Article
Materials Science, Multidisciplinary
Xuemei Song, Yi Ding, Jimei Zhang, Caifen Jiang, Ziwei Liu, Chucheng Lin, Wei Zheng, Yi Zeng
Summary: This study investigates the effect of phase composition and microstructure on the thermophysical and mechanical properties of Yttrium-stabilized zirconia (YSZ) materials. The results show that YSZ materials with cubic (c-YSZ) phase are more suitable as thermal barrier coatings (TBCs) due to their superior heat insulation, thermal expansion match, and strain tolerance. The c-YSZ phase also has lower thermal conductivity and greater lattice distortion, oxygen vacancies, and sound velocity due to Y2O3 doping. Additionally, the c-YSZ phase exhibits lower elastic modulus, better malleability and plasticity, while the tetragonal (t-YSZ) phase has better fracture toughness.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
Jamila Sakfali, Semy Ben Chaabene, Rym Akkari, Frederic Dappozze, Gilles Berhault, Chantal Guillard, Mongia Said Zina
Summary: ZrO2 nanoparticles were prepared using a 'one-pot' sol-gel method followed by thermal post-treatments, allowing the creation of intermediary band gap sites and enabling photocatalytic activity under UV irradiation. The photoactivity of ZrO2 samples is dependent on the mid band gap value, which can be influenced by the ZrO2 phase, surface oxygen defects, and lattice distortion at high temperatures. Further research is warranted to explore the implications of these findings.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Mingyue Yi, Yu Zhang, Jiawen Xu, Dingyuan Deng, Zhu Mao, Xiangchun Meng, Xiumin Shi, Bing Zhao
Summary: The effect of ZrO2 crystal form on SERS activity was investigated. Controlling the ratio of T and M phases in ZrO2 NPs enhanced the SERS intensity of 4-MBA. Charge transfer was identified as the main contributor to SERS, with the strongest enhancement seen when the T crystal phase in ZrO2 was 99.7%.
Article
Chemistry, Physical
Dong Hao, Yue-Xian Song, Ying Zhang, Hong-Tao Fan
Summary: By controlling the dosage of triethanolamine, two nanocomposites of monoclinic-ZrO2@rGO and tetragonal-ZrO2@rGO were successfully prepared, with the tetragonal-ZrO2@rGO exhibiting a higher adsorptive amount for OTC. Both nanocomposites show a selective uptake of OTC among tetracycline antibiotics, with adsorption reaching equilibrium in 15 minutes and being independent of pH in the range of 4-8. The interactions between OTC and the nanocomposites were revealed through Fourier transform infrared and XRD analysis, with surface complexation, pi-pi, and cation-pi bonding interactions playing a crucial role.
APPLIED SURFACE SCIENCE
(2021)
Article
Thermodynamics
Alex Meireles Neris, Jailson Machado Ferreira, Maria Gardennia Fonseca, Ieda Maria Garcia dos Santos
Summary: The study obtained tetragonal undoped ZrO2 using the Pechini method and observed the tetragonal-monoclinic phase transition. Tetragonal phase became the major phase after calcination below 800 degrees C, while most transition to monoclinic phase occurred during cooling below 500 degrees C. Both catalysts showed high efficiency in ethylic transesterification of soybean oil at 100 degrees C without significant differences in activity.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Physics, Condensed Matter
H. S. Lokesha, K. R. Nagabhushana, Fouran Singh, N. R. Thejavathi, Sonia Hatsue Tatumi, A. R. E. Prinsloo, C. J. Sheppard
Summary: This study investigates the impact of 120 MeV swift Au9+ ion irradiation on the structures of monoclinic, tetragonal, and cubic ZrO2 using X-ray diffraction (XRD) and Raman spectroscopy. The results show a partial phase transition from monoclinic to tetragonal ZrO2, with a transition rate of approximately 74%. Interestingly, a phase transition from cubic to tetragonal ZrO2 was observed under 120 MeV Au9+ ion irradiation. The study discusses the effects of transient temperature, defects, and strain induced by swift heavy ions. This research provides insights into the structural stability of different phases of ZrO2 under swift heavy ion irradiation, which is valuable for selecting potential applications in nuclear reactors, oxygen sensors, accelerators, and radiation shielding.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2023)
Article
Chemistry, Physical
