{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"近年来,有关N-杂环卡宾(NHC)的合成、催化性能及其应用得到了快速发展,特别是在催化<span style=\"color:red\">选择性</span>有机反应领域,NHC类催化剂显示出催化效率高、<span style=\"color:red\">选择性</span>好及性能优异等特点,而引起人们极大的关注.本文从区域<span style=\"color:red\">选择性</span>、<span style=\"color:red\">顺反异构</span><span style=\"color:red\">选择性</span>及手<span style=\"color:red\">性</span><span style=\"color:red\">选择性</span>等方面综述了NHC催化<span style=\"color:red\">选择性</span>有机反应的最新进展,并予以了展望.","authors":[{"authorName":"蔡小华","id":"aa8d902c-ebf0-45de-b3eb-e3864f11ee0a","originalAuthorName":"蔡小华"},{"authorName":"谢兵","id":"e8981961-c15e-431d-8937-27116f575942","originalAuthorName":"谢兵"}],"doi":"10.3724/SP.J.1095.2013.20306","fpage":"123","id":"6ca2b55a-8523-405c-89ef-3275e6a1ee55","issue":"2","journal":{"abbrevTitle":"YYHX","coverImgSrc":"journal/img/cover/YYHX.jpg","id":"73","issnPpub":"1000-0518","publisherId":"YYHX","title":"应用化学"},"keywords":[{"id":"e08bcf1e-7fbb-4221-9da4-61cf798ddd3f","keyword":"N-杂环卡宾","originalKeyword":"N-杂环卡宾"},{"id":"e79792ef-5aee-44d2-bdb8-6d7a11bbae18","keyword":"<span style=\"color:red\">选择性</span>有机反应","originalKeyword":"选择性有机反应"},{"id":"08d5bbf1-4dfe-4b3e-9013-57b88b9a4069","keyword":"区域<span style=\"color:red\">选择性</span>","originalKeyword":"区域选择性"},{"id":"bbc7d992-f0c9-47d5-8223-11d33a23b82d","keyword":"<span style=\"color:red\">顺反异构</span><span style=\"color:red\">选择性</span>","originalKeyword":"顺反异构选择性"},{"id":"17dfd70a-6de9-4ff6-aacb-6dbb429423ef","keyword":"手<span style=\"color:red\">性</span><span style=\"color:red\">选择性</span>","originalKeyword":"手性选择性"}],"language":"zh","publisherId":"yyhx201302001","title":"N-杂环卡宾催化<span style=\"color:red\">选择性</span>有机反应的新进展","volume":"30","year":"2013"},{"abstractinfo":"在Y分子筛上浸渍0.1 wt% Pd和0.1–0.5 wt% Ni,用X射线衍射表征了该催化剂的结晶度,用透射电镜测得平均金属粒径.催化剂中Pd和Ni的化学态用X射线光电子能谱测定,其酸性则用氨-程序升温脱附进行了表征,发现一些酸位被Ni2+离子交换.采用程序升温还原表征了HY分子筛负载的Pd, Ni和Pd-Ni催化剂的还原性能.正癸烷加氢<span style=\"color:red\">异构</span>化反应在200–450 oC和1 atm条件下进行.结果发现,当0.1 wt% Pd/HY中Ni添加量增至0.3 wt%时,正癸烷转化率和<span style=\"color:red\">异构</span>化<span style=\"color:red\">选择性</span>增加.单支链和双支链<span style=\"color:red\">异构</span>体<span style=\"color:red\">选择性</span>的增加表明该反应遵循质子化环丙烷中间体机理. Ni添加量超过阈值导致活性和<span style=\"color:red\">异构</span>化<span style=\"color:red\">选择性</span>急剧下降.