Improving thermo-electrochemical cell performance by constructing Ag-MgO-CNTs nanocomposite electrodes
Improving thermo-electrochemical cell performance by constructing Ag-MgO-CNTs nanocomposite electrodes
复制标题
通过构建Ag-MgO-CNTs纳米复合电极提高热电化学电池性能
DOI：
10.1039/c5ra19182c
复制
发表时间：
2015-01-01
期刊：
影响因子：
3.9
通讯作者：
Dong, Changkun
中科院分区：
文献类型：
--
作者：
Qian, Weijin;Li, Mengjie;Dong, Changkun
由于碳纳米管（CNT）在电泳沉积（EPD）方法中与基底的接触较弱，因此将其用作热电化学电池（TEC）电极仍然很困难。在本研究中，通过掺杂与Mg 2+和Ag粉的碳纳米管的悬浮液，Ag-MgO-CNT纳米复合材料成功地制备在不锈钢（SS）基板上使用电泳法。通过扫描电子显微镜、X-射线衍射、能量色散X-射线和X-射线光电子能谱对产物进行了表征。由于Ag-MgO-CNTs纳米复合材料电极具有较高的导电性、导热性以及复合膜与SS基底之间的粘附性，其TEC性能显著提高，这取决于Ag粉的浓度。结果表明，构建Ag-MgO-CNTs纳米复合电极可以有效地提高CNTs基TEC的性能，这可能是一种利用EPD技术制备的CNTs基TEC进行能量收集的有前途的方法。
The application of carbon nanotubes (CNTs) as a thermo-electrochemical cell (TEC) electrode is still difficult due to their weak contact with the substrate during the electrophoretic deposition (EPD) method. In this study, by doping the suspension of the CNTs with Mg2+ and Ag powder, Ag-MgO-CNT nanocomposites were successfully prepared on a stainless steel (SS) substrate using the EPD method. The products were confirmed using characterization by scanning electron microscopy, X-ray diffraction, energy-dispersive X-ray and X-ray photoelectron spectroscopy. The TEC performance of the Ag-MgO-CNTs nanocomposite electrodes was significantly improved due to their higher conductivity, thermal conductivity and improved adhesion between the composite film and the SS substrate, depending on the concentrations of the Ag powder. The results suggest that constructing Ag-MgO-CNTs nanocomposite electrodes can effectively enhance the performance of CNTs-based TECs, which might be a promising way for energy harvesting using CNTs-based TECs prepared via the EPD technique.