当前位置:群英聚首 >> 最新动态 >> 正文
祝贺朱桂华同学的论文发表在Energy期刊上
来源:于伟教授个人网站 发布日期:2019-07-14

Enhancement of photothermal conversion performance using nanofluids based on bimetallic Ag-Au alloys in nitrogen-doped graphitic polyhedrons作者:Guihua Zhu, Lingling Wang, Naici Bing, Huaqing Xie, Wei Yu

关键字:Composite nanofluids Plasmonic bimetallic alloy Nitrogen-doped graphitic polyhedrons Photothermal conversion Solar energy

论文来源:期刊

具体来源:Energy 183 (2019) 747-755

发表时间:2019年

The working fluids with higher solar thermal conversion performance within broadband spectrum ranges are of great concern for direct absorption solar collectors (DASCs). Both metal nanoparticles with localized surface plasmon resonance (LSPR) effects and carbon nanomaterials have unique spectral absorption behaviors and have shown better photothermal performance in DASCs. In this paper, we attempted to prepare composite nanofluids including plasmonic bimetallic alloy and carbon nanomaterials to realize enhanced solar absorption and photothermal conversion performance. By taking ZIF-8-derived nitrogen-doped graphitic polyhedrons (ZNGs) as carrier, plasmonic bimetallic Ag-Au alloy nanoparticles were loaded on them by an impregnation-reduction method successfully. Ag-Au/ZNGs ethylene glycol nanofluids showed significant broadband absorption in the visible and near-infrared spectrum range at a lower concentration. Comparing to ethylene glycol, the photothermal conversion effeiency of all ZNGs nanofluids increased remarkablely. Plasmonic bimetallic Ag-Au alloy nanoparticles further improved the photothermal conversion efficiency, which was up to 74.35% for Ag-Au ZNGs nanofluids compared with 72.41%, 70.35% for Au/ZNGs, Ag/ZNGs respectively. This work presents a new way to enhance solar energy absorption and improve solar thermal conversion efficiency of nanofluids for DASCs

Copyright © 2005 Polymer.cn All rights reserved
中国聚合物网 版权所有
经营性网站备案信息

京公网安备11010502032929号

工商备案公示信息

京ICP证050801号

京ICP备12003651号