综上可见,双金属催化剂更有利于<span style=\"color:red\">选择性</span>生成双支链<span style=\"color:red\">异构</span>体,其辛烷值更高.","authors":[{"authorName":"Dhanapalan Karthikeyan","id":"00030ffb-e73a-4f3d-a482-2bff8af75cd2","originalAuthorName":"Dhanapalan Karthikeyan"},{"authorName":"Raji Atchudan","id":"7637df19-727f-413c-8fb7-915e469f738f","originalAuthorName":"Raji Atchudan"},{"authorName":"Raji Sivakumar","id":"17d0a720-c30e-4821-bf2b-810eee302219","originalAuthorName":"Raji Sivakumar"}],"doi":"10.1016/S1872-2067(16)62507-X","fpage":"1907","id":"68978e25-55a0-4e4c-baf1-eda2a0163045","issue":"11","journal":{"abbrevTitle":"CHXB","coverImgSrc":"journal/img/cover/CHXB.jpg","id":"18","issnPpub":"0253-9837","publisherId":"CHXB","title":"催化学报   "},"keywords":[{"id":"56970b01-83f5-4ff8-8960-1efb1093a4c1","keyword":"加氢<span style=\"color:red\">异构</span>化","originalKeyword":"加氢异构化"},{"id":"6f2472c4-d0f9-4d6d-8250-899cabae8fdd","keyword":"正癸烷","originalKeyword":"正癸烷"},{"id":"85c0a0dd-baec-4675-bf28-77557e35a131","keyword":"Y分子筛","originalKeyword":"Y分子筛"},{"id":"50326569-395a-4372-81da-068828f462f5","keyword":"钯","originalKeyword":"钯"},{"id":"56598a9a-85b6-4975-876e-0fa1eb3ac1db","keyword":"浸渍方法","originalKeyword":"浸渍方法"}],"language":"zh","publisherId":"cuihuaxb201611012","title":"金属含量对Ni-Pd/H-Y上正癸烷加氢<span style=\"color:red\">异构</span>化反应活性和产物<span style=\"color:red\">选择性</span>的影响","volume":"37","year":"2016"},{"abstractinfo":"手<span style=\"color:red\">性</span>现象在自然界中广泛存在，手<span style=\"color:red\">性</span>分离在药物研发、农用化学、药理学、环境科学和生物学等诸多领域具有重要意义。手<span style=\"color:red\">性</span>金属有机骨架化合物材料（ MOFs）是一类具有特殊拓扑结构和可设计的孔道结构的新型多孔材料，加之其比表面积高、孔隙率大、热稳定性良好和溶剂耐受<span style=\"color:red\">性</span>好等特性，使得 MOFs 在分析化学领域的应用与研究日益深入。本文简要综述了手<span style=\"color:red\">性</span> MOFs的合成方法，着重讨论了手<span style=\"color:red\">性</span> MOFs在对映<span style=\"color:red\">异构</span>体<span style=\"color:red\">选择性</span>分离方面的应用及相关机理，最后对该类材料的发展前景做了展望。","authors":[{"authorName":"祁晓月","id":"7310b185-c878-4571-8d81-0110c8cb7f31","originalAuthorName":"祁晓月"},{"authorName":"李先江","id":"f56a1beb-ae7d-42e9-8564-260b0cf1eb84","originalAuthorName":"李先江"},{"authorName":"白玉","id":"b6a7a845-732b-4503-949f-12b4ae606e41","originalAuthorName":"白玉"},{"authorName":"刘虎威","id":"07b0b170-d1da-4dd5-8903-1cc8fc514307","originalAuthorName":"刘虎威"}],"doi":"10.3724/SP.J.1123.2015.10005","fpage":"10","id":"60857a48-a111-4f21-b6a8-0bbb43559767","issue":"1","journal":{"abbrevTitle":"SP","coverImgSrc":"journal/img/cover/SP.jpg","id":"58","issnPpub":"1000-8713","publisherId":"SP","title":"色谱 "},"keywords":[{"id":"1cc14160-10c5-4729-87eb-ce61e04432c8","keyword":"金属有机骨架化合物","originalKeyword":"金属有机骨架化合物"},{"id":"4473552e-4fad-4db5-9c6e-4349ff388289","keyword":"手<span