Takashi Yamamoto, Hirotaka Mine, Shoki Katada, Taketo Tone
Summary: The direct synthesis of ethyl acetate from ethanol was studied using Cu catalysts supported on various acid-base metal oxides, ZrO2-based oxides, and homemade amorphous-, monoclinic- and tetragonal zirconia prepared from the same Zr source. XRD, XAFS, TG-DTA characterization and surface area measurement were performed to analyze the catalysts. The effects of the crystalline phase of ZrO2 support on selective ethyl acetate production were discussed based on the yields and products ratio. Among the different catalysts tested, amorphous-type ZrO2 was found to be the most suitable for selective ethyl acetate formation without any surface modifications. The presence of acid sites on the surface of monoclinic-type ZrO2 catalysts possibly promoted an unfavorable acetaldehyde condensation reaction, but the addition of Na+ for poisoning increased the selectivity of ethyl acetate formation. The coordination environment of Cu species for fresh and spent catalysts was also discussed.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Nanoscience & Nanotechnology
Qiang Wang, Xin Li, Xinbin Ma, Zhenhua Li, Yunxia Yang
Summary: The basal plane of MoS2 was activated to enhance its hydrogenation activity. The prepared MoS2 catalysts showed a curved shape, and the catalysts pyrolyzed under a N-2 atmosphere had a larger number of S-vacancies. The increase in S-vacancies decreased the Mo-S bond energy and enhanced the catalytic activity.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Spectroscopy
Maneshwar Thakur, Ankush Vij, Fouran Singh, Vir Singh Rangra
Summary: This study investigates the structural and luminescent properties of zirconium dioxide synthesized via the solid-state combustion method. The results show that the synthesized zirconium dioxide mainly exhibits a tetragonal structure, with a minor monoclinic phase observed in some samples. The sample with a 1:1 nitrate-fuel ratio demonstrates a more pronounced overall thermoluminescence intensity.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Materials Science, Ceramics
Yongzhe Wang, Nicolas Brodusch, Raynald Gauvin, Chucheng Lin, Yi Zeng
Summary: An in situ study was conducted on Y2O3-ZrO2 coatings using electron backscattered diffraction, focusing on the selection and rearrangement of monoclinic variants. The results showed that the growth sequence and orientation relationship of the variants changed after heat treatment, indicating the effects of stress and stress relief on the martensitic transformation. Furthermore, it was found that the variants selection could be diversified during cyclic transformation, and the classical phenomenological theory mainly applied to temperature-triggered transformation.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Nanoscience & Nanotechnology
Ali El Boutaybi, Thomas Maroutian, Ludovic Largeau, Nathaniel Findling, Jean-Blaise Brubach, Rebecca Cervasio, Alban Degezelle, Sylvia Matzen, Laurent Vivien, Pascale Roy, Panagiotis Karamanis, Michel Rerat, Philippe Lecoeur
Summary: The crystal structure and ferroelectric properties of ZrO2 films with thickness ranging from 7 to 42 nm grown on (110)-oriented SrTiO3 substrate with La0.67Sr0.33MnO3 buffer layer are reported. It is confirmed that the films have a tetragonal phase structure and exhibit ferroelectric behavior at thinner thicknesses, but the ferroelectricity diminishes with increasing film thickness.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Baihui Li, Lin Chen, Mingyu Hu, Keren Luo, Jiang Tian, Jing Feng
Summary: This study investigated the ferroelastic tetragonal-monoclinic (t-m) phase transition, anisotropic thermal expansion coefficients (TECs), and spontaneous strain of rare-earth tantalates and niobates. The experimental results showed that the unit cell volume and TECs increased continuously with temperature, and the dominant mechanisms of thermal expansion were proposed. The different orientation states caused by the t-m transition led to the formation of ferroelastic domains, and the relationship between the t-m transition and spontaneous strain was determined, providing a theoretical basis for further property tailoring. This work contributes to a better understanding of the t-m phase transition and advances the applications of ferroelastic ceramics.
