Natural fibrils derived from biomass were used as a template to synthesize uniformly decorated nanoparticles (10-12 nm) of molybdenum carbide (MoC) and molybdenum nitride (MoN) supported on carbon. The nanoparticles have been synthesized through the carburization and nitridation of molybdenum on cotton fibrils, using a high-temperature solid-state reaction. The catalyst exhibits an onset potential of 110 mV and an overpotential of 167 mV to derive a cathodic current density of 10 mA cm. The electrocatalyst also demonstrates excellent long-term durability of more than 2500 cycles in acidic media with a Tafel slope value of 62 mV dec.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6714538PMC
http://dx.doi.org/10.1021/acsomega.9b02321DOI Listing

Publication Analysis

Top Keywords

uniformly decorated
8
molybdenum
4
decorated molybdenum
4
molybdenum carbide/nitride
4
carbide/nitride nanostructures
4
nanostructures biomass
4
biomass templates
4
templates hydrogen
4
hydrogen evolution
4
evolution reaction
4

Similar Publications

Danio rerio, commonly known as zebrafish, is an established model organism for the developmental and cell biology studies. Although significant progress has been made in the analysis of the D. rerio genome, cytogenetic studies face challenges due to the unclear identification of chromosomes.

View Article and Find Full Text PDF

Design and manufacture of cathode materials, with suitable pore structure and high electrical conductivity to matching zinc anode, solving the problem of dissolution and structural degradation of cathode materials for zinc ion batteries (ZIBs), is great significance to the development of ZIBs. Herein, Vanadium Nitride (VN) uniformly decorated N-doped micro/mesoporous carbon nanofibers (VN/N-MCNF) with appropriate porous and reactive sites for Zn is prepared by using V-MOF, as important precursor via electrostatic spinning and pyrolysis technique. As a cathode electrode for ZIBs, the VN/N-MCNF is suitable for diffusion and adsorption of large-sized solvated structured [Zn(HO)], for its abundant micro/mesoporous structure and good electrical conductivity.

View Article and Find Full Text PDF
Article Synopsis
  • Au nanoparticles (NPs) enhance the field electron emission (FEE) performance of BiS nanorods (NRs), lowering the turn-on field from 3.7 to 2.7 V/μm and increasing maximum emission current density from 138 to 604.8 μA/cm.
  • The BiS nanorods, around 120 nm in diameter, form nanoflowers, while 5-10 nm Au NPs are uniformly attached to their surfaces, creating an Au/BiS composite.
  • This improvement in FEE is due to reduced work function and more emitting sites provided by the decoration of Au NPs, as confirmed by various analysis techniques like FESEM/TEM, XRD,
View Article and Find Full Text PDF

Electrochemical oxidation-driven formation of nickel/nickel-based compounds on hollow carbon shells: Mechanistic insights and energy storage applications.

J Colloid Interface Sci

February 2025

Department of Chemical and Materials Engineering, The University of Auckland, Auckland 1142, New Zealand; MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, New Zealand. Electronic address:

Hydrangea-like nickel/nickel-based compounds decorated hollow carbon shells were synthesized through low-temperature calcination and a facile electrochemical oxidation process. This three-dimensional hollow hierarchical structure ensures intimate contact between the electrically conductive nickel (Ni) substrate and uniformly distributed electrochemically active nickel-based compounds. This hierarchical structure offers abundant active sites and accessible pathways, maximizing energy storage, particularly during rapid charge-discharge cycles.

View Article and Find Full Text PDF

In this study, we report the degradation of smooth and rough lipopolysaccharides (LPS) from Gram-negative bacteria and of lipoteichoic acid (LTA) from Gram-positive bacteria by peptide-coated TiO nanoparticles (TiO NPs). While bare TiO NPs displayed minor binding to both LPS and LTA, coating TiO NPs with the antimicrobial peptide LL-37 dramatically increased the level of binding to both LPS and LTA, decorating these uniformly. Importantly, peptide coating did not suppress reactive oxygen species generation of TiO NPs; hence, UV illumination triggered pronounced degradation of LPS and LTA by peptide-coated TiO NPs.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!