style=\"color:red\">性</span>分离","originalKeyword":"手性分离"},{"id":"618c62a6-afc5-4e46-b303-85da3ce49db3","keyword":"对映<span style=\"color:red\">异构</span>体","originalKeyword":"对映异构体"},{"id":"6745c5c6-cb70-4846-852e-05189cc3f359","keyword":"<span style=\"color:red\">选择性</span>萃取","originalKeyword":"选择性萃取"},{"id":"c29783a0-569e-482d-8f21-a6d62823ec11","keyword":"综述","originalKeyword":"综述"}],"language":"zh","publisherId":"sp201601004","title":"手<span style=\"color:red\">性</span>金属有机骨架材料的合成及其在对映<span style=\"color:red\">异构</span>体<span style=\"color:red\">选择性</span>分离中的应用","volume":"","year":"2016"},{"abstractinfo":"偶氮基团(一N=N一)在适当波长光的照射下,会发生可逆的<span style=\"color:red\">顺反异构</span>反应,这一反应中偶氮分子构型上的变化会影响到蓝相液晶中脆弱的晶格结构,并造成晶格参数的变化,进而影响到<span style=\"color:red\">选择性</span>反射波长的变化,甚至有时会造成蓝相相态的消失.文章合成并将几种偶氮化合物掺入手性向列相液晶中,再变温至BPI,对比了这几种偶氮化合物对蓝相液晶<span style=\"color:red\">选择性</span>反射波长的影响,从而得出更有实际使用价值的偶氮分子,在此基础上还从分子结构角度分析了产生差异的原因,为进一步的改进工作提供了方向.","authors":[{"authorName":"周路","id":"7a212c36-7964-43e7-8334-d7b4d437b9aa","originalAuthorName":"周路"},{"authorName":"张丹","id":"29024705-b10a-4b0c-b150-0028c2e4f5da","originalAuthorName":"张丹"},{"authorName":"郑致刚","id":"ce8393d9-5c7d-4054-a0fa-e0a13ec78586","originalAuthorName":"郑致刚"},{"authorName":"沈冬","id":"00711ae7-d420-417b-b6cf-555db90cfdce","originalAuthorName":"沈冬"},{"authorName":"包锡峰","id":"d39d8f04-1b54-4cb8-b906-453b094eac7f","originalAuthorName":"包锡峰"}],"doi":"10.3788/YJYXS20132801.0007","fpage":"7","id":"c0820a11-9378-474d-ad43-48e507d9e446","issue":"1","journal":{"abbrevTitle":"YJYXS","coverImgSrc":"journal/img/cover/YJYXS.jpg","id":"72","issnPpub":"1007-2780","publisherId":"YJYXS","title":"液晶与显示   "},"keywords":[{"id":"45719e8d-e1d9-4a5e-a698-1e6e1cc8b691","keyword":"偶氮","originalKeyword":"偶氮"},{"id":"66d267ee-ae15-48cc-b9b4-34a2a2c47389","keyword":"光致<span style=\"color:red\">异构</span>","originalKeyword":"光致异构"},{"id":"08876af6-da65-4e97-b448-0119fa0eb23a","keyword":"蓝相","originalKeyword":"蓝相"},{"id":"acddd6b0-82df-46bf-a819-581d8366fdb4","keyword":"<span style=\"color:red\">选择性</span>反射波长","originalKeyword":"选择性反射波长"}],"language":"zh","publisherId":"yjyxs201301002","title":"偶氮分子掺杂对蓝相液晶<span style=\"color:red\">选择性</span>反射波长的影响","volume":"28","year":"2013"},{"abstractinfo":"静电纺丝中的纳米纤维<span style=\"color:red\">选择性</span>沉积技术可提高材料的利用率,减少工序,降低成本.制作分别带圆、矩形和三角形孔三种不同形状的接地金属板作为收集板.实验结果表明:对于三种不同形状的孔,孔顶角(三角形和矩形)和孔周围的纳米纤维分布密度都比孔中间位置的大得多.