Synthesis of Polyaniline Nanoparticles With High Surface Area for CO2 and N2 Sorption

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Synthesis of Polyaniline Nanoparticles With High Surface Area for CO2 and N2 Sorption

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Synthesis of Polyaniline Nanoparticles With High Surface Area for CO2 and N2 Sorption

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/EH22_008%2F0004558" target="_blank" >EH22_008/0004558: Pokročilé víceškálové materiály pro nosné klíčové technologie</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Natural Sciences

ISSN

2698-6248

e-ISSN

2698-6248

Svazek periodika

5

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

12

Strana od-do

1-12

Kód UT WoS článku

001575591600001

EID výsledku v databázi Scopus

2-s2.0-105016823706