Polypyrrole/tungsten carbide nanocomposites for electrochemical applications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F24%3A00588315" target="_blank" >RIV/61389013:_____/24:00588315 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.acs.org/doi/10.1021/acsapm.4c01143" target="_blank" >https://pubs.acs.org/doi/10.1021/acsapm.4c01143</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acsapm.4c01143" target="_blank" >10.1021/acsapm.4c01143</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Polypyrrole/tungsten carbide nanocomposites for electrochemical applications

Popis výsledku v původním jazyce

Tungsten carbide (WC) was used as an additive to prepare polypyrrole (PPy) composites due to its high electronic conductivity and chemical stability, as well as its high photo- and electrocatalytic activities. Herein, conducting PPy/WC composites were prepared via a single-step approach in the absence or presence of safranin as a morphology guiding agent. The influence of WC content and the addition of safranin on the electrical conductivity, morphology, and electrochemical properties were investigated. PPy composites prepared in the absence of safranin have a globular morphology, while the addition of safranin forms 1D PPy nanostructures. In all cases, WC particles were fully embedded in the PPy matrix as proven with Raman spectroscopy. The composites prepared in the presence of safranin have shown higher conductivity and gravimetric capacitance than those prepared without safranin. The highest electrical conductivities of 19.6 and 38.9 S cm–1 were obtained for the composites prepared with 90 wt % of the WC content in the absence or presence of safranin, respectively. The highest capacitance of 242 F g–1 with a retention of 95% after 1000 cycles was achieved in the case of the PPy/WC composite prepared with 5 wt % of WC in the presence of safranin.

Název v anglickém jazyce

Polypyrrole/tungsten carbide nanocomposites for electrochemical applications

Popis výsledku anglicky

Tungsten carbide (WC) was used as an additive to prepare polypyrrole (PPy) composites due to its high electronic conductivity and chemical stability, as well as its high photo- and electrocatalytic activities. Herein, conducting PPy/WC composites were prepared via a single-step approach in the absence or presence of safranin as a morphology guiding agent. The influence of WC content and the addition of safranin on the electrical conductivity, morphology, and electrochemical properties were investigated. PPy composites prepared in the absence of safranin have a globular morphology, while the addition of safranin forms 1D PPy nanostructures. In all cases, WC particles were fully embedded in the PPy matrix as proven with Raman spectroscopy. The composites prepared in the presence of safranin have shown higher conductivity and gravimetric capacitance than those prepared without safranin. The highest electrical conductivities of 19.6 and 38.9 S cm–1 were obtained for the composites prepared with 90 wt % of the WC content in the absence or presence of safranin, respectively. The highest capacitance of 242 F g–1 with a retention of 95% after 1000 cycles was achieved in the case of the PPy/WC composite prepared with 5 wt % of WC in the presence of safranin.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

ACS Applied Polymer Materials

ISSN

2637-6105

e-ISSN

2637-6105

Svazek periodika

6

Číslo periodika v rámci svazku

14

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

8244-8253

Kód UT WoS článku

001272796900001

EID výsledku v databázi Scopus

2-s2.0-85198960053