Manganese phosphate coating could be used to protect the surface of steel products. However, it is essential to determine the effects which process parameters, as well as the types of additives used, have on the efficiency of coating deposition. Thus, we present here a process of phosphatization of low-alloy steel (for 15 min at 95 °C) in manganese/nickel baths followed by a passivation process with the use of a silicon and zircon compounds. The microstructure and morphology of the surface were analyzed by SEM EDX and XRD methods. The obtained results showed that the manganese phosphate could be effectively formed at 95 °C in the solution containing nickel and guanidine derivatives. Anodic polarization of manganese coating was investigated in 0.5 M KCl by the analysis of polarization resistance. The effects of the activation process on corrosion properties of the coating have been examined. It was observed that an increased concentration of activating substances in the activation bath results in the enhancement of corrosion resistance.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6316882 | PMC |
| http://dx.doi.org/10.3390/ma11122585 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Mn-Rich Induced Alteration on Band Gap and Cycling Stability Properties of LiMnFePO Cathode Materials.
ACS Appl Mater Interfaces
December 2024
Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China.
Olivine-type LiMnFePO (LMFP) has inherited the excellent heat-stable structure of LiFePO (LFP) and the high-voltage property of LiMnPO (LMP), which shows great promise as a high-safety, high-energy-density cathode material. In order to combine the high energy density and excellent electrochemical performance, it is essential to consider the Mn/Fe ratio. This paper presents a theoretical investigation of the lattice structure parameters, embedded lithium voltage, local electron density, migration barrier, and lithium ion delithiation and lithiation mechanism of different LiMnFePO4 (0.
View Article and Find Full Text PDFRapid synthesis of cobalt manganese phosphate by microwave-assisted hydrothermal method and application as positrode material in supercapatteries.
Sci 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 PDFGreen Phytic Acid-Assisted Synthesis of LiMnFePO/C Cathodes for High-Performance Lithium-Ion Batteries.
Nanomaterials (Basel)
August 2024
School of Energy and Electrical Engineering, Qinghai University, Xiâning 810016, China.
As a promising cathode material, olivine-structured LiMnPO holds enormous potential for lithium-ion batteries. Herein, we demonstrate a green biomass-derived phytic-acid-assisted method to synthesize a series of LiMnFePO/C composites. The effect of Fe doping on the crystal structure and morphology of LiMnPO particles is investigated.
View Article and Find Full Text PDFZnMn(PO)·HO: An HO-Imbedding-Activated Cathode for Robust Aqueous Zinc-Ion Batteries.
Nano Lett
August 2024
Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China.
Article Synopsis
- Mn-based electrodes have improved energy storage due to their adjustable crystal structures, specifically through a material called ZnMn(PO)·HO, which is formed from ZnMn(PO) during aging.
- The introduction of water molecules into the structure enhances ion flow and stability, making the battery's electrochemical reactions more efficient.
- As a result, the Zn||ZMP·HO battery shows impressive performance with 106.52 mA h/g capacity over 620 cycles, paving the way for better manganese-based rechargeable batteries.
Biomineralization-inspired synthesis of autologous cancer vaccines for personalized metallo-immunotherapy.
iScience
July 2024
Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren' ai Road, Suzhou, Jiangsu 215123, P.R. China.
Autologous cancer vaccines represent a promising therapeutic approach against tumor relapse. Herein, a concise biomineralization strategy was developed to prepare an immunostimulatory autologous cancer vaccine through protein antigen-mediated growth of flower-like manganese phosphate (MnP) nanoparticles. In addition to inheriting the cyclic guanosine monophosphate-adenosine monophosphate synthase (cGAS)-stimulator of interferon genes (STING)-activating capacity of Mn, the resulting ovalbumin (OVA)-loaded MnP (OVA@MnP) nanoparticles with superior stability and pH-responsiveness enabled efficient priming of antigen-specific CD8 T cell expansion through promoting the endo/lysosome escape and subsequent antigen cross-presentation of OVA.
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!