇比较早的文章,系统性的叙述了BET测试法在MOF中的应用,全篇都贯穿了对BET方法的理论假设分析以及各种相关实验结论。强烈推荐专门做表面积分析尤其是MOF的同学作为前期的综述作为阅读。
  原文链接:Applicability of the BET method for determining surface areas of microporous metal-organic frameworks
  材料人英文课堂开班啦!
  加粗部分可替换,有很多句子可以直接使用。句型结构在括号里给予了说明。
  例句1:
  Gas adsorption. (一般BET的表述会被放在气体吸附试验中进行讨论)
  The N2 adsorption was carried out for the activated COF-DhaTab samplein order to evaluate the permanent porosity. COF-DhaTab exhibits reversible type IV isotherm(指明吸附等温线的属性),which is one of the main characteristics of mesoporous materials(使用非限制性定语从句,将测试曲线属性和材料结构性质进行关联). The surface area of COF-DhaTab was calculated to be 1480 m 2g -1 using(非谓语进行表面积测算的描述) the BrunauerCEmmettCTeller (BET) model
  carry out:实施(实验)
  evaluate:测算,测定,评价,后面加广度物理量和强度物理量都可以,此处是测孔隙率,算是BET方法的通用。
  exhibit:表现,展现,一般在描述材料性质时常用,可以替换show, represent, address,deliver等词汇
  例句2:
  An instructive first check to gain insights on the suitability of these functionalizedmultiblock COPsfor their application in carbon captureis to estimate their CO2 /N2 selectivities. For this reason, we also measured the N2 adsorption isotherms at 298 K (Figure 3f). Likewise, N2 adsorption capacity largely
  correlates with surface area and pore volume.
  gain insight on:对某事有所了解,相当于know, learn但是更地道更高级
  estimate:测算,与前面的evaluate用法相同
  correlates with:与什么相关,相当于related to/with,correspond to
  likewise:正如预期的一样,引出与实验结论相符合的理论基础。也可以单独作为插入语使用。
  例句3:
  Increasing linker lengths correspond to more open structures with larger pore volumes per mass, and Figure 2a shows that, as expected,(插入语部分,与已有结论相一致时可以加入) the adsorption saturation capacities increase with increasing (常用描述变化趋势的表达)pore volume. The most striking feature of these isotherms is an unusual step, which can be seen more clearly in Figure 2b.Eddaoudi et al. 26 have reported experimental isotherms fornitrogen in IRMOF-12 and IRMOF-14 that show a similar step,but they do not comment on it(定从对实验结论进行描述)(整个是一个非限制性定语从句描述的是一个非常转折).
  欢迎优秀硕、博士生加入材料人编辑部学术干货小组,一起传播学术知识,展现你的才华,助力材料科研,优秀稿件一经录用,我们会奉上稿酬,赶快私信管理员负责人“淡年华(QQ:)”报名吧!
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