Phosphorus and nitrogen-containing carbons obtained by the carbonization of conducting polyaniline complex with phosphites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F17%3A00475503" target="_blank" >RIV/61389013:_____/17:00475503 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.electacta.2017.06.036" target="_blank" >http://dx.doi.org/10.1016/j.electacta.2017.06.036</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.electacta.2017.06.036" target="_blank" >10.1016/j.electacta.2017.06.036</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Phosphorus and nitrogen-containing carbons obtained by the carbonization of conducting polyaniline complex with phosphites

Popis výsledku v původním jazyce

Non-conducting polyaniline base interacts with organic phosphites to a conducting product resembling classical polyaniline salts. Polyaniline-phosphite complexes were carbonized in inert atmosphere at 650 °C to phosphorus- and nitrogen-containing carbons. The resulting materials were tested with respect to their electrochemical performance by considering their capacitive properties and electrocatalytic activity towards oxygen reduction reaction (ORR). Carbonized polyaniline-diphenyl phosphite displayed the highest capacitance among all investigated carbons, reaching the values above 100 F g-1 at 5 mV s-1 in concentrated potassium hydroxide solution, while the same material also displayed the highest ORR activity in alkaline media. Considering small specific surface area of obtained carbon materials, the synthetic procedures lead to the surface structures which are exceptionally active for charge storage and in electrocatalysis of ORR. It is proposed that further improvement of electrochemical properties can be obtained by preserving the type of the present surface functional groups with simultaneous increase of their number by the increase of the specific surface.

Název v anglickém jazyce

Phosphorus and nitrogen-containing carbons obtained by the carbonization of conducting polyaniline complex with phosphites

Popis výsledku anglicky

Non-conducting polyaniline base interacts with organic phosphites to a conducting product resembling classical polyaniline salts. Polyaniline-phosphite complexes were carbonized in inert atmosphere at 650 °C to phosphorus- and nitrogen-containing carbons. The resulting materials were tested with respect to their electrochemical performance by considering their capacitive properties and electrocatalytic activity towards oxygen reduction reaction (ORR). Carbonized polyaniline-diphenyl phosphite displayed the highest capacitance among all investigated carbons, reaching the values above 100 F g-1 at 5 mV s-1 in concentrated potassium hydroxide solution, while the same material also displayed the highest ORR activity in alkaline media. Considering small specific surface area of obtained carbon materials, the synthetic procedures lead to the surface structures which are exceptionally active for charge storage and in electrocatalysis of ORR. It is proposed that further improvement of electrochemical properties can be obtained by preserving the type of the present surface functional groups with simultaneous increase of their number by the increase of the specific surface.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

<a href="/cs/project/GA16-02787S" target="_blank" >GA16-02787S: Vodivé polymerní kryogely</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Electrochimica acta

ISSN

0013-4686

e-ISSN

—

Svazek periodika

246

Číslo periodika v rámci svazku

20 August

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

443-450

Kód UT WoS článku

000406942800050

EID výsledku v databázi Scopus

2-s2.0-85020914842