零价,zero-valence
1)zero-valence零价
1.The synthesized mesoporous cobalt-silica composite Co-MCM-41 with zero-valence Co embedded in the framework was characterised by low-angle X-ray diffraction (XRD), N2 adsorption-desorption and scanning electron microscopy (SEM)/transmission electron microscopy (TEM).本文以十六烷基三甲基溴化铵(CTAB)为模板剂,以正硅酸乙酯(TEOS)为硅源,以Co(NO3)2为钴源,采用溶胶-凝胶的方法,在室温下合成了钴离子掺杂的介孔Co-MCM-41复合材料,然后以H2为还原剂,采用欠温还原的方法,将所制得的介孔复合材料在高温下还原得到零价钴嵌入分子筛骨架的介孔Co0-MCM-41复合材料。
英文短句/例句

1.The Zero-Valence Verb in a Language: from the Perspective of Logical Valence;从逻辑配价看语言中的“零价动词”
2.a retail dealer [price, store]零售商 [价格,店]
3.Are these prices wholesale or retail?这是批发价还是零售价?
4.The retail dealer buys at wholesale and sells at retail.零售商批发购进货物, 以零售价卖出。
5.general retail price index社会零售物价总指数
6.These shoes retail at $$10.这鞋零售价每双10美元。
7.I'll sell it to you retail only.我只按照零售价卖给你。
8.Actual retail prices may vary.实际零售价可能有变动。
9.Cut down the growth margin of retail commodity prices降低零售商品物价涨幅
10.These books retailed at a dollar.这些书零售价为一元。
11.Retail Price Index by Category商品零售价格分类指数
12.retail price index of state commercial enterprises国营商业零售物价指数
13.retail price index of industrial products工业品零售价格指数
14.Study on the Price Competition between E-commerce Retailer and Conventional Retailer;电子商务零售商与传统零售商的价格竞争研究
15.How the Powers of Retailers Influence the Channel Prices and the Choice of Retailers;零售商力量对渠道价格影响及零售商选择
16.One that discounts, as a person who runs a discount store or business.廉价零售商,如经营廉价商店者
17.Constructing Retail Synthetic Value Chain on the Basis of Customer Value;基于顾客价值构建零售业复合价值链
18.These biros retail at/for 70p.这些圆珠笔零售价为70便士.
相关短句/例句

zero-valent iron零价铁
1.Discussion on the applicability of permeable reactive(zero-valent iron) barriers to the remediation of groundwater around a uranium tailings site;用零价铁渗滤墙技术修复我国铀尾矿地下水的探讨
2.Mechanisms and influencing factors of the deoxidization of nitrobenzene by zero-valent iron;零价铁还原硝基苯的反应机理及影响因素
3.Reduction action of zero-valent iron on nitrobenzene compounds in soils.;零价铁对土壤中硝基苯类化合物的还原作用
3)zero-valent zinc零价锌
1.The batch experiment of reductive degradation of perchloroethylene(PCE)using zero-valent zinc(Zn(0))was conducted,meanwhile the mathematical model of multi-level chain and parallel reaction was established assuming each reaction as pseudo first order reaction.对零价锌(Zn(0))降解四氯乙烯(PCE)进行批实验,在假设各化学反应符合准一级反应的前提下,建立了多级链式平行反应数学模型,并使用混合函数遗传算法进行了动力学参数的反演。
2.The affecting factors of reduction of NDMA by zero-valent zinc were investigated.本文采用零价锌还原降解水中NDMA,考察各种因素对于零价锌还原降解NDMA的影响,分析确定其降解产物,并由此推测出零价锌还原降解NDMA的机理,从而为进一步的研究和工程应用,提供数据支持。
4)zero-valent iron (ZVI)零价铁
1.At ambient temperature and pressure, the natural and the enhanced reductive dechlorination of 4-chlorophenol (4-CP) in soils with zero-valent iron (ZVI) were investigated in the laboratory with isothermal incubation and gas chromatography mass spectrometry (GC-MS) as the primary analytical method.以恒温培养为方法,GC-MS为检测手段,研究了在常温常压下土壤中4-氯苯酚(4-CP)在零价铁作用下的还原脱氯反应。
2.Laboratory batch experiments were carried out to determine the effectiveness of zero-valent iron (ZVI) on the remediation of Cr(Ⅵ)-contaminated sediments.采用实验室批次实验方法,研究了零价铁对Cr(Ⅵ)模拟污染底泥的修复作用。
3.The remediation of 1,3-dichlorobenzene contaminated sediments using zero-valent iron (ZVI) was studied, and its effect on the mi- crobial community structures were monitored by using 16S rDNA PCR-denaturing gradient gel electrophoresis (DGGE) and phospholipids fatty acid (PLFA) analysis.通过采用零价铁修复1,3-二氯苯污染底泥,结合变性梯度凝胶电泳(DGGE)和磷脂脂肪酸(PLFA)技术分析了零价铁修复对底泥微生物群落结构的影响。
5)zero-valent metal零价金属
1.Reductive dechlorination of polychlorinated biphenyls by zero-valent metal;零价金属降解多氯联苯(PCBs)
2.Study on Reduction Transformation of Nitroaromatic Pollutants by Zero-valent Metal零价金属还原转化硝基芳香烃污染物研究进展
3.Zero-valent metals can be used to treat many kinds of pollutants including Organohalides,heavy metal,nitro-aromatic compounds,azo dye,perchloride and nitrate etc.介绍了零价金属在处理环境污染物中的具体应用,包括卤代有机物、重金属、硝基芳香族化合物、偶氮染料、高氯酸盐以及硝酸盐等,指出零价金属可以通过还原和混凝吸附等作用有效地治理环境污染物,并分析了零价金属处理污染物的特点和应用前景。
6)zero-valent iron barrier零价铁墙
延伸阅读

