Results 31 to 40 of about 5,025 (233)

Chromate conversion coating on Al–0.2wt.% Fe alloy [PDF]

Materials Letters, 2009
SEM and TEM investigations revealed that the chromate coating developed rapidly over the macroscopic alloy surface. The coating thickness increased over the immersion period employed in this study and was about 50 nm and 200 nm for coatings formed after 30 s and 120 s respectively.
Oki, Makanjuola, Charles, Ebitei
openaire   +2 more sources

Hierarchically Porous Nitrogen‐Doped Carbon with High Conductivity for Rapid and Efficient Cr(VI) Reduction

Advanced Science, EarlyView.
The d‐PNC(1100, 10%) catalyst, synthesized via a zinc‐based ionic liquid self‐sacrificing pore‐forming strategy to create a defect‐rich, hierarchical, nitrogen‐doped porous structure, enhances conductivity, promotes rapid mass transfer and synergistic catalytic activity, driving efficient Cr(VI) reduction in OA solution to generate Cr(III)‐OA complexes.
Danyan Lin, Jie Yang, Fengfeng Chen, Xishi Tai, Zhongshan Chen, Xinrong Guo, Xiangke Wang, Wen Yao   +7 more
wiley   +1 more source

Review of recent advances in the design, synthesis, and modification of biochar for remediation of heavy metal pollution in water

The Canadian Journal of Chemical Engineering, EarlyView.
Research frontiers in using biochar for heavy metal remediation. Abstract Heavy metal contamination of water has long been a serious environmental issue. Biochar and biochar‐based composites are emerging as effective and sustainable solutions for heavy metal removal due to their strong adsorption abilities and environmentally friendly nature.
Soumik Chakma, Mehedi Hasan, Sudip K. Rakshit, Janusz Kozinski, Kang Kang   +4 more
wiley   +1 more source

Effect of bath temperature on the growth kinetics and characteristics of permanganate conversion coating on LZ91 magnesium alloy

Journal of Materials Research and Technology
Permanganate conversion coating is one of the possible alternatives to chromate conversion coating for magnesium (Mg) alloys. Permanganate conversion coating enhances the corrosion resistance of Mg alloys, which is closely related to the thickness and ...
Sung-Mao Hung, Siao-Ying Chen, Chao-Sung Lin   +2 more
doaj   +1 more source

Performance of a Magnesium-Rich Primer on Pretreated AA2024-T351 in Full Immersion: a Galvanic Throwing Power Investigation Using a Scanning Vibrating Electrode Technique [PDF]

, 2018
The scanning vibrating electrode technique (SVET) was employed to examine the effect of ‘galvanic throwing power’ and the distance over which a Mg-rich primer (MgRP) provided sacrificial anode-based cathodic protection to AA2024-T351.
Geraint Williams, Hamilton McMurray
core   +1 more source

Crosslinked Gelatin‐Polycaprolactone Scaffolds: Balancing Biocompatibility and Inflammatory Response for Tissue Engineering Applications

Polymer Engineering &Science, EarlyView.
Crosslinked gelatin‐functionalized PCL scaffolds exhibited enhanced hydrophilicity, structural stability, and porous interactions. In vitro assays demonstrated improved osteoblast adhesion, viability, and proliferation without cytotoxicity, while in vivo evaluation showed no adverse inflammatory response, supporting their potential application in ...
Fernanda Ramírez‐Ruiz, Israel Núñez‐Tapia, Lucía Pérez‐Sánchez, María Cristina Piña‐Barba, Irving Sanchez‐Leal, Marco Antonio Alvarez‐Perez, Iriczalli Cruz‐Maya, Janeth Serrano‐Bello   +7 more
wiley   +1 more source

Effect of oxidizing concentration on the corrosion resistance of the cerium conversion coating on galvanized steel [PDF]

, 2014
Ce-based conversion films have been assessed as alternatives for replacement of Cr6+-based films,which have been forbidden for their toxicity and carcinogenic properties.
Costa, Ilda, Culcasi, José Daniel, Di Sarli, Alejandro Ramón, Elsner, Cecilia Ines, Palomino, Luis, Tomachuk, Celia Regina   +5 more
core   +2 more sources

Electrochemical characterization of chromate free conversion coatings on electrogalvanized steel [PDF]

Materials Research, 2013
The chromate conversion treatment is widely used, but it requires highly toxic chromic acid solutions with the consequent effluent disposal and ecological problems. The removal of these toxic chemicals is considered a priority within European Union.
Tomachuk, C. R., Elsner, Cecilia Inés, Di Sarli, Alejandro Ramón   +2 more
openaire   +7 more sources

Development of Coupled Electrochemical Systems for Metal Resource Recovery From Aqueous Metal‐Organic Complexes

Rare Metals, EarlyView.
ABSTRACT The past decade has witnessed a burgeoning demand of metals for global industrial development and infrastructure. Meanwhile, the depletion of mineral resources and the environmental damage caused by wastewater discharges pose significant threats to both economic and ecological sustainability. Fortunately, metal‐containing wastewaters also hold
Fei Zhang, Yu Cao, Yanjing Wang, Zhijuan Liu, Chao Xie, Yanyong Wang, Shuangyin Wang   +6 more
wiley   +1 more source

f‐Block Element‐Based MOF Thin Films: A Platform for Luminescence, Sensing, and Energy Applications

Small, EarlyView.
f‐Block element–based metal–organic framework (f‐MOF) thin films offer exceptional potential for luminescent, sensing, and energy‐related applications. This review surveys recent progress in their synthesis, characterization, and functional implementation, emphasizing the diversity of available thin‐film fabrication strategies. The convergence of these
Dong‐Hui Chen, Christof Wöll
wiley   +1 more source