这是由于喷射到收集板孔附近的带正电荷纳米纤维在孔周围不均匀电场作用下进行<span style=\"color:red\">选择性</span>沉积.在金属板上覆盖一层80微米厚塑料薄膜来沉积纳米纤维可得到同样的结果.该<span style=\"color:red\">选择性</span>沉积技术将为未来批量化纳米纤维喷射<span style=\"color:red\">选择性</span>沉积提供试验依据.","authors":[{"authorName":"吴德志","id":"3fe7e20d-195b-4cd4-89d8-7b705f8f92a3","originalAuthorName":"吴德志"},{"authorName":"郑高峰","id":"fb4ec646-ac99-4a42-9697-4805c3091872","originalAuthorName":"郑高峰"},{"authorName":"孙道恒","id":"a6e6f894-cc80-4c5d-be0d-0f918a342bcb","originalAuthorName":"孙道恒"}],"doi":"10.3969/j.issn.1007-4252.2008.02.049","fpage":"504","id":"d2bd11ca-5fc9-4171-9f2a-611674a4f75c","issue":"2","journal":{"abbrevTitle":"GNCLYQJXB","coverImgSrc":"journal/img/cover/GNCLYQJXB.jpg","id":"34","issnPpub":"1007-4252","publisherId":"GNCLYQJXB","title":"功能材料与器件学报   "},"keywords":[{"id":"7f347fab-95ec-4c55-b269-4b33dfdc151a","keyword":"纳米纤维","originalKeyword":"纳米纤维"},{"id":"6e131db1-0cfa-4eed-8866-8868ad4e961e","keyword":"静电纺丝","originalKeyword":"静电纺丝"},{"id":"7120a96e-239c-4d0f-995d-a269609a78a8","keyword":"<span style=\"color:red\">选择性</span>沉积","originalKeyword":"选择性沉积"}],"language":"zh","publisherId":"gnclyqjxb200802049","title":"纳米纤维<span style=\"color:red\">选择性</span>沉积","volume":"14","year":"2008"},{"abstractinfo":"采用恒电流E-t曲线与旋转盘环电极方法研究了α黄铜(Cu32Zn)在酸性Na2SO4和HNO3稀溶液中的阳极溶解行为,得到的典型E-t曲线上存在几个特征区,证明在较低电流密度条件下的初始阶段只存在Zn的<span style=\"color:red\">选择性</span>溶解。用恒电位法研究了Cu32Zn<span style=\"color:red\">选择性</span>溶解过程,得到了按抛物线衰减的暂态扩散曲线,由i-t-1/2直线关系求得了不同介质中Cu32Zn中Zn的固相扩散系数D在10-16～10-13cm2·s-1数量级,发现中性介质中测出的D值比酸性介质中要大两个数量级。","authors":[{"authorName":"汪的华","id":"9cd446fd-d13e-4f01-b9c5-95f74a7e9ad5","originalAuthorName":"汪的华"},{"authorName":"邹津耘","id":"1a9a9ecf-f47b-4034-b77c-70afd7a0a10d","originalAuthorName":"邹津耘"},{"authorName":"邱万川","id":"5affbcf1-79df-4d32-90d1-b6ed32850103","originalAuthorName":"邱万川"},{"authorName":"苏解清","id":"f98a2cb4-d59d-4790-9780-67d9723b0f19","originalAuthorName":"苏解清"}],"categoryName":"|","doi":"","fpage":"20","id":"92255450-23c1-4fea-919a-1ed470fb1267","issue":"3","journal":{"abbrevTitle":"FSXB","coverImgSrc":"journal/img/cover/腐蚀学报封面.jpg","id":"24","issnPpub":"2667-2669","publisherId":"FSXB","title":"腐蚀学报（英文）"},"keywords":[{"id":"35d75964-6007-498d-8e25-c9824071e347","keyword":"黄铜脱锌","originalKeyword":"黄铜脱锌"},{"id":"7103f96a-50ec-4707-87b5-91d0db25603e","keyword":"null","originalKeyword":"null"},{"id":"ba3e269f-c217-4573-84de-e78831717e31","keyword":"null","originalKeyword":"null"},{"id":"2a4f112f-33bc-4b18-92eb-7044476df662","keyword":"null","originalKeyword":"null"}],"language":"zh","publisherId":"1002-6495_1996_3_4","title":"α黄铜<span style=\"color:red\">选择性</span>溶解的研究","volume":"8","year":"1996"},{"abstractinfo":"光谱<span style=\"color:red\">选择性</span>纳米涂料(SSNC)是指对太阳光具有<span style=\"color:red\">选择性</span>吸收、透过或反射且至少含有1种以上纳米材料的功能涂料.