In this article, an exquisite flexible hybrid MoS/graphene free-standing electrocatalyst paper was fabricated by a one-step solvothermal process. The assembled MoS/graphene catalysts exhibit significantly enhanced electrocatalytic activity and cycling stability towards the splitting of water in acidic solution. Furthermore, a strategic balance of abundant active sites at the edge of the S-Mo-S layers with efficient electron transfer in the MoS/graphene hybrid catalyst plays a key role in controlling the electrochemical performance of the MoS nanosheets. Most importantly, the hybrid MoS/graphene nanosheet paper shows excellent flexibility and high electrocatalytic performance under the various bending states. This work demonstrates an opportunity for the development of flexible electrocatalysts, which have potential applications in renewable energy conversion and energy storage systems.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9078904 | PMC |
http://dx.doi.org/10.1039/c8ra01226a | DOI Listing |
ACS Appl Mater Interfaces
December 2024
Hebei Key Laboratory of Applied Chemistry, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China.
Transition-metal dichalcogenides (TMDs) have recently emerged as promising electrocatalysts for the hydrogen evolution reaction owing to their tunable electronic properties. However, TMDs still encounter inherent limitations, including insufficient active sites, poor conductivity, and instability; thus, their performance breakthrough mainly depends on structural optimization in hybridization with a conductive matrix and phase modulation. Herein, a 1T/2H-MoS/rGO hybrid was rationally fabricated, which is characterized by biphasic 1T/2H-MoS nanosheets in situ vertically anchored on reduced graphene oxide (rGO) with strong C-O-Mo covalent coupling.
View Article and Find Full Text PDFMolecules
November 2024
Department of Electrical and Biological Physics, Kwangwoon University, Seoul 01897, Republic of Korea.
Mikrochim Acta
October 2024
School of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan, Hubei, 430065, People's Republic of China.
An electrochemical biosensor was created to identify the liver cancer marker alpha-fetoprotein (AFP) by employing nanocomposite materials. A combination of reduced graphene oxide (rGO) and molybdenum disulfide (MoS) was selected as the substrate material for the sensor to prepare the PtNPs/MoS@rGO electrochemical immunosensor. Among them, rGO has strong conductivity and MoS provides a large surface area for the anchoring of PtNPs for better attachment to the hybridized nanomaterials.
View Article and Find Full Text PDFGels
August 2024
School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea.
ACS Appl Mater Interfaces
October 2024
School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510641, China.
The development of MoS as a cathode electrocatalyst for lithium-oxygen batteries (LOBs) has attracted considerable attention due to its natural abundance, excellent catalytic activity, and chemical stability. However, the sluggish and complicated kinetic of insulating and bulk discharge products on the electrode surface is one of major factors for MoS as a cathode for high performance LOBs. Defect engineering of an electrocatalyst and its hybridization with highly conductive frameworks are effective strategies to address this critical issue.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!