Article
Biochemistry & Molecular Biology
Beilei Wang, Jinsheng Hua, Renchuan You, Kun Yan, Likun Ma
Summary: This study presents a green and facile electrobiofabrication method to construct a bioactive hydrogel coating on coronary stent and titanium surfaces, which can significantly enhance interfacial biological activity. The coating, with copper ions immobilized, demonstrates excellent mechanical properties and cell biocompatibility, showing great potential for biomedical applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Materials Science, Multidisciplinary
Peng Wan, Weidan Wang, Lizhen Zheng, Ling Qin, Ke Yang
Summary: A novel one-step electrodeposition synthesis of drug loaded coating was proposed in this study to improve the treatment effect of osteoporotic fractures. The coating enhanced the proliferation and differentiation of osteoblasts, while showing no significant inhibition on osteoclasts.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
M. R. Akbarpour, F. Gharibi Asl, H. Rashedi
Summary: This study produced a functional Ni-Co/graphene coating using pulse-reverse current electrodeposition, in which graphene was co-deposited in a Ni-Co plating bath. The effects of graphene concentration on the coating's morphology, microstructure, microhardness, and electrochemical behavior were investigated. The results showed that introducing graphene into the electrolyte and adjusting its concentration affected the composition and structure of the composite coatings. Increasing the graphene concentration improved the electrochemical behavior of the composite coating, but a higher concentration decreased it.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Chen Yang, Zhengjun Yao, Fan Zhang, Moliar Oleksandr
Summary: The study utilized area-selective electrodeposition technique to repair damaged coating areas by specifying the track. Different current density parameters were investigated for their effects on the microstructure and properties of the repaired coating. The results showed that the repaired coating exhibited improved protective performance and corrosion resistance compared to the damaged coating.
JOURNAL OF MATERIALS RESEARCH
(2021)
Article
Materials Science, Coatings & Films
R. Troncy, L. Boccaccini, G. Bonnet, X. Montero, M. C. Galetz, F. Pedraza
Summary: This study explores a new type of self-healing coating for high temperature oxidation applications. Micro-reservoirs consisting of an aluminium-rich intermetallic core and an aluminium oxide shell are embedded in a nickel aluminide matrix. The micro-reservoirs form a diffusion barrier and release aluminium into the coating matrix, maintaining a sufficient amount of aluminium and increasing the lifespan of the coating.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Coatings & Films
Lixuan Ren, Yanzhen Zhao, Liu Yang, Wenling Cao, Huifang Wang, Xiaojie Lian, Xianghua Gao, Baolong Niu, Wenfeng Li
Summary: The study successfully synthesized silver nanoparticles using catechol functionalized chitosan and prepared composite coatings with good antibacterial properties and biocompatibility.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Physical
Weiwei Yang, Youcai Zhang, Shengyuan Lei, Qiufeng Mo, Kui Ling, Xiaoyu Lv, Xiaolian Zhao, Weizhou Li
Summary: The MoSi2/NbSi2 composite coating was prepared on Nb-based alloys using electrodeposition and halide activated pack cementation (HAPC) process. The composite coating exhibited strong resistance during the hot corrosion process, attributed to the compact SiO2 scale acting as a barrier to diffusion of oxygen and improving the overall corrosion resistance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Carolina da S. Lopes, Isabel C. Rigoli, Carlos A. D. Rovere, Claudia L. F. da Rocha, Carlos A. C. de Souza
Summary: This study investigates a composite zinc coating containing cotton nanocrystals obtained through electrodeposition. The addition of cotton nanocrystals is found to improve the morphology and surface smoothness of the coating, increase the current efficiency and corrosion resistance, but decrease the hardness of the coating.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Engineering, Mechanical
Wangping Wu, Yicheng Zhou, Guang He, Nather Johannes, Yaxuan Liu, Frank Koester, Thomas Lampke
Summary: Ni-Re alloy coatings were electrodeposited from Watts's type and citrate solutions, with Re-content ranging from 0 to 80 wt%. The microstructure, crystallographic texture, deposition rate, grain size, microhardness, and abrasion resistance of the coatings were investigated. The results revealed that high Re-content led to microcracking in the coatings, while low Re-content resulted in dense and homogeneous coatings. Increasing Re-content created fine nanocrystalline structures with smaller grain sizes. The deposition rate was higher in the citrate solution than in the Watts's solution. The microhardness increased with Re-content, and the wear coefficient decreased. A Ni-Re alloy coating with 80 wt% Re exhibited the best abrasion resistance, with the lowest wear coefficient of approximately 6.2 x 10(-16) m(3) m(-1) N-1.
Article
Engineering, Mechanical
Pao-Chang Huang, Kung-Hsu Hou, Jia-Jun Hong, Meng-Hung Lin, Gao-Liang Wang
Summary: Control of SiC particle content and hardness results in Ni-SiC composite coatings with lower friction coefficients and wear rates. In a lubrication environment, an appropriate SiC particle content can lead to better wear performance.
