Article
Chemistry, Physical
Yanli Wang, Qianyun Tan, Bo Huang
Summary: A novel N/Ta-co-doped TiO2 coating (TOTaN) was developed on Ti through sol-gel method to solve the corrosion and passivation of metal bipolar plates. The TOTaN coating enhanced the conductivity of TiO2 and showed excellent corrosion protection in a simulated cathode environment.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Rodrigo T. Bento, Olandir V. Correa, Marina F. Pillis
Summary: The study found that sulfur-doped titanium dioxide films exhibit good photocatalytic activity under visible light, and can maintain over 70% activity even after several cycles of continuous use, making them suitable for practical applications in water treatment and purification under sunlight.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Physical
A. Panepinto, D. Cossement, R. Snyders
Summary: The research focuses on the application of charge transport in DSSCs using N-doped TiO2 materials, with precise control of nitrogen chemistry achieved through a combination of Reactive Magnetron Sputtering and Ion Implantation. It was found that the sputtering of the ion implanted layer prevails at low accelerating voltages, while the ion implantation process dominates at high accelerating voltages. The study also demonstrated that the sputtering effect can be easily avoided for low dose conditions.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Liangliang Huang, Dongfeng Diao, Yuanyuan Cao
Summary: This study investigated the electrochemical corrosion behaviors of N-doped graphene sheets embedded carbon (N-GSEC) film in H2SO4 solutions. The corrosion of N-GSEC film originated from the oxidation of carbon, resulting in the formation of N-doped graphene oxides and more exposed graphene edges, which significantly improved the electron transfer rates and electrochemical activity. The corroded N-GSEC exhibited much higher electrocatalytic activity for phenol biomolecules.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Rodrigo Teixeira Bento, Olandir Vercino Correa, Renato Altobelli Antunes, Marina Fuser Pillis
Summary: TiO2 films were sulfur-doped through the decomposition of H2S at low temperatures using MOCVD technique, resulting in the formation of SO42- groups on the surface. The sulfur-doped TiO2 films exhibited high photocatalytic activity under visible light, enabling dye decolorization.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Chemistry, Physical
Baosen Mi, Zhuo Chen, Quan Wang, Yifeifei Li, Ziwei Qin, Hongbin Wang
Summary: C doped CrTiN films were deposited on 316L stainless steel by magnetron sputtering technology to investigate corrosion resistance and electrical conductivity. The addition of C can improve corrosion resistance, and the interfacial contact resistance decreases with the increase of C content.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Multidisciplinary
Teng Jiao, Zeming Li, Wei Chen, Xin Dong, Zhengda Li, Zhaoti Diao, Yuantao Zhang, Baolin Zhang
Summary: The use of silane as an n-type dopant for Si-doped beta-Ga2O3 films grown on (100) beta-Ga2O3 substrates via MOCVD allows for stable control of electron concentrations, with higher quality and lower defect density observed in homoepitaxial compared to heteroepitaxial films. Increasing doping concentration may adversely affect defect density and surface morphology of the films.
Article
Materials Science, Multidisciplinary
Yaoxin Ding, Danni Xue, Hanzhou Yu, Jie Shen
Summary: Mo/N co-doped TiO2 nanotube array films were prepared using magnetron sputtering and anodization. The effects of doping concentration and nanotube morphology on the structure, morphology, elemental composition, light-absorption capacity, and optoelectronic properties of TiO2 nanotubes were investigated. The results showed that Mo primarily incorporated into the TiO2 lattice in the Mo6+ valence state, while N was mainly embedded into the lattice as interstitial atoms. Also, the Mo/N co-doped TiO2 nanotube array films exhibited the best photovoltaic performance with a photogenerated current of 0.50 μA/cm(2), which was 5.5 times higher than that of Mo-doped TiO2. This enhancement in photocatalytic efficiency can be attributed to the increased concentration of photogenerated electrons and holes, reduced band gap width, and intense light absorption within the visible spectrum.
Article
Chemistry, Physical
Tao Wei, Wancheng Shen, Miao Cheng, Wanfei Li, Lei Chen, Ying Wang, Jing Hu, Qianqian Liu, Yun Ling, Jingsong Wei, Bo Liu
Summary: This study reports N-doped Sb2Te thin films as a resist material with both positive and negative features by adjusting the N concentration. The negative resist film shows high corrosion selectivity, while the positive resist film exhibits the maximum corrosion selectivity. The mechanism behind the corrosion selectivity is investigated through electrochemical and structural analysis.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Feng Li, Wangshu Zheng, Jing Liu, Liping Zhao, Djordje Janackovic, Yu Qiu, Xuefeng Song, Peng Zhang, Lian Gao
Summary: In this study, Ti-doped hematite with ordered mesoporous structure was synthesized and coated on TiO2-protected silicon, significantly enhancing the photoelectrochemical performance. Ti doping led to a more uniform dispersion of photoelectrons on the surface, while the low electronic concentration in the TiO2 layer prolonged the device lifetime. This research provides an effective protection mechanism for composite photoelectrodes, offering a promising strategy for protecting the photocathode through surface decoration with carefully tailored catalysts.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Q. Jia, Z. Mu, X. Zhang, B. Zhang, R. Liu, K. Gao, Y. Yu, Z. Lai, J. Zhang
Summary: A new method for preparing carbon-coated metal bipolar plates is proposed in this study, using reactive magnetron sputtering with a Cr0.6Cu0.4 target in methane and argon atmosphere. The resulting C18.6Cr0.06Cu (S65) film has a high deposition rate and good conductivity. The unique structure of the film provides excellent electrical and anti-corrosion properties.
