Highly catalytically active composite of palladium nanoparticles covalently bound to chitosan nanofibers via dialdehyde cellulose

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F25%3A63593339" target="_blank" >RIV/70883521:28110/25:63593339 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/70883521:28610/25:63593339

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0141813024096120?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0141813024096120?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijbiomac.2024.138801" target="_blank" >10.1016/j.ijbiomac.2024.138801</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Highly catalytically active composite of palladium nanoparticles covalently bound to chitosan nanofibers via dialdehyde cellulose

Popis výsledku v původním jazyce

This study introduces a novel, sustainable method for synthesizing sub-5 nm palladium nanoparticles (PdNPs) and covalently binding them to chitosan nanofibers (CHITs) using fully oxidized dialdehyde cellulose (DAC). Notably, the DAC acts not only as a reducing and stabilizing agent for PdNPs, but also as a linker for their rapid and spontaneous covalent attachment to CHITs via Schiff base chemistry. This unique approach yields PdNPs with a narrow size distribution (4.7 ± 0.4 nm) and enables the preparation of a stable nanofibrous composite with excellent catalytic efficiency for 4-nitrophenol reduction (TOFPdNPs = 75.2 min−1, kPdNPs = 1.34 min−1; TOFPdNPs-CHIT = 1.18 min−1). The composite&apos;s high reusability, attributed to strong covalent binding, marks a significant improvement over traditional PdNPs composites that rely on weak interactions. This is demonstrated on a model of a catalytic device, reflecting industrial applications.

Název v anglickém jazyce

Highly catalytically active composite of palladium nanoparticles covalently bound to chitosan nanofibers via dialdehyde cellulose

Popis výsledku anglicky

This study introduces a novel, sustainable method for synthesizing sub-5 nm palladium nanoparticles (PdNPs) and covalently binding them to chitosan nanofibers (CHITs) using fully oxidized dialdehyde cellulose (DAC). Notably, the DAC acts not only as a reducing and stabilizing agent for PdNPs, but also as a linker for their rapid and spontaneous covalent attachment to CHITs via Schiff base chemistry. This unique approach yields PdNPs with a narrow size distribution (4.7 ± 0.4 nm) and enables the preparation of a stable nanofibrous composite with excellent catalytic efficiency for 4-nitrophenol reduction (TOFPdNPs = 75.2 min−1, kPdNPs = 1.34 min−1; TOFPdNPs-CHIT = 1.18 min−1). The composite&apos;s high reusability, attributed to strong covalent binding, marks a significant improvement over traditional PdNPs composites that rely on weak interactions. This is demonstrated on a model of a catalytic device, reflecting industrial applications.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/GA23-07361S" target="_blank" >GA23-07361S: Syntéza zlatých nanočástic pro SERS a katalýzu řízená pomocí selektivně oxidovaných polysacharidů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

International Journal of Biological Macromolecules

ISSN

0141-8130

e-ISSN

1879-0003

Svazek periodika

291

Číslo periodika v rámci svazku

Neuveden

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

nestránkováno

Kód UT WoS článku

001394905600001

EID výsledku v databázi Scopus

2-s2.0-85212879244