当前位置: X-MOL 学术Colloid Interface Sci. Commun. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
New class of composite anion exchange membranes based on Quaternized poly (phenylene oxide) and functionalized boron nitride
Colloid and Interface Science Communications ( IF 4.5 ) Pub Date : 2020-04-30 , DOI: 10.1016/j.colcom.2020.100265
Nehal H. Rathod , Vikrant Yadav , Abhishek Rajput , Jeet Sharma , D.K. Shukla , Vaibhav Kulshrestha

Anion exchange membranes (AEM) are very important for water desalination and sustainable energy conversion devices. For the synthesis of AEM, carcinogenic chemicals were used, which are banned in India. So based on the requirement quaternized poly (phenylene oxide) (QPPO) based composite membranes has been synthesized in combination with functionalized boron nitride (f-BN). Membrane properties are tuned by varying f-BN content in QPPO. Composite membranes are characterized by means of their water content, ion exchange capacity and ionic conductivity. Additionally, thermal and mechanical properties are also evaluated. BPO-5 membrane displays 1.92 meq/g ion exchange capacity and 6.29 × 10–3 S/cm ionic conductivity. The power consumption and current efficiency during salt removal for BPO-5 membrane is found to be 1.96 kWh/kg and 96.26%, respectively. Among all membranes, BPO-5 exhibits excellent thermal and mechanical stability. BPO-5 membrane show lower power consumption, with high current efficiency during salt removal and better electrochemical selectivity.



中文翻译:

基于季铵化聚苯醚和功能化氮化硼的新型复合阴离子交换膜

阴离子交换膜(AEM)对于水脱盐和可持续的能源转换设备非常重要。对于AEM的合成,使用了致癌化学物质,印度禁止使用。因此,根据需要,已结合功能化氮化硼(f-BN)合成了季铵化聚苯醚(QPPO)基复合膜。通过改变QPPO中的f-BN含量来调节膜性能。复合膜的特征在于其水含量,离子交换容量和离子电导率。另外,还评估了热和机械性能。BPO-5膜的离子交换容量为1.92 meq / g,离子电导率为6.29×10–3 S / cm。发现用于BPO-5膜的除盐过程中的功耗和电流效率分别为1.96 kWh / kg和96.26%。在所有膜中,BPO-5具有出色的热稳定性和机械稳定性。BPO-5膜具有较低的功耗,在除盐过程中具有较高的电流效率,并具有更好的电化学选择性。

更新日期:2020-04-30
down
wechat
bug