就SSNC的作用机理、制备方法进行了综述,并就其现存的问题和未来的发展进行了展望.","authors":[{"authorName":"何秋星","id":"bb2fe817-1c11-4045-9b02-8ef09acb7ba8","originalAuthorName":"何秋星"},{"authorName":"涂伟萍","id":"157730b6-a0b4-4651-80d9-37cfa2f2e41e","originalAuthorName":"涂伟萍"},{"authorName":"胡剑青","id":"0e279100-c095-4305-b20f-5ce538cfc222","originalAuthorName":"胡剑青"}],"doi":"","fpage":"9","id":"8ed57f1f-eb76-4c57-8183-53838491252a","issue":"12","journal":{"abbrevTitle":"CLDB","coverImgSrc":"journal/img/cover/CLDB.jpg","id":"8","issnPpub":"1005-023X","publisherId":"CLDB","title":"材料导报"},"keywords":[{"id":"3213e031-8abf-42ed-9421-4e03547ba064","keyword":"光谱<span style=\"color:red\">选择性</span>纳米涂料","originalKeyword":"光谱选择性纳米涂料"},{"id":"6ae7ed75-3d25-4ea2-aeb8-53ce653d0edb","keyword":"机理","originalKeyword":"机理"},{"id":"5bf7d8c6-66ea-4644-81b1-c95dad7fbc85","keyword":"功能涂料","originalKeyword":"功能涂料"},{"id":"8298c6d6-df2a-4912-8114-511db89767a0","keyword":"纳米材料","originalKeyword":"纳米材料"}],"language":"zh","publisherId":"cldb200512003","title":"光谱<span style=\"color:red\">选择性</span>纳米涂料的研究进展","volume":"19","year":"2005"},{"abstractinfo":"采用动电位扫描,恒电位浸蚀以及金相检测等方法,研究了不锈钢双相组织在酸性介质中发生<span style=\"color:red\">选择性</span>腐蚀的机理。研究发现,<span style=\"color:red\">选择性</span>腐蚀与体系所处的氧化-还原电位有关。在活化区的低电位段发生铁素体相的<span style=\"color:red\">选择性</span>腐蚀,较高电位段则发生奥氏体相的<span style=\"color:red\">选择性</span>腐蚀,两者之间存在一个两相腐蚀区;在过钝化区和近过钝化区,腐蚀优先发生在铁素体相上,然后向奥氏体相扩展。","authors":[{"authorName":"张余英","id":"1d3b4885-dc93-40c3-907d-1084871575dc","originalAuthorName":"张余英"},{"authorName":"张振邦","id":"89ebf9d5-6d97-499b-9ccd-7808a733c583","originalAuthorName":"张振邦"}],"categoryName":"|","doi":"","fpage":"238","id":"1ab120e1-73ff-4cf9-b1a6-57b83957d707","issue":"4","journal":{"abbrevTitle":"FSXB","coverImgSrc":"journal/img/cover/腐蚀学报封面.jpg","id":"24","issnPpub":"2667-2669","publisherId":"FSXB","title":"腐蚀学报（英文）"},"keywords":[{"id":"c8f4270b-3f72-49a0-a251-e8a7521b098c","keyword":"不锈钢","originalKeyword":"不锈钢"},{"id":"6c4bd11f-1b39-4d73-baa0-0a5f4a4acacb","keyword":"duplex weldments","originalKeyword":"duplex weldments"},{"id":"f7698211-3d8f-436b-b24d-16efa225d37f","keyword":"preferential dissolution","originalKeyword":"preferential dissolution"}],"language":"zh","publisherId":"1002-6495_1993_4_13","title":"不锈钢双相焊缝<span style=\"color:red\">选择性</span>腐蚀研究","volume":"5","year":"1993"},{"abstractinfo":"因为吸氢严重,一般的沉积工艺得到的钯镀层上存在气孔、裂纹等缺陷.