Facile and efficient synthesis of polyacrylonitrile-based functional fibers and its sorption properties of perfluorooctane sulfonate and perfluorooctanoate

Chen, Wei; Zhang, Xiaoping; Zhang, Yudong; Mamadiev, Mairambek

doi:10.1016/j.molliq.2017.06.090

Cited by 12 publications

(1 citation statement)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, the XPS spectrum of the QAPBI- membrane was measured, and the result is shown in Figure S2 . In C1’s spectra, there are two characteristic peaks at 286.3 eV and 284.5 eV, which can be attributed to C−N and C−C, respectively [ 29 ]. In N1’s spectra, three characteristic peaks appear at 401.0 eV (the nitrogen in quaternary ammonium groups), 399.3 eV (N−H) and 397.8 eV (−N=) [ 30 ].…”

Section: Resultsmentioning

confidence: 99%

Electrochemical Conversion of CO2 to CO Utilizing Quaternized Polybenzimidazole Anion Exchange Membrane

Cao

Zhang

et al. 2023

Membranes

View full text Add to dashboard Cite

CO is a significant product of electrochemical CO2 reduction (ECR) which can be mixed with H2 to synthesize numerous hydrocarbons. Membranes, as separators, can significantly influence the performance of ECR. Herein, a series of quaternized polybenzimidazole (QAPBI) anion exchange membranes with different quaternization degrees are prepared for application in ECR. Among all QAPBI membranes, the QAPBI-2 membrane exhibits optimized physico-chemical properties. In addition, the QAPBI-2 membrane shows higher a Faraday efficiency and CO partial current density compared with commercial Nafion 117 and FAA-3-PK-130 membranes, at −1.5 V (vs. RHE) in an H-type cell. Additionally, the QAPBI-2 membrane also has a higher Faraday efficiency and CO partial current density compared with Nafion 117 and FAA-3-PK-130 membranes, at −3.0 V in a membrane electrode assembly reactor. It is worth noting that the QAPBI-2 membrane also has excellent ECR stability, over 320 h in an H-type cell. This work illustrates a promising pathway to obtaining cost-effective membranes through a molecular structure regulation strategy for ECR application.

show abstract

Section: Resultsmentioning

confidence: 99%