两性氧化物

ZnO是两性氧化物，在溶液中能够引起电动势和电流的变化。

ZnO is an amphoteric oxide , it can cause electromotive force and currents changes in solution .

在两性氧化物中，ZnO具有较高的PO转化率（5526%）和PPM选择性（9237%）。

Among the amphoteric oxides , ZnO has the best catalytic properties ( PO conversion of 55.26 and 1-methoxy-2-propanol selectivity of 92.37 % ) .

以γ-氧化铝、4A分子筛、活性二氧化硅、轻质氧化镁和活性氧化锌等两性氧化物用做催化剂进行研究。

Investigation based on different kinds of amphoteric oxides such as activated alumina , molecular sieve of 4A type , activated silica , light magnesium oxide and activated zinc oxide was carried out .

对碱土金属氧化物和两性氧化物等10种氧化物作为合成1甲氧基2丙醇固体催化剂进行了催化性能筛选。

The catalytic properties of a series of alkali earth metal oxides and amphoteric metal oxides were measured for the synthesis of 1-methoxy-2-propanol .

考察了用酸性、两性和碱性氧化物改性HY分子筛对烷基化反应性能的影响。

Influence of modification with acidic , amphiprotic and basic oxides on alkylation properties of HY molecular sieve was investigated .

此方法对其它两性金属及其氧化物也具有适用性，成功地合成了Cu、Cu2O、CuO和ZnO纳米管/纳米棒，并详细讨论了形成机理，为纳米结构液相合成开辟了新途径。

This method is a general approach for the synthesis of other amphoteric metal oxides , by which Cu 、 Cu2O 、 CuO and ZnO namorods / nanotubes also were prepared . The formation mechanism has been discussed in detail .