SCRIPTA MATERIALIA
(2023)
Article
Nanoscience & Nanotechnology
X. L. Zhang, X. Zhang, L. C. Zhang, Z. G. Huang, F. Fang, J. J. Hu, Y. X. Yang, M. X. Gao, H. G. Pan, Y. F. Liu
Summary: Nano-ZrO2 catalyst synthesized through a solvothermal process exhibits superior catalytic activity and hydrogenation kinetics in MgH2 for hydrogen storage, enabling hydrogen release and uptake at lower temperatures.
MATERIALS TODAY NANO
(2022)
Article
Biochemistry & Molecular Biology
Rafael R. C. Mancera, Viviane S. Vaiss, Oliver E. E. Espino, Roberto R. de Avillez, Lucia G. Appel, Luciano T. Costa
Summary: This study investigates the properties of doped zirconia crystalline phases using computational methods and finds that doped zirconia is more prone to oxygen vacancy formation compared to the pure material, with the monoclinic phase favoring vacancy formation. Doping with zinc also increases the number of basic and acidic sites, and the most stable material is the Zn-doped 3-fold coordinated Zr atom.
JOURNAL OF MOLECULAR MODELING
(2022)
Article
Chemistry, Inorganic & Nuclear
Matilde Saura-Muzquiz, Bryce G. Mullens, Helen E. Maynard-Casely, Brendan J. Kennedy
Summary: NdNbO4 and NdTaO4 undergo a reversible phase transition from a monoclinic I2/a phase to a tetragonal I4(1)/a phase at high temperatures, with the breaking of long bonds believed to be responsible for the first order nature of the transition.
DALTON TRANSACTIONS
(2021)
Article
Nanoscience & Nanotechnology
Hui Wang, Hongyuan Chuai, Xiaoyi Chen, Jianlong Lin, Sheng Zhang, Xinbin Ma
Summary: In this study, large-scale self-supported porous carbon nanofiber electrodes decorated with atomically dispersed nickel active sites were synthesized using a facile electrospinning method. The self-supported carbon nanofibers achieved a CO Faraday efficiency of 94.3% and a current density of 170 mA/cm2 as a gas diffusion electrode, attributed to the rich mesoporous structures for CO2 adsorption and mass transfer, as well as the effective conversion of CO2 to CO by single nickel catalysts. This work provides an efficient strategy for fabricating self-supported electrodes and may accelerate the industrial applications of single-atom catalysts in CO2 electroreduction field.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Jinquan Chang, Max J. Hulsey, Sikai Wang, Maoshuai Li, Xinbin Ma, Ning Yan
Summary: Researchers report a new electrothermal water-gas shift (WGS) process that combines the thermal oxidation of CO and electrocatalytic H2 evolution to obtain high-purity H2 streams. By using a silicomolybdic acid-supported Pd single-atom catalyst and phosphomolybdic acid as a redox mediator, the two half-reactions are coupled to achieve stable H2 production with a purity consistently exceeding 99.99%.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
Qiao Zhao, Xiaoxue Han, Haoting Liang, Yue Wang, Jing Lv, Mei-Yan Wang, Shouying Huang, Xinbin Ma
Summary: Both appropriate support and promoter decoration are important for improving the performance of Fe-based catalysts in Fischer-Tropsch Synthesis (FTS). This study utilized KOH chemical activation to modify N-doped carbon nanosheets supported Fe catalysts, achieving simultaneous support modification and promoter introduction. The effects of KOH activation on pore structure, N configuration, and residual K were investigated. The results showed that KOH activation enriched micro-porosity, improved Fe dispersion, and regulated N configuration. The combination of pyrrolic N sites and suitable K residuals contributed to electron donation, promoting Fe carburi-zation and increasing C2-C4= productivity. This finding provides an activation method for preparing N-doped carbon supported metal catalysts.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Hai Liu, Yaqiong Su, Zhihui Liu, Hongyuan Chuai, Sheng Zhang, Xinbin Ma
Summary: In this study, ultrathin SnO2 nanosheets exposed with (001) facets were synthesized to achieve highly selective electrocatalytic CO2 reduction to formate. The introduction of Nafion/PTFE/SnO2 TPB porous structure significantly enhanced the single-pass carbon efficiency in 1 M KOH electrolyte. Engineering triple-phase boundaries and increasing active sites proved to be an effective approach for advanced CO2 electrolyzers.
