电催化

Some of the complexes withβ-diketone derive ligands, which potential applicated in optical, electricity, magnetism, absorption, catalysis, ion exchange, gas storage and so forth.

此类配体所构筑的各式各样的配合物在光、电、磁、吸附、催化、离子交换、气体储存、分子载体、生物活性、荧光器件材料等方面具有一定的应用价值。

In addition, Electrodeposit Ni in the pore of PS substrates used to prepare carbon nanotubes was performed, and a carbon nanotubes array with diameter smaller than 10nm was obtained.

采用在多孔硅中电沉积镍作催化剂进行催化热解来制备碳纳米管，获得了管径较细、具有一定取向性的碳纳米管。

The aim of this dissertation was to investigate the effects of SPE technique on electrochemically assisted photocatalytic system.

通过对SPE法电助光催化的影响因素的研究，找出合适的光催化最佳条件。

The direct electroreduction of nitrite requires large overpotential on most electrode surfaces, however, various transition-metal complexes were proved to be good catalysts for nitrite reduction.

NO〓〓的直接电还原需要很高的过电位，但各种各样的金属配合物被证明是NO〓〓电还原的良好催化剂，而我们在实验中惊奇地发现一系列饱和未取代的和稀土取代的杂多化合物对NO〓〓还原产生良好的催化作用。

The structures and properties of the compounds are profoundly affected by the unusual stereochemical effects of the so-called lone-pair electrons in heavy p-block elements in lower oxidation states.

其与过渡金属，特别是前过渡金属的复合氧化物在催化、快离子导体、铁电材料、压电材料、光学材料等领域具有重要的实际应用和广阔的应用前景。

In the second part, the cross-coupling reaction of organoboronic acid witharyl halide catalyzed by Pd has been studied, and the 〓 catalyzedcross-coupling reaction in organic phase and the 〓-TPPTS catalyzed reac-tion in water phase have been investigated also.

结果表明，无论是有机相催化反应还是水相催化反应，都得到了很高的转化率和产率。该反应条件温和，并且硼试剂和亲电底物上可以带各种官能团，适用范围极宽，是一个极有应用价值的反应。

Chiral SalanCrX complexesa saturated version of SalenCr(ⅢX are designed,and in conjunction with an ionic quaternary ammonium salt or organic strong base can efficiently catalyze the asymmetric,regio-and stereoselective alternating copolymerization of CO_2 with rac-PO at mild conditions to afford isotactic-enriched polycarbonates with～95%head-to-tail linkages and moderate enantioselectivity.

本论文在Salen构型配体的基础上，设计合成了一系列手性Salan型铬配合物，并将其与季铵盐/有机强碱组成亲电-亲核双组分催化体系，在室温下可以有效的催化CO_2和环氧丙烷的不对称交替共聚反应，实现了CO_2和环氧丙烷的不对称交替共聚反应的区域和立体化学控制，得到95%的头尾连接单元和中等光学纯度(对映体过量值ee%≈70%)的全同结构的聚碳酸酯。

Transition metal borides and inorganic boron-containing compounds, such as TiB〓, BN, B〓C and BP, are one of the most important groups for application in high-temperature performance, electronics and catalysts. Traditionally, they were prepared by high-temperature reactions; however, the products were beyond nanometer scale.

中文题名溶剂热合成硼化物及非金属含硼化合物纳米材料副题名外文题名论文作者谷云乐导师钱逸泰学科专业无机化学研究领域\研究方向学位级别博士学位授予单位中国科学技术大学学位授予日期2003 论文页码总数70页关键词纳米材料硼化物溶剂热合成馆藏号BSLW /2003 /O613 /6 硼化物、非金属含硼化合物功能材料（如硼化钛、氮化硼、碳化硼和磷化硼等）通常具有高硬度、高熔点、机械强度大、高温化学稳定性好等一系列优良性能，有些还具有奇异的光、电、磁、热学性能和催化活性，是一类最富潜力的非氧化物高温结构材料、电子材料和催化材料。

Use SEM/EDX, TEM and XRD instrument to determine the basic characteristic of the photocatalyst, and apply the photocatalyst to decompose methyl blue solution to discuss with its performance and functions.

用铜属本身捕获二氧化钛光生电子的能及其变价特性，有效减少电子电再结合的机，因此经过属改质的二氧化钛光触媒具有佳的光催化效果，藉由SEM/EDX、TEM与XRD等仪器鉴定此光触媒之基本特性，并将其应用於分解亚甲基溶液以探讨其光催化分解性能。

In the study of catalytic mechanism, the electrophilic alternative mechanism was suggested.

在催化机理的研究中，提出该反应属亲电取代机理，并结合文献推出了本实验的催化机理。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新