Enhanced corrosion and wear resistance via dopamine-functionalized Ti3C2Tx MXene/waterborne polyurethane coating on magnesium alloy

Materials Today Chemistry, Journal Year: 2024, Volume and Issue: 39, P. 102142 - 102142

Published: June 5, 2024

Language: Английский

---

Annealing Ti₃C₂T_z MXenes to Control Surface Chemistry and Friction

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(5), P. 6290 - 6300

Published: Jan. 24, 2024

Although surface terminations (such as ═O, –Cl, –F, and –OH) on MXene nanosheets strongly influence their functional properties, synthesis of MXenes with desired types distribution those is still challenging. Here, it demonstrated that thermal annealing helps in removing much the terminal groups molten salt-etched multilayered (ML) Ti3C2Tz. In this study, chloride ML-Ti3C2Tz were removed via at increased temperatures under an inert (argon) atmosphere. This created some bare sites available for further functionalization XRD, EDS, XPS measurements confirm removal ML-Ti3C2Tz. annealed was refunctionalized by −OH 3-aminopropyl triethoxysilane (APTES), which confirmed FTIR. The APTES surface-modified are evaluated a solid lubricant, exhibiting ∼70.1 66.7% reduction friction compared to steel substrate, respectively. enhanced performance attributed improved interaction or adhesion functionalized substrate material. approach allows effective modification control properties.

Language: Английский

---

Investigations of tribological performance of slewing bearing raceway with bionic textured composite surface under grease lubrication

Tribology International, Journal Year: 2023, Volume and Issue: 184, P. 108469 - 108469

Published: March 31, 2023

Language: Английский

---

Review on Chitosan and Two-Dimensional MoS₂-Based Proton Exchange Membrane for Fuel Cell Application: Advances and Perspectives

Energy & Fuels, Journal Year: 2023, Volume and Issue: 37(3), P. 1699 - 1730

Published: Jan. 13, 2023

Chitosan is a naturally occurring polysaccharide with abundant biomass resources that attracts interest due to its unique physicochemical properties. The importance of chitosan has risen recently (a) because it renewable and biodegradable material (b) the ability form membrane. Therefore, highly preferable for green energy applications. This review describes most recent advancements in chemistry, emphasizing elemental modifying reactions like sulfonation, phosphorylation, phthaloylation, chemical cross-linking. However, major issues (CS)-based polymer electrolyte membrane (PEM) are attaining high proton conductivity, leakage across fuel cells, durability. To overcome above-mentioned issues, emerging class inorganic materials 2-D transition metal dichalcogenides especially MoS2 can be employed proton-exchange cell Surface functionalization open new pathways fabricating CS/MoS2 composite membranes. Current research also focuses on following issues: strategies development PEM, properties structures applications, (c) utilization different parts cell. present study discusses progress particular challenges chitosan-based exchange membranes face. Moreover, control those future aspects discussed detail.

Language: Английский

---

Ti3C2Tx MXenes – An effective and long-storable oil lubricant additive

Tribology International, Journal Year: 2023, Volume and Issue: 180, P. 108273 - 108273

Published: Jan. 20, 2023

Language: Английский

---