触媒

In producing synthetic diamond, the carbon source acts differently from metal solvent.

在合成钻石时，碳源的作用与金属触媒的作用是不同的。

At present, industrial artificial diamond technic is a conversion of carbon from graphite structure to diamond structure by the effect of catalyst alloy at high temperature and high pressure.

目前，工业人造金刚石的合成是在高温高压条件下通过触媒作用将碳元素的排序由石墨结构转变成金刚石结构。

Experimental results showed that the Me_3C pattern carbides produced by the action of catalyst and graphite are main carbon source to form diamond structure under high temperature and high pressure.

在高温高压条件下，金属触媒与石墨形成的碳化物Me3C是形成金刚石结构的主要碳源。

At present,industrial artificial diamond technic is a conversion of carbon from graphite structure to diamond structure by the effect of catalyst alloy at high temperature and high pressure.

1引言金刚石和石墨是碳的两种同素异形体，化学成分都是纯碳，人造金刚石是在高温高压下经过触媒作用将石墨结构发生转变的结果。

The efficacy of photocatalytic oxidation was relative to the number of dip-coated plate, which 2 and above plates was superior to one plate, and also vertical plane to the light source was more efficient than parallel plane. The reaction rate constant showed the color removal decreased as initial MB concentration was raised. As for efficiency of catalyst durability, it was found that TiO2 dip-coated stainless steel plate performed 95% color removal at 5ppm MB even after 4 times repeated usage, which showed favorable durability. However, when the concentration up to 10 ppm, the color removal decreased as the used counts was raised.

脱色率和钢网片数有关，钢网片数超过2片以上时，其光催化效能优於单片者；光催化效能与钢网摆放方式或光源入射的角度有关，与光源垂直摆放的脱色率优於与光源平行摆放者；由反应速率常数得知，反应物之脱色率随著反应物初始浓度的提升而递减：在耐用性方面，亚甲基蓝5ppm在重覆使用四次后，其六个小时脱色率皆维持95%，显示自制光触媒钢网之耐用性颇佳，若将反应物浓度提升至100ppm，其脱色率随著使用次数之增加而递减。

In these experiments, we have choosen the activated carbon as the support, and copper nitrate, copper acetate and copper sulfate were used as precursors to prepare the supported activated carbon-copper catalysts. Toluene was chosen as pollutant for activity test.

本实验选择活性碳当担体，而前驱物为硝酸铜、醋酸铜、硫酸铜制备金属活性相为铜之触媒，并假设目标污染物为甲苯来进行实验探讨。

The copper-coated zeolite was prepared by the ion-exchange method. The effects of parameters such as operation temperature, the concentration of VOCs, the quantity of Cu on the catalysts, and space velocity on the catalyst performance were discussed.

本研究利用离子交换法将铜植入HiSiv 3000沸石，并探讨温度、还原剂浓度、触媒之Cu含量以及空间速度等参数对测试结果之影响。

In this paper, the effect of additive boron on the diamond synthesized using pure iron powder catalyst was studied.

本文研究了添加剂硼对纯铁粉末触媒合成金刚石的影响。

This paper deals with the preparation of synthetic diamond single crystal with boron at high temperature and high pressure from Fe-Ni-C-B system.

1前言石墨转变为金刚石是碳的同素异构体转变，由于触媒的参与使之合成压力与温度大幅度降低。

Due to the action of boron, the diamond has rough grain size, bad crystal shape and complex surface structure.

提出了一种在高温高压下利用粉末冶金方法制备的Fe-Ni-C-B系触媒合金生长Ⅱb型金刚石的新方法由于硼元素的存在，Ⅱb型金刚石生长所需的温度和压力条件均高于普通的Ⅰb型金刚石，并且合成出的金刚石单晶粒度较粗，晶形稍差，表面结构比较复杂。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。