3D cellular lattice like-Ti3C2 MXene based aerogels embedded with metal selenides particles for energy storage and water splitting applications
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F23%3AA2402LS6" target="_blank" >RIV/61988987:17310/23:A2402LS6 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0016236123014692?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0016236123014692?via%3Dihub</a>
DOI - Digital Object Identifier
—
Alternative languages
Result language
angličtina
Original language name
3D cellular lattice like-Ti3C2 MXene based aerogels embedded with metal selenides particles for energy storage and water splitting applications
Original language description
In this research, we have designed novel three-dimensional (3D) Ti3C2 MXene/rGO composite aerogels (MGA) integrated with octahedron-like NiSe2 (NS), with different mass loadings of MXene (20 wt% and 40 wt%). Resultant aerogels developed into a cellular lattice like network that significantly improved the contact area among active material and electrolyte. 3D spongy scaffold of MGA boosted the mass diffusion rate, and good electrical conductivity of MXene and rGO provided fast transport of charges during the electrochemical tests, which endowed superior supercapacitor and water splitting performances. Electrode with optimized MXene/rGO ratio i.e., NSMGA-40, exhibited a remarkable specific capacity of 289.7 mAh g-1 at current density of 1 A g-1 and excellent durability of 92.5% over 5000 charge/discharge cycles at 12 A g-1 in a three electrode system for supercapacitor. Meanwhile, as a bifunctional electrocatalyst, NSMGA-40 required a low overpotential of 97 mV and 262 mV to reach 10 mA cm-2 for HER and OER activity, respectively, in alkaline media. The values of Tafel slopes were as small as 89 mV dec- 1 (HER) and 75 mV dec- 1 (OER), signifying accelerated electron-transfer kinetics. Furthermore, in both cases, NSMGA-40 electrocatalyst withstood a long-term stability test of 10 h. Hence, the obtained results can be manifested for the structural and componential engineering that maximizes the synergetic effects from Ti3C2 MXene, rGO, and NS. Indeed, our fabricated aerogels offer a valuable reference for the fabrication of 3D multicomponent electrode materials for energy storage and conversion applications.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10400 - Chemical sciences
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
FUEL
ISSN
0016-2361
e-ISSN
—
Volume of the periodical
—
Issue of the periodical within the volume
22.7.2023
Country of publishing house
GB - UNITED KINGDOM
Number of pages
12
Pages from-to
1-12
UT code for WoS article
001024946400001
EID of the result in the Scopus database
—