Article
Engineering, Chemical
Yutong Pan, Xiaoyu Han, Xiao Chang, Heng Zhang, Xiaohui Zi, Ziwen Hao, Jiyi Chen, Ziji Lin, Maoshuai Li, Xinbin Ma
Summary: Nickel-based catalysts are the most promising selection for CO2 methanation. This study develops ceria-supported bimetallic Ni-Ru catalysts that exhibit high efficiency for low-temperature methanation. The addition of a small amount of Ru to Ni enables intermetallic interaction, enhancing the catalytic capacity for hydrogen activation and CO adsorption, and resulting in a significant increase in the reaction rate for CO2 methanation.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Minglu Li, Siyu Kuang, Hai Liu, Qun Fan, Sheng Zhang, Xinbin Ma
Summary: This study investigates the stability of Cu catalysts in a CO2RR environment and proposes a strategy to improve their stability by depositing a porous carbon overlay. Results show that hydroxides in electrolytes play a key role in the morphology evolution of Cu catalysts and decrease the Faradaic efficiencies of C2+ products. The added carbon overlay effectively resists the influence of hydroxide corrosion on Cu catalysts and maintains the morphology and Faradaic efficiencies.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Xiaoxue Han, Jing Lv, Shouying Huang, Qiao Zhao, Yue Wang, Zhenhua Li, Xinbin Ma
Summary: The conversion of syngas to liquid fuels and chemicals using Fischer-Tropsch synthesis is a promising alternative route. In this study, carbon-encapsulated nanoparticles were synthesized to control particle size and improve catalytic activity. The catalytic performance of these nanoparticles (Fe@C) was found to be superior to conventional carbon-supported nanoparticles (Fe/C). By tuning the particle size, a peak in iron time yield was obtained, suggesting that particle size plays a significant role in catalytic performance. This study provides insights into the size effect on Fe-based catalytic Fischer-Tropsch synthesis.
Article
Energy & Fuels
Yi Li, Chao Mu, Guangxin Chu, Yule Wang, Jing Xu, Xuan Guo, Yujun Zhao, Shengping Wang, Xinbin Ma
Summary: In the process of two-step vegetable oil hydroconversion into jet fuel, the hydrocracking of green diesel plays a crucial role in determining the final yield. To maximize bio-jet fuel production, the hydroconversion of hexadecane, a model compound for green diesel, was studied using Pt-supported HY and dealuminated HY (HY-DA) zeolites in a fixed-bed reactor. It was found that Pt/HY-DA exhibited closer characteristics to ideal hydrocracking, leading to higher yields and selectivity to jet fuel compared to Pt/HY.
Article
Engineering, Chemical
Meilin Wang, Shixin Hou, Youwei Yang, Ziheng Zhen, Jing Lv, Shouying Huang, Yue Wang, Xinbin Ma
Summary: In this study, surface modified Cu/SiO2 catalysts were prepared by postgrafting method using organic silane coupling agents, and the introduced amine species were found to reduce the amounts and intensity of basic sites, leading to a decrease in byproducts selectivity and an improvement in ethylene glycol selectivity. The amine species also showed an electron-donating effect and significantly increased the proportion of Cu-0 species. It was demonstrated that the synergistic catalysis between copper species and medium-strong basic sites accounted for the superior catalytic activity in dimethyl oxalate hydrogenation. These findings could contribute to the development of Cu/SiO2 catalysts for ester hydrogenations in industrial applications.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Wenyan Jia, Maoshuai Li, Mingchan Chen, Jing Lv, Mei-Yan Wang, Xiaojun Bao, Xinbin Ma
Summary: In this study, the detailed mechanism pathways for ethylene oxide methoxycarbonylation over Co-based complexes were established, along with the reaction pathway of the main by-product acetaldehyde. The effect of nitrogen-containing heterocycles on the pathways was examined using DFT calculation and experimental study. The addition of pyrazole as a ligand generated the highest conversion and selectively inhibited by-product formation, leading to the highest selectivity of methyl 3-hydroxypropionate.
