Lamellar composite membrane with acid-base pair anchored …
2020年5月1日 · Herein, we demonstrate a fabrication of acid-base pair anchored lamellar composite membrane with simultaneously enhanced proton conduction and water stability, by layer-by-layer assembling dopamine modified GO (DGO) nanosheets and phosphorylated bacterial cellulose (PBC n).
Hydrogen Bonding: A Channel for Protons to Transfer through Acid−Base Pairs
By hydrogen bonds forming and breaking between acid−base pairs and water molecules, protons transport directly through these poorly hydrophilic zones.
Preparation of proton selective membranes through constructing …
2015年2月1日 · To overcome this issue, a simple strategy for constructing H + transfer channels in the membranes was proposed through the formation of acid–base pairs between basic 1-vinylimidazole (VI) monomers and acidified sulfonated poly (2, …
Biofunctionalized nanofiber hybrid proton exchange membrane …
2020年3月15日 · Enhanced proton conductivities of nanofibrous composite membranes enabled by acid-base pairs under hydrated and anhydrous conditions
Do acid–base interactions really improve the ion conduction in a proton …
Generating acid–base interactions between sulfonic acid groups in a proton exchange membrane (PEM) and the incorporation of basic groups are effective approaches to improving the physicochemical properties of a membrane.
One-pot synthesis of silica–titania binary nanoparticles with acid–base ...
2017年8月7日 · In this study, a facile one-pot biomimetic mineralization approach is proposed for the construction of binary SiO 2 –TiO 2 nanoparticles with a tunable ratio of silica to titania. Then the nanoparticles are functionalized by acid–base pairs and introduced into a Nafion matrix to fabricate novel hybrid membranes.
In situ programming acid-base pair proton-conductive channels …
2023年2月14日 · The -NH- in the NH-Zr framework could form a large hydrogen bonding network with the sulfonic acid groups of PFSA via acid-base pairs, allowing for faster and smoother proton migration, significantly improving proton conduction in the hybrid membranes and resulting in excellent cell performance.
Novel Proton Exchange Membrane with Long-Range Acid–Base-Pair Proton …
2021年2月26日 · Polymer quantum dots with inherent ordered acid-base pairs are utilized and anchored on dopamine-coated graphene oxide, thus forming into long-range conducting pathways that impart to the composite membrane significantly enhanced proton conduction ability.
In Situ Programming Acid-Base Pair Proton-Conductive Channels …
2022年12月6日 · The development of rapid and dependable proton transport channels is crucial for proton exchange membrane fuel cells (PEMFCs) operating in low humidity conditions. Herein, an NH-Zr framework rich in basic sites was constructed in situ in a perfluorosulfonic acid solution, and PFSA-NH-Zr hybrid proton exchange membranes were prepared.
Efficient proton exchange membranes based on bifunctional
2023年9月7日 · Thanks to the flexibility and bifunctionality of the UiO-66-NH-SO 3 H sub-structure fragment, an effective acid–base pair was successfully constructed between UiO-66-NH-SO 3 H and SPEEK to form an ion cluster to accelerate proton conduction.