MATERIALS TODAY CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Irina Yu. Zhuravleva, Maria A. A. Surovtseva, Alina A. A. Alshevskaya, Nikolay V. V. Surovtsev, Konstantin A. A. Okotrub, Irina I. I. Kim, Dmitriy A. A. Nasimov, Natalia A. A. Bondarenko, Oleg S. S. Kuzmin, Olga V. V. Poveshchenko
Summary: This study developed an integral cytocompatibility index and a decision tree algorithm to assess the cytocompatibility of TiO2 and N-TiO2 coatings. The results showed that the sample dominated by the rutile phase exhibited the best cytocompatibility. The DTA provided more detailed information about cytocompatibility.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Physical
Lei-Lei Liang, Zhuo Liu, Li-Jing Xie, Jing-Peng Chen, Hui Jia, Qing-Qiang Kong, Guo-Hua Sun, Cheng-Meng Chen
Summary: The study introduces a novel synthetic strategy for constructing bamboo-like N-doped carbon tube encapsulated cobalt-nickel alloy, which exhibits excellent microwave absorption performance and is suitable for stable commercial applications in extreme chemical environments.
Article
Chemistry, Physical
Yong Sun, Yajing Wang, Huijun Ma, You Zhou, Hongna Xing, Wei Feng, Juan Feng, Zhenhua Shi, Yan Zong, Xinghua Li, Xinliang Zheng
Summary: The study prepared Fe3C/N-doped carbon nanofibers using carbonization technique in different atmospheres, which exhibit superior microwave absorption properties and resistance to corrosion and oxidation. The carbon nanofibers show optimal reflection loss performance at frequencies of 5.8 GHz and 17.8 GHz.
Article
Nanoscience & Nanotechnology
Yi Yang, Tianyu Sun, Fuliang Ma, Liang-Feng Huang, Zhixiang Zeng
Summary: A Fe3+ doped TiO2 film with long-lasting superhydrophilicity and antifogging is prepared in this study, and experiments along with density-functional theory calculations are conducted to investigate the antifogging performance and the underlying microscopic mechanism of Fe3+ doped TiO2. The results show that Fe3+ doping can enhance the photolysis ability of TiO2 under sunlight exposure and stabilize the hydroxyl adsorbate on TiO2 surface, leading to a long-lasting superhydrophilicity.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Electrochemistry
Sara M. Manhabosco, Alvaro Pritzel dos Santos, Marcelo L. Marcolin, Eurico F. Pieretti, Mauricio D. M. Neves, Luis F. P. Dick
ELECTROCHIMICA ACTA
(2016)
Article
Electrochemistry
Eurico Felix Pieretti, Mauricio David Martins das Neves
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2017)
Article
Automation & Control Systems
Lucas Alves Dias, Roger William de Oliveira Silva, Paulo Cesar da Silva Emanuel, Andre Ferrus Filho, Rodrigo Teixeira Bento
INTERNATIONAL JOURNAL OF CONTROL AUTOMATION AND SYSTEMS
(2018)
Article
Electrochemistry
Eurico Felix Pieretti, Marina Fuser Pillis
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2018)
Article
Materials Science, Ceramics
Rodrigo T. Bento, Olandir V. Correa, Marina F. Pillis
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2019)
Article
Engineering, Mechanical
Rodrigo T. Bento, Andre Ferrus Filho, Marco A. Fumagalli
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2019)
Article
Materials Science, Multidisciplinary
Rodrigo T. Bento, Olandir V. Correa, Marina F. Pillis
Summary: The study found that sulfur-doped titanium dioxide films exhibit good photocatalytic activity under visible light, and can maintain over 70% activity even after several cycles of continuous use, making them suitable for practical applications in water treatment and purification under sunlight.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Rodrigo Teixeira Bento, Olandir Vercino Correa, Renato Altobelli Antunes, Marina Fuser Pillis
Summary: TiO2 films were sulfur-doped through the decomposition of H2S at low temperatures using MOCVD technique, resulting in the formation of SO42- groups on the surface. The sulfur-doped TiO2 films exhibited high photocatalytic activity under visible light, enabling dye decolorization.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Chemistry, Multidisciplinary
Bianca A. Marcello, Olandir Correa, Rodrigo T. Bento, Marina F. Pillis
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
(2020)
Proceedings Paper
Engineering, Biomedical
Eurico Felix Pieretti, Renato Altobelli Antunes, Mauricio David Martins das Neves
XXVI BRAZILIAN CONGRESS ON BIOMEDICAL ENGINEERING, CBEB 2018, VOL 1
(2019)
Article
Multidisciplinary Sciences
Rodrigo T. Bento, Roger W. O. Silva, Lucas A. Dias, Andre Ferrus Filho, Antonio J. C. Pitta
SN APPLIED SCIENCES
(2019)
Article
Electrochemistry
Eurico Felix Pieretti, Mauricio David Martins das Neves
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2016)
Article
Electrochemistry
Eurico Felix Pieretti, Elisabete Jorge Pessine, Olandir Vercino Correa, Wagner de Rossi, Maurcio David Martins das Neves
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2015)