MOLECULAR CATALYSIS
(2023)
Review
Energy & Fuels
He Yao, Mei-Yan Wang, Chengguang Yue, Bangman Feng, Wenhao Ji, Chunbo Qian, Shengping Wang, Sheng Zhang, Xinbin Ma
Summary: Electrocarboxylation of CO2 with organic substrates is a promising method for sustainable synthesis of carboxylic acids. The reaction performance and product distribution depend on the cathodic behavior and reaction mechanisms. This study reviews recent advancements in electrocarboxylation and discusses different cathodic reaction pathways to provide references for novel methodologies.
TRANSACTIONS OF TIANJIN UNIVERSITY
(2023)
Article
Engineering, Chemical
Xiaofei Wang, Xiaoxue Han, Li Kang, Shixiang Feng, Meiyan Wang, Yue Wang, Shouying Huang, Yujun Zhao, Shengping Wang, Xinbin Ma
Summary: By synthesizing a series of novel Cu-based catalysts and studying the modification effect of alkali metals, it was found that the electron density of Cu sites can be significantly enhanced by the alkali metal modification, which affected the selectivity of deoxygenation and hydrogenation reactions and promoted the selectivity of benzene.
GREEN CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Surani Bin Dolmanan, Annette Boehme, Ziting Fan, Alex J. King, Aidan Q. Fenwick, Albertus Denny Handoko, Wan Ru Leow, Adam Z. Weber, Xinbin Ma, Edwin Khoo, Harry A. Atwater, Yanwei Lum
Summary: Gas diffusion layers (GDL) are crucial in electrochemical CO2 reduction (CO2R) systems to achieve high current densities. It is commonly believed that the choice of catalyst and electrolyte is more important than GDL in determining product selectivity. However, our study shows that adjusting GDL pore size can significantly impact catalytic outcomes by controlling the local microenvironment of the catalyst. Experimental and simulation results demonstrate that smaller pore sizes promote the generation of formate instead of CO due to the influence of pore size on CO2 mass transport and local pH at the electrode. This highlights the importance of the local microenvironment as a tunable parameter for controlling product selectivity in the design of CO2R systems.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Xiaofei Wang, Shixiang Feng, Yue Wang, Yujun Zhao, Shouying Huang, Shengping Wang, Xinbin Ma
Summary: In this study, Mn-doped Cu/Al2O3 catalysts were synthesized for the liquid-phase hydrodeoxygenation (HDO) of lignin-derived anisole. Mn doping enhanced the selective deoxygenation of anisole to arenes and inhibited saturated hydrogenation on Cu/Al2O3. The modification of Cu particles with MnOx along with enhanced generation of oxygen vacancies (Ov) led to a controllable adsorption geometry of anisole, resulting in increased arenes selectivity.
GREEN ENERGY & ENVIRONMENT
(2023)
Article
Chemistry, Physical
Hai Liu, Boyang Li, Zhihui Liu, Zhanpeng Liang, Hongyuan Chuai, Hui Wang, Shi Nee Lou, Yaqiong Su, Sheng Zhang, Xinbin Ma
Summary: In this study, CeO2-SnO2 heterostructures were synthesized and exhibited a maximum formate partial current density of about 500 mA·cm-2, with an 87.1% faradaic efficiency and long-term stability in a flow cell. A dynamic CeO2-mediated Sn0/Snδ+ redox cycle mechanism was proposed based on experimental analysis. This work provides a general strategy for designing stable and efficient catalysts for practical CO2 electrolyzers.
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)
