Synthesis of Polyaniline Nanoparticles With High Surface Area for CO2 and N2 Sorption
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13440%2F25%3A43899280" target="_blank" >RIV/44555601:13440/25:43899280 - isvavai.cz</a>
Result on the web
<a href="https://maint.onlinelibrary.wiley.com/" target="_blank" >https://maint.onlinelibrary.wiley.com/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/ntls.70025" target="_blank" >10.1002/ntls.70025</a>
Alternative languages
Result language
angličtina
Original language name
Synthesis of Polyaniline Nanoparticles With High Surface Area for CO2 and N2 Sorption
Original language description
Polyaniline nanoparticles (PANI NPs) in emeraldine salt (ES) and emeraldine base (EB) forms were synthesized via oxidative polymerization, with and without HCl stabilization, to investigate how subtle synthetic modifications affect structural, morphological, and gas sorption properties. Fourier-transform infrared (FTIR) analysis confirmed the expected chemical structures and demonstrated that HCl acts as a protonic dopant and a morphological modifier. Scanning electron microscopy (SEM) and dynamic light scattering (DLS) measurements showed that HCl stabilization results in smaller, more uniform NPs and improved dispersion, particularly in the protonated (ES) form. Nitrogen (N2) and carbon dioxide (CO2) sorption studies revealed that PANI EB naturally exhibits a higher surface area and porosity due to its open-chain structure. The addition of HCl has a stronger effect on PANI ES, increasing its pore volume and gas adsorption capacity by disrupting interchain interactions. Notably, CO2 uptake increased from 24.6 ? 1.2 to 30.6 ? 2.1 cm3/g upon stabilization, and the N2 uptake for native PANI EB was 144.4 ? 1.3 cm3/g. This work highlights the structure?function relationship between protonation state, morphology, and gas sorption behavior. By fine tuning synthesis parameters, PANI NPs with exceptional surface areas (up to 70.8 ? 2.1 m2/g) were achieved, positioning them as promising candidates for gas sorption and related environmental applications.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/EH22_008%2F0004558" target="_blank" >EH22_008/0004558: Advanced MUltiscaLe materials for key Enabling Technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Natural Sciences
ISSN
2698-6248
e-ISSN
2698-6248
Volume of the periodical
5
Issue of the periodical within the volume
4
Country of publishing house
DE - GERMANY
Number of pages
12
Pages from-to
1-12
UT code for WoS article
001575591600001
EID of the result in the Scopus database
2-s2.0-105016823706