Article
Materials Science, Multidisciplinary
Pragya Tripathi, Janakarajan Ramkumar, Kantesh Balani
Summary: The study investigated the wear mechanisms in hybrid coatings reinforced with different materials, showcasing varying wear rates and behaviors. Graphene coatings exhibited lower wear rates, while diamond coatings demonstrated higher hardness and elastic modulus.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2021)
Article
Engineering, Environmental
Jiahuan Chen, Zhen He, Jiaming Liu, Yuxin Wang, Michael Hodgson, Wei Gao
Summary: Anodic aluminium oxide-copper (AAO-Cu) coatings were prepared on aluminium alloy substrates to achieve excellent antibacterial performance and mechanical stability. The intermediate zone of the AAO-Cu coating plays a significant role in enhancing adhesion and preventing defoliation. The sustained antibacterial capability of the AAO-Cu intermediate zone, even when the outer Cu coating is removed, makes it suitable for a wide range of antibacterial products in public.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Wei Jiang, Junjie Li, Wenwei Cheng, Huigui Li, Xiangguo Zhai, Fengwu Chen, Yuanlong Chen
Summary: This study investigated the fabrication and performance of Ni-Co-MoS2/Ni superhydrophobic composite coatings. The composite coatings exhibited coral-like micro/nano structures, which became denser with the increase of micro/nano particle concentration. The coatings, obtained without any chemical modification reagents, showed a high contact angle and excellent self-cleaning performance.
SURFACES AND INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Qijun Xia, Pengwei Ren, Huimin Meng
Summary: This paper introduces a novel method for preparing coatings with different microstructures (nano-crystalline, amorphous-nanocrystalline composite, and amorphous) in the same material system and finds that the amorphous-nanocrystalline Ni-P alloy has higher hardness and better wear resistance.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Carolina da Silva Lopes, Carlos Alberto Della Rovere, Isabel Cristina Rigoli, Claudia Lisiane Fanezi Da Rocha, Carlos Alberto Caldas De Souza
Summary: Zn-soybean nanocrystal composite coating was produced through electrodeposition, and the effect of nanocrystal addition on the coating characteristics was studied. The presence of soybean nanocrystal reduces the hardness, but increases the corrosion resistance of the coating.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Environmental Sciences
Kaique S. G. C. Oliveira, Rosimeire M. Farinos, Alyne B. Veroli, Luis A. M. Ruotolo
Summary: The study focused on the anodic oxidation of recalcitrant organic compounds using a PbO2 electrode on a three-dimensional matrix of reticulated vitreous carbon (RVC). By optimizing the experimental conditions, high current efficiency and reduced energy consumption were achieved for the degradation of glyphosate-containing wastewater. The use of the RVC/PbO2 anode demonstrated effective treatment of real effluents.
ENVIRONMENTAL TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Bruna G. de Souza, Gustavo Figueira, Maria H. Carvalho, Victor Alcaraz-Gonzalez, Karla E. Saldana-Flores, Mario Godinho Jr, Adilson J. A. de Oliveira, Ruth H. G. A. Kiminami, Luis A. M. Ruotolo, Ernesto A. Urquieta-Gonzalez
Summary: A novel unconventional coprecipitation procedure combined with a simple and fast microwave-assisted hydrothermal treatment was used to synthesize a new nanocrystalline magnetic cobalt ferrite with photo-Fenton activity. The study demonstrated that microwave hydrothermal treatment is essential for obtaining magnetic and photoactive Co-ferrite, with photoactivity mainly attributed to the migration of Co2+ ions during the MAH treatment.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Jessica A. Oliveira, Juliana A. Torres, Renato Goncalves, Caue Ribeiro, Francisco G. E. Nogueira, Luis A. M. Ruotolo
Summary: In this study, CO2 was converted to valuable chemicals using photoactive basic bismuth nitrates and niobium pentoxide nanocomposites. The photocatalytic process produced CO and C2H4, and the mechanism was revealed to be based on a Z-scheme.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Engineering, Environmental
Lurima U. S. Faria, Kaique S. G. C. Oliveira, Alyne B. Veroli, Jose M. Aquino, Luis A. M. Ruotolo
Summary: The study optimized the electrooxidation process by combining current modulation and turbulence promoters, significantly reducing energy consumption and shortening mineralization time. The results demonstrated the importance of using the combined approach of current modulation and turbulence promoters in improving efficiency for wastewater treatment.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Electrochemistry
Kamilla M. Barcelos, Kaique S. G. C. Oliveira, Domingos S. A. Silva, Ernesto A. Urquieta-Gonzalez, Luis A. M. Ruotolo
Summary: In this study, we found that different cell configurations and voltages have a significant impact on the desalination capacity and stability of activated carbons in CDI technology. Controlling potential distribution is an effective strategy to suppress carbon oxidation reactions, improving electrode long-term stability.
