Novel cobalt phosphate rosettes have been synthesized. Control over the particle size and rosette geometry is afforded through the use of cationic quaternary ammonium salt surfactants. Small variations in the surfactant concentration allow for control over the rosette diameter.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1021/ic9016245 | DOI Listing |
Adv Sci (Weinh)
December 2024
Key Laboratory of Materials Physics, Centre for Environmental and Energy Nanomaterials, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China.
Cyclohexanone oxime, a critical precursor for nylon-6 production, is traditionally synthesized via the hydroxylamine method under industrial harsh conditions. Here is present a one-step electrochemical integrated approach for the efficient production of cyclohexanone oxime under ambient conditions. This approach employed the coupling of in situ electro-synthesized HO over a cobalt (Co)-based electrocatalyst with the titanium silicate-1 (TS-1) heterogeneous catalyst to achieve the cyclohexanone ammoximation process.
View Article and Find Full Text PDFChemistry
November 2024
State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, People's Republic of China.
Developing oxygen evolution reaction (OER) electrocatalysts in an efficient strategy, while maintaining high catalytic activity and stability under high current densities, remains a crucial problem. In this study, a bimetallic iron-cobalt phytic acid complex loaded with polyaniline hollow structure (FCP@PAn) was successfully constructed, via a progress of selective etching and surface modification in one step without high-temperature phosphating or carbonization. The as-obtained FCP@PAn required only 329 and 385 mV overpotentials at high current densities of 500 and 1000 mA cm, respectively, due to phytic acid and polyaniline incorporation and the coordinated effect of each component.
View Article and Find Full Text PDFNat Commun
November 2024
Energy and Technology Policy Group, ETH Zurich; Clausiusstrasse 37, CH-8092, Zurich, Switzerland.
Lithium-ion batteries are pivotal in climate change mitigation. While their own carbon footprint raises concerns, existing studies are scattered, hard to compare and largely overlook the relevance of battery materials. Here, we go beyond traditional carbon footprint analysis and develop a cost-based approach, estimating emission curves for battery materials lithium, nickel and cobalt, based on mining cost data.
View Article and Find Full Text PDFChem Commun (Camb)
November 2024
School of Sensing Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
Herein, we developed a facile method for the synthesis of battery-grade ferric phosphate (FePO·2HO) using high-pressure hydrolyzed precipitates of cobalt-iron alloy acid solution. The size of the prepared FePO·2HO samples was about 5-10 μm, and the microstructure of FePO·2HO was polyhedral. The FePO·2HO samples exhibited a high Fe/P ratio (1.
View Article and Find Full Text PDFSci Rep
November 2024
Research Centre for Nanomaterials and Energy Technology (RCNMET), School of Engineering and Technology, Sunway University, No. 5, Jalan Universiti, Bandar Sunway, 47500, Darul Ehsan, Selangor, Malaysia.
Electrochemical energy storage devices with high specific capacity are of utmost important for the next-generation electronic devices. Supercapatteries (SCs) are highly demanded energy storage devices nowadays as these bridge the low energy supercapacitors and low power batteries. Herein, we report a rapid synthesis of cobalt manganese phosphate (COMAP) by microwave-assisted hydrothermal method and facile fabrication of SCs using electrodes comprising of COMAP as positrode material.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!