In situ cross-linking construction of 3D mesoporous bimetallic phosphide-in-carbon superstructure with atomic interface toward enhanced sodium ion storage performance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F21%3A10247491" target="_blank" >RIV/61989100:27640/21:10247491 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27740/21:10247491

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1385894720335737" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1385894720335737</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cej.2020.127449" target="_blank" >10.1016/j.cej.2020.127449</a>

Jazyk výsledku

angličtina

Název v původním jazyce

In situ cross-linking construction of 3D mesoporous bimetallic phosphide-in-carbon superstructure with atomic interface toward enhanced sodium ion storage performance

Popis výsledku v původním jazyce

Constructing heterostructures are capable of offering fascinating performance for electronics owing to the built-in charge transfer driving force. However, exploring a universal methodology to rationally design and control-lable synthesis of heterostructure with high stability of interface is a big challenge. Also the synergistic effect of the heterointerface in the composites remains to be clarified. Here, we report three-dimensional (3D) FeP/CoP heterostructure embedded within N-doped carbon aerogel (FeP/CoP-NA) through an in situ cross-linking and phosphorization process. In such a 3D hybrid, the FeP/CoP heterocrystals are wrapped by N-doped carbon which form a core-shell structure. Benefiting from the unique porous network induced by N-doped carbon, the con-ducting highway is built to promote the ion and electron fast diffusion. This structure can accommodate the volume change of FeP/CoP, which prevent the agglomeration and act as the protecting layer to maintain the integrity of the interface. Impressively, the atomic interface between FeP/CoP is successfully constructed, which could not only introduce enhanced capacitive contribution to facilitate electron transport, but also provide extra active sites to adsorb more Na+ proved by both experiments and density functional theory (DFT) calculations. As expected, FeP/CoP-NA electrode demonstrates an excellent rate capability of 342 mAh g(-1) at a current of 5 A g(-1) current density. , a high specific capacity of 525 mAh g(-1) at 0.2 A g(-1), and a long cycling stability over 8000 cycles at high

Název v anglickém jazyce

In situ cross-linking construction of 3D mesoporous bimetallic phosphide-in-carbon superstructure with atomic interface toward enhanced sodium ion storage performance

Popis výsledku anglicky

Constructing heterostructures are capable of offering fascinating performance for electronics owing to the built-in charge transfer driving force. However, exploring a universal methodology to rationally design and control-lable synthesis of heterostructure with high stability of interface is a big challenge. Also the synergistic effect of the heterointerface in the composites remains to be clarified. Here, we report three-dimensional (3D) FeP/CoP heterostructure embedded within N-doped carbon aerogel (FeP/CoP-NA) through an in situ cross-linking and phosphorization process. In such a 3D hybrid, the FeP/CoP heterocrystals are wrapped by N-doped carbon which form a core-shell structure. Benefiting from the unique porous network induced by N-doped carbon, the con-ducting highway is built to promote the ion and electron fast diffusion. This structure can accommodate the volume change of FeP/CoP, which prevent the agglomeration and act as the protecting layer to maintain the integrity of the interface. Impressively, the atomic interface between FeP/CoP is successfully constructed, which could not only introduce enhanced capacitive contribution to facilitate electron transport, but also provide extra active sites to adsorb more Na+ proved by both experiments and density functional theory (DFT) calculations. As expected, FeP/CoP-NA electrode demonstrates an excellent rate capability of 342 mAh g(-1) at a current of 5 A g(-1) current density. , a high specific capacity of 525 mAh g(-1) at 0.2 A g(-1), and a long cycling stability over 8000 cycles at high

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

<a href="/cs/project/EF16_013%2F0001791" target="_blank" >EF16_013/0001791: IT4Innovations národní superpočítačové centrum - cesta k exascale</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Chemical engineering journal

ISSN

1385-8947

e-ISSN

—

Svazek periodika

413

Číslo periodika v rámci svazku

June

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

9

Strana od-do

—

Kód UT WoS článku

000638225400005

EID výsledku v databázi Scopus

2-s2.0-85094556666