Evidence map›Paper›PMID 40584370›Full record

ArticleACS omega2025

Preparation of Activated Carbon from Popcorn by Potassium Nitrate and Its Application in Supercapacitors.

Chih-Yung Wu, Yi-Sheng Chen, Chen-Yu Lee, Chun-Fu Huang, Yu-An Tsai, Tzu-Hsien Hsieh

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Article in ACS omega, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

6 authors.

Chih-Yung WuDepartment of Aeronautics and Astronautics, National Cheng Kung University, 1 University Road, Tainan 701401, Taiwan.ORCID https://orcid.org/0000-0001-6447-385X
Yi-Sheng ChenInternational Degree Program on Energy Engineering, National Cheng Kung University, 1 University Road, Tainan 701401, Taiwan.ORCID https://orcid.org/0009-0003-2358-298X
Chen-Yu LeeInternational Degree Program on Energy Engineering, National Cheng Kung University, 1 University Road, Tainan 701401, Taiwan.
Chun-Fu HuangDepartment of Aeronautics and Astronautics, National Cheng Kung University, 1 University Road, Tainan 701401, Taiwan.
Yu-An TsaiDepartment of Aeronautics and Astronautics, National Cheng Kung University, 1 University Road, Tainan 701401, Taiwan.
Tzu-Hsien HsiehGreen Technology Research Institute, CPC Corporation, Taiwan, Kaohsiung 811251, Taiwan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The efficient and environmentally friendly preparation of activated carbon is an important issue within the field. In the present study, fluffy biomass derived from popcorn was treated as the raw material and subsequently carbonized with the addition of potassium nitrate in ambient air. It is noteworthy that this preparation method does not employ strong bases or other environmentally harmful chemicals, such as potassium hydroxide or anhydride chloride. The prepared activated carbon was subjected to a comprehensive analysis utilizing scanning electron microscopy, transmission electron microscopy, X-ray diffraction, elemental analysis, nitrogen adsorption-desorption isotherms, Raman spectroscopy, and X-ray photoelectron spectroscopy to investigate the influence of preparation parameters and environmental conditions on the physicochemical properties. The postprocessed activated carbon was deemed suitable for the fabrication of supercapacitors. The resulting supercapacitors were evaluated through cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and galvanostatic charge-discharge (GCD) tests to assess their electrochemical properties. The results indicated that activated carbon treated in ambient air exhibited superior surface characteristics, and the supercapacitors fabricated with this activated carbon demonstrated enhanced performance. Notably, the supercapacitor constructed with the best-activated carbon achieved the highest specific capacitance of 93.20 F/g and an energy density of 23.59 W h/kg.

Identifiers

PMID40584370
PMCPMC12199074

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