Evidence map›Paper›PMID 40605498›Full record

ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2025

Ion-Pair Interactions in Polyphenylene-Based Quaternized Membranes Designed for Phosphoric Acid-Doped Proton Exchange Membranes for High-Temperature Fuel Cells.

Lin Guo, Kenji Miyatake, Ahmed Mohamed Ahmed Mahmoud, Fanghua Liu, Fang Xian, Vikrant Yadav, Xiaofeng Hao, Shuanjin Wang, Yuezhong Meng

Abstract read
In one paragraph

Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Lin GuoClean Energy Research Center, University of Yamanashi, Kofu, Yamanashi, 400-8510, Japan.
Kenji MiyatakeClean Energy Research Center, University of Yamanashi, Kofu, Yamanashi, 400-8510, Japan.ORCID https://orcid.org/0000-0001-5713-2635
Ahmed Mohamed Ahmed MahmoudClean Energy Research Center, University of Yamanashi, Kofu, Yamanashi, 400-8510, Japan.
Fanghua LiuClean Energy Research Center, University of Yamanashi, Kofu, Yamanashi, 400-8510, Japan.
Fang XianClean Energy Research Center, University of Yamanashi, Kofu, Yamanashi, 400-8510, Japan.
Vikrant YadavClean Energy Research Center, University of Yamanashi, Kofu, Yamanashi, 400-8510, Japan.
Xiaofeng HaoSchool of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China.
Shuanjin WangSchool of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China.
Yuezhong MengSchool of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China.

Funding

Japan Society for the Promotion of Science 23H02058Ministry of Education, Culture, Sports, Science and Technology JPMXP1122712807
6 · The paper itself

Abstract

Phosphoric acid (PA)-doped proton exchange membranes (PEMs) face significant challenges owing to the loss of PA, particularly under high humidity conditions. Ion-pair interactions between PA and quaternary ammonium (QA) groups can effectively mitigate PA loss. Herein, polyphenylene-based quaternized membranes (BAF-QAF and C7-QAF) comprising distinct hydrophobic moieties [BAF = (perfluoropropane-2,2-diyl)dibenzene and C7 = 1,1-diphenylcycloheptane] and fluorenyl groups with pendant QA head groups are designed and used as PA-doped PEMs with low or no fluorine contents to realize high-temperature and low-humidity operability. The resulting membranes exhibited excellent PA retention, maintaining >85% of their initial proton conductivities at 90% relative humidity after 10 humidity cycles. PA-doped membranes PA-C7-QAF and PA-BAF-QAF exhibit superior proton conductivities of 60.3 and 58.4 mS cm

Indexed as

high‐temperature fuel cellsion‐pair interactionphosphoric acid dopingpolyphenyleneproton exchange membranes

Identifiers

PMID40605498
PMCPMC12499463

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.