ELECTROCHIMICA ACTA
(2021)
Article
Engineering, Chemical
Alessandra P. Silva, Alexandre Argondizo, Patricia T. Juchen, Luis A. M. Ruotolo
Summary: CDI is an attractive desalination technology due to the use of inexpensive carbon electrodes, and in this study, RHAC electrodes synthesized at different carbonization temperatures showed enhanced desalination performance and ultrafast kinetics. RHAC carbonized at 600 degrees C exhibited outstanding salt removal capacity per gram of electrode per day.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Patricia T. Juchen, Kamilla M. Barcelos, Kaique S. G. C. Oliveira, Luis A. M. Ruotolo
Summary: This study successfully utilized waste crude glycerol to produce sustainable activated carbon for capacitive deionization (CDI) desalination, demonstrating improved salt adsorption capacity and charge efficiency through controlling electrode potential and E-cell. The activated carbon electrode showed stable performance in membrane CDI configuration, suggesting its potential as a low-cost and effective option for water desalination.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Karla Estefania Saldana-Flores, Rene Alejandro Flores-Estrella, Victor Alcaraz-Gonzalez, Elvis Carissimi, Bruna Goncalves de Souza, Luis Augusto Martins Ruotolo, Ernesto Urquieta-Gonzalez
Summary: This work introduces a classical linear control approach for peroxide dosage in a photo-Fenton process to improve the treatment efficiency of recalcitrant organic compounds. Experiments were conducted to degrade specific compounds, with better results achieved using closed-loop control compared to open-loop control.
Article
Materials Science, Multidisciplinary
Jessica A. A. Oliveira, Roberta R. M. A. Silva, Gelson T. S. T. da Silva, Juliana A. Torres, Abbas Vali, Caue Ribeiro, Krishnan Rajeshwar, Luis A. M. Ruotolo
Summary: This study addresses a literature gap in the emerging photoelectrode materials for solar fuels generation, and successfully synthesizes two copper vanadates through an optimized synthesis route. Further evaluation is needed to conclude.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Engineering, Chemical
Rafael L. Zornitta, Luis A. M. Ruotolo, Louis C. P. M. de Smet
Summary: Capacitive deionization (CDI) is a technology used for water desalination and ion recovery. The use of specific electrode materials, such as polyaniline, can improve ion storage capacity and selectivity. By controlling the potential, stable chloride removal and efficient water desalination can be achieved.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Patricia T. Juchen, Luis A. M. Ruotolo
Summary: Capacitive deionization (CDI) is a promising method for brackish water desalination. This study compared different cell architectures and found that electrode thickness and flow mode significantly affected the desalination performance. Optimizing electrode thickness and design can greatly enhance the desalination rate.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Kaique S. G. C. Oliveira, Kamilla M. Barcelos, Julio J. Lado, Jesus Palma, Luis A. M. Ruotolo
Summary: Activated carbon obtained from chloride-doped polyaniline (PAC/Cl) is a promising material for capacitive deionization (CDI) due to its easy synthesis, low cost, and fast electrosorption kinetics. However, the low content of surface oxygen groups (SOGs) limits its salt adsorption capacity (SAC). In this study, different strategies were explored to improve SAC and kinetics of PAC/Cl electrodes through modified synthesis procedures. The results showed that PLR-modified PAC/Cl is a simple and effective strategy for obtaining low-cost activated carbons with improved desalination performance.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Juliana V. de Freitas, Chirag B. Godiya, Cristiane S. Farinas, Luis A. M. Ruotolo
Summary: This study investigated the use of sugarcane bagasse fly ash (BFA), a low-cost agro-industrial waste produced in ethanol mills, as an effective adsorbent for removing aflatoxin B-1 from buffer solutions simulating the animal gastrointestinal tract. The results showed that BFA could selectively and rapidly remove aflatoxin B-1 from a multicomponent solution, while not adsorbing important nutrient minerals. The in vitro results suggested that BFA could be a potential and cost-effective adsorbent for animal feed.
BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Marco A. Verzola, Kaque S. G. C. Oliveira, Lus A. M. Ruotolo
Summary: The modulated current (MC) technique is effective for effluent treatment, but it requires a longer electrolysis time. This issue can be addressed by using a turbulence promoter (TP) to enhance mass transfer and reaction rate. By considering the electrochemical active area (A(E)), the current applied in the MC mode can be accurately determined. The combination of MC and TP results in a significant reduction in energy consumption and improved current efficiency, as demonstrated in the degradation of a model organic compound.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Larissa F. Costa, Luis A. M. Ruotolo, Lucas S. Ribeiro, Marcio C. Pereira, Emerson R. Camargo, Francisco G. E. Nogueira
Summary: This study developed a new synthesis route using a modified Pechini approach and soybean husk as a carbon precursor to obtain low-cost magnetic-activated carbons for adsorption of phenolic compounds. The magnetic adsorbents demonstrated a strong affinity towards phenolic compounds and were successful in removing organics from real wastewater. The Fe content, phase formation, and graphitization degree were found to influence both the magnetic properties and adsorption capacity of the materials.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
