Hydrogen bond-dominated polybenzimidazole semi-interpenetrating network membranes for alkaline water electrolysis
文献情報
Lihua Wang, Min He, Pingxia Zhang, Hao Li, Yanbin Yun, Tong Zhao
Polybenzimidazole (PBI) membranes are considered promising for the energy field, but are restricted by their unsatisfactory ionic conductivity. Thermoplastic phenolic resins (TPPRs) bearing abundant hydroxyl polar groups can contribute to the ionic transport of the PBI membranes. Herein, the interaction of PBI with TPPR introduced abundant hydrogen bonds, forming a hydrogen-bond dominated PBI/TPPR membrane with multiple ion channels to facilitate OH– transport. Moreover, C-PBI/TPPR semi-interpenetrating network (C-PBI/TPPR-sIPNs) membranes with multi-anchored sites were obtained by further cross-linking, which improved the stability. Molecular dynamics (MD) and density functional theory (DFT) simulations further confirmed that the hydrogen bonds between PBI and TPPR resulted in the formation of multiple ion transport channels in the membrane, strengthening the vehicle and Grotthuss transport mechanisms. As a result, the hydroxide ion conductivity of the novel membrane increased by approximately 2 times, and the membrane exhibited good durability. More importantly, these novel membranes were successfully applied in alkaline water electrolysis. This study will inspire further investigations on the binding mode and ion transport mechanism of PBI with other hydroxyl-containing species.
関連文献
IF 6.222
Building microsphere–nanosheet structures in N-doped carbon to improve its performance in the oxygen reduction reaction and vanadium redox flow batteriesIF 6.367
Engineering nanoporous organic frameworks to stabilize naked Au clusters: a charge modulation approachIF 6.222
Facile room-temperature growth of nanostructured CuBi2O4 for selective electrochemical reforming and photoelectrochemical hydrogen evolution reactionsIF 6.367
Biomaterials Science Emerging Investigators 2021IF 6.843
Small size yet big action: a simple sulfate anion templated a discrete 78-nuclearity silver sulfur nanocluster with a multishell structureIF 6.222
Enhanced power performance of an in situ sediment microbial fuel cell with steel-slag as the redox catalyst: I. electricity generationIF 6.367
Synthesis of aviation fuel from bio-derived isophoroneIF 6.367
CaMoO4 nanosheet arrays for efficient and durable water oxidation electrocatalysis under alkaline conditionsIF 6.222
Microscopic insights into long-range 1D ordering in a dense semi-disordered molecular overlayerIF 6.222
掲載誌
Journal of Materials Chemistry A
Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. The journals have a strong history of publishing quality reports of interest to interdisciplinary communities and providing an efficient and rigorous service through peer review and publication. The journals are led by an international team of Editors-in-Chief and Associate Editors who are all active researchers in their fields. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C. More than one Journal of Materials Chemistry journal may be suitable for certain fields and researchers are encouraged to submit their paper to the journal that they feel best fits for their particular article. Example topic areas within the scope of Journal of Materials Chemistry A are listed below. This list is neither exhaustive nor exclusive. Artificial photosynthesis Batteries Carbon dioxide conversion Catalysis Fuel cells Gas capture/separation/storage Green/sustainable materials Hydrogen generation Hydrogen storage Photocatalysis Photovoltaics Self-cleaning materials Self-healing materials Sensors Supercapacitors Thermoelectrics Water splitting Water treatment
![503070-57-3 - 2-[2-(6-Bromohexyloxy)ethoxymethyl]-1,3-dichlorobenzene](/structs/503/503070-57-3-bc25.webp "503070-57-3 - 2-[2-(6-Bromohexyloxy)ethoxymethyl]-1,3-dichlorobenzene")
おすすめサプライヤー
济南信立业化工有限公司成都同創源医薬科技有限公司
アルケム · デ · メキシコ、 S. A. C. V. の南通億迅化工有限公司常州コウワイグisible化工有限公司
カベルシュレップ GmbHクロマトグラフィー — アクセサリー Trottハイムバッハろ過有限会社襄樊ノール化学有限公司上海優拓医薬科技有限公司