Effects of multi-walled carbon nanotubes on bipolar membrane properties
Effects of multi-walled carbon nanotubes on bipolar membrane properties
复制标题
多壁碳纳米管对双极性膜性能的影响
DOI：
10.1016/j.matchemphys.2017.09.068
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发表时间：
2018
影响因子：
4.6
通讯作者：
Xiao Chen
中科院分区：
文献类型：
--
作者：
Yaoxing Liu;Jiahui Chen;Riyao Chen;Tingjin Zhou;Chenjing Ke;Xiao Chen
Fe ~（3+）能有效地改善双极膜的水分解和降低电压降，但在电解过程中会损失Fe ~（3+）。在本研究中，功能化的多壁碳纳米管（MWCNTs）被用来修改BPM减少Fe 3+损失。结果表明，改性后薄膜的亲水性、力学性能和残余Fe 3+量明显提高，而Fe 3+流失量和电压降明显降低。改性前后BPM中Fe ~（3+）的残留量分别为17.44和82.22 μg/g BPM。在电流密度60 mA/cm 2下电解BPM 600 min后，由于Fe 3+损失，未改性BPM的电压降从2.25 V增加到3.56 V（1.31 V差异），而用功能性MWCNT改性的BPM的电压降从0.59 V增加到0.85 V（增加0.26 V）。Fe 3+残留量与电压降呈负相关（R=-0.964，P = 0.036）。这些结果表明，MWCNT掺杂可以有效地减少Fe 3+损失和电压降。本发明的多壁碳纳米管掺杂技术对新型双相材料的制备具有一定的借鉴作用。
Fe3+is effective for improving water splitting and decreasing voltage drop of bipolar membranes (BPMs), but such systems suffer from Fe3+loss during electrolysis. In the present study, functionalized multi-walled carbon nanotubes (MWCNTs) were used to modify BPMs for reduced Fe3+loss. The results of such modification indicate that the hydrophilicity, mechanical properties, and amount of residual Fe3+obviously increased, while the Fe3+loss and voltage drop obviously decreased after BPM modification. The amounts of residual Fe3+contents in the BPMs before and after modification were 17.44 and 82.22 μg/g of BPM, respectively. After electrolysis of the BPMs for 600 min at the current density 60 mA/cm2, the voltage drop of the unmodified BPM increased from 2.25 to 3.56 V due to Fe3+loss (a 1.31 V difference), while this value increased from 0.59 to 0.85 V for the BPM modified with functional MWCNTs (an increase of 0.26 V). The Fe3+residual amount has a negative correlation with the voltages drop (R= −0.964,P= 0.036). These results indicate that MWCNT doping can effectively decrease Fe3+loss and voltage drop. The present MWCNT doping technique has a certain reference function for the preparation of new BPMs.
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影响因子：
9.9
作者：
I. Raissouni;M. Marraha;A. Azmani
通讯作者：
I. Raissouni;M. Marraha;A. Azmani
影响因子：
9.5
作者：
R. Simons
通讯作者：
R. Simons
DOI：
10.1016/j.cep.2013.11.005
发表时间：
2014-01-01
影响因子：
4.3
作者：
Ilhan, F.;Kabuk, H. A.;Gonullu, M. T.
通讯作者：
Gonullu, M. T.
影响因子：
9.9
作者：
V. Zabolotskii;Nicolay Sheldeshov;S. Melnikov
通讯作者：
V. Zabolotskii;Nicolay Sheldeshov;S. Melnikov
影响因子：
13.6
作者：
Liu, Yao-Xing;Yuan, Dong-Xing;Ouyang, Tong
通讯作者：
Ouyang, Tong