混合稀土氯化物催化合成了氧基吡喃的Diels－Alder反应

报道了混合稀土氯化物催化丙烯酸和乙烯基丁醚环加成反应的动力学行为．在温和条件下，反应收率可由非催化反应的５％提高到７４％，反应为二级反应。     

固体卤化物的抑尘性能

用试验方法分别测定了含ＮａＣｌ，ＣａＣｌ２，ＭｇＣｌ２３种卤化物的粉尘试样在自然环境中昼夜周期吸湿、放湿的行为，并统计分析了试样吸湿率与吸湿剂含量、空气中的温度、湿度等因素之间的关系．其研究结果对卤化物抑制路面、地面和各种散体堆放场等的扬尘具有重要的实际意义．     

碳酸铯催化下烷基芳醚的制备

研究了碳酸铯催化酚与卤代烃反应制备烷基芳醚．以碳酸铯作催化剂,氢氧化钾作碱,DMF作溶剂,室温下,在分子筛存在下,苯酚、萘酚、3,5-二叔丁基苯酚及4-[二(4 -叔丁基苯基)苯基甲基]苯酚与溴乙烷、溴丁烷及苄溴等反应形成相应的烷基芳醚,收率为90%～96%．结果表明,碳酸铯可有效地催化酚与卤代烃反应．     

NaCl-KCl熔体中的氧化物电极(英文)

本文研究了等摩尔NaCl-KCl熔盐体系中各种氧化物电极对Cl)_2析出的电催化活性。用热分解方法制取的石墨基RuO_2和RuO_2+TiO_2电极其电催化作用明显,它们的交换电流密度分别为0.61,0.77A/cm~2,比石墨电极活性大的原因是由于惰性电极具有较大的电极粗糙度,RuO_2电极的双电层电容高达0.38F/cm~2。     

硅酸聚合度对聚硅氯化铝絮凝特征的影响

聚硅酸铝盐是一类新型无机高分子絮凝剂，是在聚硅酸和聚铝絮凝剂的基础上发展起来的复合产品，以蒸馏水稀释硅酸钠至含SiO23.0％，用硫酸调节pH值至4.5，旋转不同时间使其聚合，得到不同聚合度聚硅酸，以制备得到的聚硅酸和氯化铝为原料，通过共聚法制备了不同硅酸聚合度、碱化度（B）、铝硅摩尔比（Al/Si）的聚硅氯化铝（PASC）絮凝剂。采用Al-Ferron逐时络合比色法，测定了絮凝剂水解铝的形态分布特征研究了其影响因素，分析探讨了不同聚合度的硅酸与铝水解聚合产物间的相互作用。将其有于商品砼废水的处理，当硅酸聚合时间为145min时，所制备的聚硅氯化铝（PASC）絮凝剂的除浊率高达97％。     

相转移条件下钯催化合成邻氯苯乙酸

报道在相转移催化剂存在下，以Ｐｄ（ＰＰｈ３）２Ｃｌ２作羰基催化剂，用邻氯氯苄、一氧化碳为原料在常压下羰基化合成邻氯苯乙酸，收率６２．２％，并考察了该反应的影响因素。     

Preparation, structure and application of a new ecomaterials cesium ion-sieve

A new ecomaterials cesium ion-sieve (Cs-IS). which has high selectivity to cesium and excellent acid resistance, is prepared with zirconyl molybdopyrophosphate as its matrix by specific chemical sieve-making means. Cs-IS has large exchange capacity (1. 83 mmol'g^-1) and high distribution coefficient (4. 09 X 104 mL'L^-1) in the medium of 3 mol'L^-1 HNO3. In the static exchange with strongly acidic high-level radioactive liquid waste (HLLW) (3 mol'L HNO3). Cs-IS exhibits high exchange rate for cesium (above 96. 53% ) and large separation factor (greater than 958. 41). These indicate the possible use of Cs-IS in cesium^-137 selective removal and recovery from highly saline acidic HLLW system.     

Tunable fabrication of single-crystalline CsPbI3 nanobelts and their application as photodetectors

Lead halide perovskites have received increasing attention recently as a candidate material in various optoelectronic areas because of their high performance as light absorbers. Herein, we report the growth of CsPbI3 nanobelts via a solution process. A single-crystalline CsPbI3 nanobelt with uniform morphology can be achieved by controlling the amount of PbI2. A single-crystalline CsPbI3 nanobelt possesses a mean width, length, and thickness of 100 nm, 5 μm, and 20 nm, respectively. In this work, photodetectors (PDs) based on individual CsPbI3 nano-belts are constructed and found to perform well with an external quantum efficiency and responsivity of 2.39 × 105％ and 770 A/W, respect-ively. The PDs also show a high detectivity of up to 3.12 × 1012 Jones, which is at par with that of Si PDs. The PDs developed in this work ex-hibit great promise in various optoelectronic nanodevices.     

人工合成NaA型沸石对锶铯的吸附研究

本文通过实验研究了人工合成ＮａＡ型沸石及天然沸石矿物对锶铯的吸附作用。研究表明人工合成ＮａＡ型沸石对锶铯的吸附性能优于天然沸石、且迁移率低,是吸附中低放核素９０Ｓｒ及１３７ Ｃｓ理想材料     

氯盐溶液中Zn（Ⅱ）离子在汞电极上的阴极还原

本文采用多种电化学研究方法探讨了氯盐溶液中 Zn(Ⅱ)离子在汞电极上阴极还原的电极过程动力学和电极反应机理。氯盐溶液中的 Zn(Ⅱ)离子在汞电极上阴极还原的两电荷传递一步完成,电极过程表现为扩散传质步骤控制的可逆电极过程动力学规律。Zn(Ⅱ)离子在氯盐溶液中主要以 ZnCl_3~-络合离子形式存在,ZnCl_3~-放电还原经历转变成 ZnCl_(2?)的前置转化反应。