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首页> 外文会议>National Seminar on "Application of Chemical Engineering for Utilisation of Natural Resources (CHEMINAR-2001)", Feb 16-18, 2001, Bhubaneswar >Preparation of Nickel Hydroxide Using Electroless Technique
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Preparation of Nickel Hydroxide Using Electroless Technique

机译：化学法制备氢氧化镍

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摘要

Rechargeable batteries have found many applications during these days due to the development in electronic industry. In this paper an attempt is made to prepare nickel hydroxide by electroless technique using different complexing agents. Nickel hydroxide prepared by using tri-ethanol amine and ammonia solutions shows high discharge capacity value. The samples were prepared using Ni(NO_3)_2 solution, complexing agent and 80% potassium hydroxide solution. These samples were filtered and dried in an oven at 50℃ for 2 hours after aging for 72 hours in mother liquor. The particle size of the samples are found to be in between 4 μm to 20 μm. The charge-discharge characteristics were studied by making pellets of nickel hydroxide and using it as a working electrode in 30% KOH Solution. Two cadmium hydroxide pellets were used as the counter electrodes and Hg/HgO (6MKOH) was used as a reference electrode. Some of the samples are showing discharge capacity more than 230 mAh/g. All the samples are analysed for their physico-chemical properties by XRD, TG-DTA and SEM.
机译：由于电子工业的发展，可充电电池在这些天中已经发现了许多应用。本文尝试使用不同的络合剂通过化学方法制备氢氧化镍。通过使用三乙醇胺和氨溶液制备的氢氧化镍显示出高的放电容量值。使用Ni（NO_3）_2溶液，络合剂和80％氢氧化钾溶液制备样品。在母液中老化72小时后，将这些样品过滤并在50℃的烘箱中干燥2小时。发现样品的粒度在4μm至20μm之间。通过制作氢氧化镍颗粒并将其用作工作电极（在30％KOH溶液中）来研究充放电特性。将两个氢氧化镉颗粒用作对电极，并将Hg / HgO（6MKOH）用作参比电极。一些样品显示放电容量超过230 mAh / g。通过XRD，TG-DTA和SEM分析所有样品的理化性质。

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