Functionalized Modified TiO Polyaniline Coating for 316SS Bipolar Plate in Proton-Exchange Membrane Fuel Cells.

Polymers (Basel)

Guangxi Key Laboratory of Electrochemical Energy Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.

Published: September 2024


Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

In this paper, the PANI/PDA-TiO composite coating was prepared on 316L by constant current deposition with a current density of 2.8 mA·cm, in which the TiO powders were modified by PDA (polydopamine). The open-circuit potential of the obtained PANI/PDA-TiO composite coating is about 365 mV, which is more positive than that of the bare 316L. During immersion in 1 M HSO + 2 ppm HF for 200 h, the high stable corrosion potential and the lower indicate that the composite coating has long-term corrosion resistance.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11435329PMC
http://dx.doi.org/10.3390/polym16182592DOI Listing

Publication Analysis

Top Keywords

composite coating
12
pani/pda-tio composite
8
functionalized modified
4
modified tio
4
tio polyaniline
4
coating
4
polyaniline coating
4
coating 316ss
4
316ss bipolar
4
bipolar plate
4

Similar Publications

Role of Liquid Composition in the Transient Liquid Assisted Growth of Superconducting YBaCuO Films.

Adv Mater

September 2025

Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus de la UAB, Bellaterra, Catalonia, 08193, Spain.

The unparalleled loss-less electrical current conduction of high-temperature superconducting (HTS) materials encourages research on YBaCuO (YBCO) to unravel opportunities toward numerous applications. Nonetheless, production costs and throughput of the commercialized HTS Coated Conductors (CCs) are still limiting a worldwide spread. Transient liquid assisted growth (TLAG) is a non-equilibrium process displaying ultrafast growth rate which, when combined with chemical solution deposition (CSD), is emerging as a strong candidate to reduce the cost/performance ratio of YBCO superconductors.

View Article and Find Full Text PDF

Hexaazaisowurtzitane (CL-20) is a high-energy-density compound with poor thermal stability, which hinders its application in composite energetic systems. A bi-interface structure of polydopamine-coated graphene oxide (GO@PDA) is shown to markedly improve thermal stability compared with pristine CL-20 and single-layer coatings. Reactive molecular dynamics simulations enhanced by a neural network potential (NNP) reveal that the delayed onset of decomposition arises from suppressed NO release and altered spatial density distribution, while interfacial -OH and -COOH groups consume intermediates, redirect decomposition pathways, and inhibit autocatalytic chain reactions.

View Article and Find Full Text PDF

Silicon carbide (SiC) membranes combine exceptional chemical, thermal, and mechanical stability but suffer from surface inertness that precludes functionalization. Conversely, MOFs offer unmatched molecular selectivity but are typically powders, severely limiting their practical use. To address this, we develop a generalizable route to fabricate ultrastable MOF@SiC membranes via sequential oxidation and acidification, creating abundant Si-OH sites on SiC surfaces that covalently bond with Zr-MOF crystals; the bonding mechanism between MOFs and substrates has been extensively studied.

View Article and Find Full Text PDF

Metal matrix composites are widely employed in aerospace and marine engineering due to their excellent mechanical properties and chemical stability. However, their surfaces remain vulnerable to corrosion, icing, and mechanical wear, severely compromising long-term reliability in harsh environments. Inspired by natural superhydrophobic surfaces such as lotus leaves, functional interfaces with high water repellency and interfacial stability can be engineered through the synergistic design of hierarchical micro/nanostructures and low-surface-energy chemical modifications.

View Article and Find Full Text PDF

Gold/Prussian Blue-Based Nanocomposites with Dual Nanozyme Activities Exert a Synergistic Effect of Starvation Therapy and Sonodynamic Therapy in the Treatment of Liver Cancer.

Int J Nanomedicine

September 2025

School of Pharmaceutical Sciences, Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou University, Zhengzhou, 450001, People's Republic of China.

Purpose: This study aimed to develop a composite nanozyme system (Au/PB-Ce6-HA) based on gold nanoparticles (AuNPs) and Prussian blue nanoparticles (PBNPs) to combat tumor hypoxia and insufficient endogenous hydrogen peroxide (HO) deficiency, thus enhancing the efficacy of sonodynamic therapy (SDT) and starvation therapy for liver cancer.

Methods: The Au/PB-Ce6-HA system was constructed by in situ embedding AuNPs on PBNPs, loading the sonosensitizer Chlorin e6 (Ce6), and surface-coating with thiolated hyaluronic acid (HA-SH). The system was evaluated both in vitro and in vivo to assess its ability to catalyze glucose to generate HO, decompose HO to produce oxygen, and generate highly toxic reactive oxygen species (ROS) under ultrasound irradiation.

View Article and Find Full Text PDF