零价镍催化剂  又称裸镍或配体自由镍。为镍的π烯烃络合物。1960年由G.维尔克合成。这些络合物很活泼,其配位体容易被其他烃类配位体所置换,特别是双烯和三烯烃可以彼此互换。例如烯丙基的镍络合物Ni(π-C3H5)2、1,5-环辛二烯的镍络合物Ni(COD)2(COD为环辛二烯)、反-1,5,9-环十二碳三烯的镍络合物Ni(CDT)(CDT为环十二碳三烯)都很活泼,可以作为合成这类烯的催化剂(见催化),因而获得"零价镍"的名称。从形式上看,零价镍意味着镍的氧化态为零,在Ni(π─C3H5)2、Ni(COD)2和Ni(CDT)分子中(见图),镍没有被烯配位体氧化或还原,但两个COD有八个电子进入镍的sp3杂化轨道,使镍的有效原子序数达到稳定的电子构型。一个 CDT提供了六个电子进入镍的sp2杂化轨道,使镍的有效原子序数达到16。    这类催化剂是有色晶体,对空气和水很敏感,但是可以分离得到。零价镍的催化作用可能是由于镍原子从环烯络合物消除时保持了它的"裸镍"特性,继续能与烯烃或膦络合。在应用过程中,可以在系统中就近合成Ni(COD)2和Ni(CDT),方法是由乙酰基丙酮镍加还原剂和三苯基膦,与1,3-丁二烯进行反应,首先可能生成辛二烯二基镍(Ⅱ)(端头为两个烯丙基的八碳烯C8H14),后者与膦配位,消除膦镍络合物,关环得1,5-环辛二烯。如果不加膦配位体,则辛二烯二基镍与过量1,3-丁二烯络合,消去镍后即得反-1,5,9-环十二碳三烯。         用零价镍作催化剂,1,3-丁二烯还能环化,三聚得反-1,反-5,顺-9-环十二碳三烯。在1,3-丁二烯环化三聚的同时,还获得1,2-二乙烯基环丁烷、4-乙烯基环己烯、3-乙烯基-1-亚甲基环戊烷、反-1,顺-5,顺-9-环十二碳三烯。使乙烯与1,3-丁二烯共环聚,还获得顺-1,反-5-环癸二烯。有效地控制有机镍、膦和丁二烯的比例,可以得到不同环聚物中某一个最佳的产率。见图。      参考书目   P.W.Jolly and G. Wilke, The Organic Chemistry of Nickel,Academic Press, New York, 1974.