Electrochemical water-splitting to produce hydrogen is potential to substitute the traditional industrial coal gasification, but the oxygen evolution kinetics at the anode remains sluggish. In this paper, sea urchin-like Fe doped NiS catalyst growing on nickel foam (NF) substrate is constructed via a simple two-step strategy, including surface iron activation and post sulfuration process. The NF-Fe-NiS obtains at temperature of 130 °C (NF-Fe-NiS-130) features nanoneedle-like arrays which are vertically grown on the particles to form sea urchin-like morphology, features high electrochemical surface area. As oxygen evolution catalyst, NF-Fe-NiS-130 exhibits excellent oxygen evolution activities, fast reaction kinetics, and superior reaction stability. The excellent OER performance of sea urchin-like NF-Fe-NiS-130 is mainly ascribed to the high-vertically dispersive of nanoneedles and the existing Fe dopants, which obviously improved the reaction kinetics and the intrinsic catalytic properties. The simple preparation strategy is conducive to establish high-electrochemical-interface catalysts, which shows great potential in renewable energy conversion.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/cphc.202300414 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Covalent organic framework-based solid phase microextraction coupled with electrospray ionization mass spectrometry for the quantitative assessment of abnormal bile acids by triclosan exposure in mice.
Talanta
December 2024
State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon Tong, Hong Kong, SAR, China. Electronic address:
Bile acids, a representative diagnostic indicator of liver function, are used to visualize the extent of liver injury. Numerous studies have shown that triclosan (TCS) exposure leads to abnormal bile acid metabolism. As a result, there is a requirement to develop a fast and smart means to quantitatively monitor abnormal bile acids from exposure to triclosan in bio-sample.
View Article and Find Full Text PDFHigh energy storage density in high-temperature capacitor films at low electric fields.
J Colloid Interface Sci
December 2024
State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China; Key Laboratory of Multi-Spectral Absorbing Materials and Structures of Ministry of Education, University of Electronic Science and Technology of China, Chengdu 610054, China. Electronic address:
High-power applications, particularly in electromagnetic catapults, electric vehicles, and aerospace, necessitate the use of polymer dielectrics that demonstrate reliable performance in high-temperature environments. This study focuses on synthesizing three distinct morphologies of innovative wide-bandgap high-dielectric materials-hydroxyapatite (HAP). By conducting a combination of experiments and Multiphysics finite element simulations, a comprehensive comparison was made regarding the properties exhibited by three polyimide (PI) composites: PI/sea urchin-like HAP, PI/spherical HAP, and PI/rodlike HAP.
View Article and Find Full Text PDFSimulation, prediction and optimization for synthesis and heavy metals adsorption of schwertmannite by machine learning.
Environ Res
January 2025
School of Land Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China.
Due to its sea urchin-like structure, Schwertmannite is commonly applied for heavy metals (HMs) pollutant adsorption. The adsorption influence parameters of Schwertmannite are numerous, the traditional experimental enumeration is powerless. In recent years, machine learning (ML) has been gradually employed for adsorbent materials, but there is no comprehensive research on the Schwertmannite adsorbent.
View Article and Find Full Text PDFLocalized Electron Redistribution in Methanol Molecules over the Sea Urchin-like Tricobalt Tetroxide/Copper Oxide Nanostructures for Fast Hydrogen Release.
ACS Appl Mater Interfaces
November 2024
School of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, China.
Catalytic methanolysis of ammonia borane (NHBH) is a prospective technology in the field of hydrogen energy in which hydrogen production and hydrogen storage can be integrated together. The splitting of the O-H bond is identified as the rate-determining step (RDS) in this reaction. Thus, a deep understanding of the relationship between the electronic structure of the catalyst, especially the localized electron density of active sites, and the breaking behaviors of the O-H bond is of extreme importance for the rational design of robust catalysts for the reaction.
View Article and Find Full Text PDFToward Upconversion (Yb-Er) and near-Infrared (Yb-Ho-Er, Nd-Yb) Thermometry with Sea Urchin Type GdPO Nanoarchitectures.
ACS Appl Mater Interfaces
October 2024
NanoSensing Group, Department of Chemistry, Ghent University, Krijgslaan 281-S3, 9000 Ghent, Belgium.
In recent years, optical temperature probes operating in the second near-infrared (BW-II) and third near-infrared (BW-III) biological windows have garnered significant attention in the scientific community. For biological applications these probes offer distinct advantages, including enhanced tissue penetration depth, minimal autofluorescence, and a remarkable improvement in imaging sensitivity and spatial resolution. Moving toward theranostic applications, there is a growing demand for the development of materials that integrate both BW-II and BW-III thermometry systems with drug delivery functionalities.
View Article and Find Full Text PDFWant 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!