“Fishbone” Design of Amino/N-Spirocyclic Cations toward High-Performance Poly(triphenylene piperidine) Anion-Exchange Membranes for Fuel Cells
Source abstract
Abstract
N -Spirocyclic cations have excellent alkali resistance stability, and precise design of the structure of N -spirocyclic anion-exchange membranes (AEMs) improves their comprehensive performance. Here, we design and synthesize high-performance poly(triphenylene piperidine) membranes based on the “fishbone” design of amino/ N -spirocyclic cations. The “fishbone” design does not disrupt the overall stabilized conformation but promotes a microphase separation structure, while exerting the synergistic effect of piperidine cations and spirocyclic cations, resulting in a membrane with good conductivity and alkali resistance stability. The hydroxide conductivity of the QPTPip-ASU-X membrane reached up to 133.5 mS cm –1 at 80 °C. The QPTPip-ASU-15 membrane was immersed in a 2 M NaOH solution at 80 °C for 1200 h, and the conductivity was maintained at 91.02%. In addition, the QPTPip-ASU-5 membrane had the highest peak power density of 255 mW cm –2 .
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Fuel Cells and Related Materials · Membrane-based Ion Separation Techniques · Electrocatalysts for Energy Conversion
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China
Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, China
School of Chemistry and Life Sciences, Changchun University of Technology, Changchun 130012, China
Key Laboratory of Advanced Functional Polymer Membrane Materials of Jilin Province, Changchun 130012, China
Funding
Department of Science and Technology of Jilin Province · Jilin Province Development and Reform Commission · National Natural Science Foundation of China
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