利用正交设计研究了钯<span style=\"color:red\">选择性</span>电沉积过程.发现在移动阳极的作用下,钯<span style=\"color:red\">选择性</span>电沉积中离子扩散速度加快,使控制步骤由一般电沉积的扩散和电化学联合控制转为主要由电化学控制.AFM观察表明,镀层没有出现裂纹和气孔,质量颇好.","authors":[{"authorName":"蔡珣","id":"fa5e52e1-d836-4437-968c-26c28e363296","originalAuthorName":"蔡珣"},{"authorName":"杨瑞鹏","id":"88f9654e-25fe-4cb1-b107-b33749eddb1d","originalAuthorName":"杨瑞鹏"},{"authorName":"陈秋龙","id":"74a5e5dd-eedf-47ad-9130-147b044a641c","originalAuthorName":"陈秋龙"}],"doi":"10.3969/j.issn.1000-3738.2001.10.003","fpage":"8","id":"1c6027a1-88a2-4d17-9ac0-37301c3e74c8","issue":"10","journal":{"abbrevTitle":"JXGCCL","coverImgSrc":"journal/img/cover/JXGCCL.jpg","id":"45","issnPpub":"1000-3738","publisherId":"JXGCCL","title":"机械工程材料"},"keywords":[{"id":"f3b4fdda-f341-4fed-abe3-8c8750db033c","keyword":"钯","originalKeyword":"钯"},{"id":"af604d74-8783-4472-beb7-147e242c58b8","keyword":"<span style=\"color:red\">选择性</span>电沉积","originalKeyword":"选择性电沉积"},{"id":"86d24903-9283-4bdb-af2b-ab9a971218d7","keyword":"氢","originalKeyword":"氢"}],"language":"zh","publisherId":"jxgccl200110003","title":"钯<span style=\"color:red\">选择性</span>电沉积过程控制方式","volume":"25","year":"2001"},{"abstractinfo":"<span style=\"color:red\">选择性</span>激光烧结(Selective Laser Sintering)是20世纪80年代末出现的一种快速成型新工艺,它利用激光束烧结粉末材料制造原型,在工业上得到了广泛应用.对<span style=\"color:red\">选择性</span>激光烧结的工艺原理、实际应用及发展方向作了详尽介绍.","authors":[{"authorName":"李鹏","id":"8c6b3afa-5a86-4e1a-bb31-8c7eca4c6695","originalAuthorName":"李鹏"},{"authorName":"熊惟皓","id":"67929c62-1d98-405f-8bb2-c92c26b7d3e5","originalAuthorName":"熊惟皓"}],"doi":"","fpage":"56","id":"f48e0def-4bed-4347-b7ae-f0e4066ed06f","issue":"6","journal":{"abbrevTitle":"CLDB","coverImgSrc":"journal/img/cover/CLDB.jpg","id":"8","issnPpub":"1005-023X","publisherId":"CLDB","title":"材料导报"},"keywords":[{"id":"d5511d87-41f8-483c-9a65-129dd47491e2","keyword":"快速成型","originalKeyword":"快速成型"},{"id":"b0d84850-f8e2-4864-bf11-be9914381425","keyword":"<span style=\"color:red\">选择性</span>激光烧结","originalKeyword":"选择性激光烧结"}],"language":"zh","publisherId":"cldb200206016","title":"<span style=\"color:red\">选择性</span>激光烧结的原理及应用","volume":"16","year":"2002"}],"totalpage":5098,"totalrecord":50975}