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Insight toward the Electrochemical Properties of Sulfonated Poly(2,6-dimethyl-1,4-phenylene oxide) via Impregnating Functionalized Boron Nitride: Alternate Composite Polymer Electrolyte for Direct Methanol Fuel Cell
ACS Applied Energy Materials ( IF 5.4 ) Pub Date : 2020-06-22 00:00:00 , DOI: 10.1021/acsaem.0c01128 Vikrant Yadav 1, 2 , Nagaraju Niluroutu 3 , Santoshkumar D. Bhat 2, 3 , Vaibhav Kulshrestha 1, 2
ACS Applied Energy Materials ( IF 5.4 ) Pub Date : 2020-06-22 00:00:00 , DOI: 10.1021/acsaem.0c01128 Vikrant Yadav 1, 2 , Nagaraju Niluroutu 3 , Santoshkumar D. Bhat 2, 3 , Vaibhav Kulshrestha 1, 2
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A series of polymer electrolytes of sulfonated poly(2,6-dimethyl-1,4-phenylene oxide) (sPPO) in combination with two-dimensional sulfonated boron nitride (s-BN) has been synthesized to form composite polymer electrolytes for direct methanol fuel cell (DMFC). The sulfonation of boron nitride (BN) has been confirmed by XPS, FT-IR, and elemental analysis. The composite membranes have been characterized for their water content, ion transport phenomenon, and thermo-mechanical stabilities along with methanol crossover resistance. Further, s-BN shows good dispersion in sPPO composite membranes by forming amplified long-range ionic clusters via hydrophilic or hydrogen bonding interaction between the s-BN and sPPO matrix. The optimized s-BN/sPPO (5 wt %) composite membrane reveals 67% higher proton conductivity and one-third methanol permeability compared to pristine sPPO membrane. The s-BN/sPPO (5 wt %) composite membrane presents a DMFC peak power density of 122 mW/cm2, which is higher than the peak power densities of 88 and 60 mW/cm2 for Nafion 117 and pristine sPPO, respectively. The preferential increase in electrochemical selectivity of composite membranes suggests their potential in DMFCs.
中文翻译：
通过浸渍功能化氮化硼对磺化聚（2,6-二甲基-1,4-苯撑氧）的电化学性能的了解：直接甲醇燃料电池的替代复合聚合物电解质
合成了一系列磺化聚（2,6-二甲基-1,4-苯撑氧）（sPPO）与二维磺化氮化硼（s-BN）的聚合物电解质，以形成直接甲醇的复合聚合物电解质燃料电池（DMFC）。XPS，FT-IR和元素分析已证实氮化硼（BN）的磺化。复合膜的特征在于其水含量，离子迁移现象，热机械稳定性以及耐甲醇穿越性。此外，s-BN通过s-BN与sPPO基质之间的亲水或氢键相互作用形成放大的长距离离子簇，从而在sPPO复合膜中显示出良好的分散性。与原始的sPPO膜相比，优化的s-BN / sPPO（5 wt％）复合膜显示出高67％的质子传导率和三分之一的甲醇渗透率。s-BN / sPPO（5 wt％）复合膜的DMFC峰值功率密度为122 mW / cm2的峰值功率密度分别高于Nafion 117和原始sPPO的峰值功率密度88和60 mW / cm 2。复合膜电化学选择性的优先增加表明它们在DMFC中的潜力。
更新日期：2020-06-22
中文翻译：
通过浸渍功能化氮化硼对磺化聚（2,6-二甲基-1,4-苯撑氧）的电化学性能的了解：直接甲醇燃料电池的替代复合聚合物电解质
合成了一系列磺化聚（2,6-二甲基-1,4-苯撑氧）（sPPO）与二维磺化氮化硼（s-BN）的聚合物电解质，以形成直接甲醇的复合聚合物电解质燃料电池（DMFC）。XPS，FT-IR和元素分析已证实氮化硼（BN）的磺化。复合膜的特征在于其水含量，离子迁移现象，热机械稳定性以及耐甲醇穿越性。此外，s-BN通过s-BN与sPPO基质之间的亲水或氢键相互作用形成放大的长距离离子簇，从而在sPPO复合膜中显示出良好的分散性。与原始的sPPO膜相比，优化的s-BN / sPPO（5 wt％）复合膜显示出高67％的质子传导率和三分之一的甲醇渗透率。s-BN / sPPO（5 wt％）复合膜的DMFC峰值功率密度为122 mW / cm2的峰值功率密度分别高于Nafion 117和原始sPPO的峰值功率密度88和60 mW / cm 2。复合膜电化学选择性的优先增加表明它们在DMFC中的潜力。
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