• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Nuclear energy and the environment >Bridging the Gap in the Chemical Thermodynamic Database for Nuclear Waste Repository: Studies of the Effect of Temperature on Actinide Complexation
【24h】

Bridging the Gap in the Chemical Thermodynamic Database for Nuclear Waste Repository: Studies of the Effect of Temperature on Actinide Complexation

机译：弥合核废物处置库化学热力学数据库中的缺口：温度对Act系元素络合的影响研究

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Recent results of thermodynamic studies on the complexation of actinides (UO_2~(2+), NpO_2~+ and Pu~(4+)) with F-, SO_4~2- and H_2PO_4-/HPO_4~(2-) at elevated temperatures are reviewed. The data indicate that, for all systems except the 1:1 complexation of Np(V) with HPO_4~(2-), the complexation of actinides is enhanced by the increase in temperature. The enhancement is primarily due to the increase in the entropy term (TΔS) that exceeds the increase in the enthalpy (ΔH) as the temperature is increased. These data bridge the gaps in the chemical thermodynamic database for nuclear waste repository where the temperature could remain significantly higher than 25℃ for a long time after the closure of the repository.
机译：高温下of系元素（UO_2〜（2 +），NpO_2〜+和Pu〜（4+）与F-，SO_4〜2-和H_2PO_4- / HPO_4〜（2-）的络合热力学研究的最新结果被审查。数据表明，对于除Np（V）与HPO_4〜（2-）1：1络合以外的所有系统，act系元素的络合都随温度的升高而增强。增强主要是由于随着温度升高，熵项（TΔS）的增加超过了焓的增加（ΔH）。这些数据弥补了核废料储存库化学热力学数据库中的空白，在该数据库关闭后的很长一段时间内，温度可能会明显高于25℃。

著录项

  • 来源
    《Nuclear energy and the environment》|2009年|p.299-318|共20页
  • 会议地点 Washington DC(US);Washington DC(US)
  • 作者

    Linfeng Rao; Guoxin Tian; Yuanxian Xia; Judah I. Friese; PierLuigi Zanonato; Plinio Di Bernardo;

  • 作者单位

    Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA;

    Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA;

    Pacific Northwest National Laboratory, Richland, WA 99352, USA;

    Pacific Northwest National Laboratory, Richland, WA 99352, USA;

    Dipartimento di Scienze Chimiche, Universita di Padova, 35131 Padova, Italy;

    Dipartimento di Scienze Chimiche, Universita di Padova, 35131 Padova, Italy;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 核能工业;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号