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氟氧化物

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The orthogonal design method is used for preparation of rare earth fluoride by rare earth oxide(Gd_2O_3) fluorination with NH_4HF_2 in this paper.

采用正交试验法,研究了用氟化氢铵作氟化剂直接与稀土氧化物(Gd2O3)反应,制备稀土氟化物的工艺,确定了氟化的最佳工艺条件,并进行了分析讨论。

A selective and mild PS-DIB/ionic-liquid immobilized 2, 2, 6, 6-tetramethyl-piperidin-4-ol-N-oxyl catalytic oxidation procedure of alcohols to the corresponding aldehydes and ketones in ionic liquid BF4 at room temperature was developed. The oxidant PS-DIB was prepared via the iodation and acetylation of polystyrene resin. For the preparation of the ionic-liquid immobilized TeMPO catalyst, 4-(2, 2, 6, 6-Tetramethyl-1-oxyl-4-piperidoxyl)butyl bromide was first synthesized from TeMPO and 1, 4-dibromobutane.

将聚苯乙烯树脂先碘化再乙酰基化,制得了负载型二乙酰氧碘苯作为氧化剂。2, 2, 6, 6-四甲基-N-氧自由基哌啶醇与1, 4-二溴丁烷反应生成4-溴丁氧基-2, 2, 6, 6-四甲基-哌啶-1-氧化物,再与N-甲基咪唑发生季铵化反应,生成的溴化季铵盐与四氟硼酸钠进行离子交换制得氟硼酸型2, 2, 6, 6-四甲基-N-氧自由基哌啶负载离子液体。

A selective and mild PS-DIB/ionic-liquid immobilized TEMPO catalytic oxidation procedure of alcohols to the corresponding aldehydes and ketones in ionic liquid BF4 at room temperature was developed. The oxidant PS-DIB was prepared via Iodation and acetylation of polystyrene resin. For the preparation of the ionic-liquid immobilized TEMPO catalyst, 4-(2,2,6,6-Tetramethyl-1-oxyl-4-piperidoxyl)butyl bromide was first synthesized from 2,2,6,6-tetramethyl-piperidin-4-ol-N-oxyl and 1,4-dibromobutane.

将聚苯乙烯树脂先碘化再乙酰基化,制得了负载型二乙酰氧碘苯(diacetoxyiodo polystyrene,PS-DIB)作为氧化剂。2,2,6,6-四甲基-N-氧自由基哌啶醇(2,2,6,6-tetramethyl-piperidin-4-ol-N-oxyl,TEMPO)与1,4-二溴丁烷反应生成4-溴丁氧基-2,2,6,6-四甲基-哌啶-1-氧化物,再与N-甲基咪唑发生季铵化反应,生成的溴化季铵盐与四氟硼酸钠进行离子交换制得氟硼酸型2,2,6,6-四甲基-N-氧自由基哌啶负载离子液体TEMPO-IL。

Up-conversion luminescence ; Er~3+ ion ; Volumetric display ; Multi-step excitation ; Oxyfluoride glass material

上转换发光; Er~(3+)离子;立体三维显示;多步激发;氟氧化物玻璃材料

In this paper we study the indirect upconversion-sensitization luminescence of Tm(0.1)Yb(10.9):oxyfluoride glass induced by 800nm diode laser.

研究了Tm(0.1)Yb(10.9)氟氧化物玻璃在800 nm半导体激光激发下的间接上转换敏化发光现象。

In this paper, transparent Er(superscript 2+) ions doped oxyfluoride glass-ceramics was prepared by high temperature melting and thermal treatment technology. The changes of micro-crystals structure, UV-VIS absorption spectra and NIR emitting spectra occurred with the variety of Er(superscript 3+) concentrations were studied.

采用高温熔融及热处理工艺,制备了透明度良好的Er(上标 3+)离子掺杂的氟氧化物玻璃陶瓷,并研究了不同Er(上标 3+)离子掺杂浓度下,玻璃陶瓷微晶结构、紫外-可见波段吸收光谱、近红外发射光谱的变化。

The up-conversion properties of Er3+ in the oxyfluoride glass-ceramics codoped with Er3+ and Yb3+ were studied using the 960 nm semiconductor laser as a pumped source.

金杰用960 nm半导体激光器作泵浦源,研究了Er3+和Yb3+共掺杂的氟氧化物玻璃陶瓷中Er3+的上转换发光的性质。

A set of 61 ion polarizabilities has been derived from the dielectric constants of 129 oxides and 25 fluorides using a least squares refinement technique in conjunction with the Clausius–Mosotti equation.

61离子的极化设置了129名来自25个氟氧化物和介电常数使用与克劳Mosotti方程,联最小二乘改进技术。

A set of 61 ion polarizabilities has been derived from the dielectric constants of 129 oxides and 25 fluorides using a least squares refinement technique in conjunction with the Clausius–Mosotti equation.

61离子的极化设置了129名来自25个氟氧化物和介电常数使用与克劳米斯蒂方程,联最小二乘改进技术。

A set of 61 ion polarizabilities has been derived from the dielectric constants of 129 oxides and 25 fluorides using a least squares refinement technique in conjunction with the Clausius–Mosotti equation.

61离子的极化成立了129名来自25个氟氧化物和介电常数运用与克劳Mosotti方程,联最小二乘纠正本领。

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此刻阴唇已经几乎完全的缝在一起了,排除多余淤血体液的管子和Foley导管从顶端冒出来。

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