Article
Chemistry, Physical
Zhitao Yuan, Yuankai Xu, Qingyou Meng, Yanbin Tang, Li Yu
Summary: The structure-activity relationship of alcohol in the synergism between benzohydroxamic acid (BHA) and alcohol as mixed collectors was investigated. The results showed that an appropriate molecular structure of alcohol was advantageous for ilmenite flotation with BHA/alcohol collectors. The positive synergism was observed in BHA/alcohol systems at the gas-liquid intersurface and liquid phase, where mixed micelles were formed through hydrogen bonding and van der Waals interactions between BHA and alcohol molecules.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jianjun Zhu, Huamei Tong, Yu Liu, Jiahui Hu, Xinyu Zheng, Mengyue Qi, Deli Jiang
Summary: This study successfully designed an electrocatalyst with a 3D hierarchical nanoarchitecture by integrating interface engineering and heteroatom doping strategies, which exposed more active sites and accelerated reaction kinetics, leading to improved oxygen evolution reaction (OER) performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Junyi Li, Xianjie Liu, Mats Jonsson
Summary: In this work, the dissolution of UO2 in pure water and aqueous solutions exposed to gamma-radiation was experimentally studied. The results showed that high ionic strength and solution pH affected the adsorption of dissolved UO?+ on UO2 surfaces. Additionally, Br3- was observed in the solution containing Br- and it was found to quantitatively oxidize UO2. XPS and UPS analyses revealed significant oxidation of UO2 surfaces after exposure, with U(V) as the dominant state. In the case of pure water, the formation of uranyl peroxide secondary phases was observed. UPS results indicated the presence of U(VI) on the outer layer of UO2 after exposure to aqueous solutions containing Br- and Cl-, while 100% U(VI) was found in the pure water case.
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
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
F. Linss, C. Bundesmann, F. Frost
Summary: Ion beam erosion of Si under co-deposition circumstances can form surface patterns on the nano- and micrometer scale. This study investigates the effect of surfactant sputtering on ultra precision surface finishing. It is found that the formation and evolution of structures on the substrate are induced by the silicide-forming metals, leading to higher surface roughness. On the other hand, non-silicide-forming metals do not show patterning and result in lower surface roughness. Additionally, the co-deposition material affects the Si removal rate, with the scattering and sputtering properties playing a role in determining the removal change.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Liming He, Liming He, Hongda Xu, Xiaolong Wang, Quan Jin
Summary: In this study, hydrogenated hollow multi-shelled structure (HoMS) TiO2 was prepared using the sequential template method combined with hydrogenation treatment, followed by the synthesis of HH-T/PPy composite by in-situ polymerization. The HH-T/PPy composite possesses a uniform disordered interface and a uniform 3D conductive network, exhibiting improved microwave absorption performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Cheng Huang, Gaobo Chang, Dan Zhao, Zhong Li, Hanqing Zhao
Summary: By using electrospray method, researchers prepared three longitudinal lithium-friendly gradient anodes on oxidized carbon cloth. The anode showed controllable lithium deposition behavior and excellent electrochemical performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ningxin Wei, Hang Li, Jianliang Li, Longlong Sun, Jiewen Huang, Jian Kong, Qiujie Wu, Yan Shi, Dangsheng Xiong
Summary: Doping TMDs films with C/N dual-doping improves their mechanical, tribological, and anti-corrosion properties. The dopants introduce hard phase in TMDs phase and amorphous phase, achieving a balance between lubricating phase effect and mechanical performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Lan Yang, Libing Qian, Dawei Cao, Xu Li, Jiacheng Guo, Haoliang Zhang, Dongwei Zhang, Chunqing He
Summary: In this study, big crystals of HKUST-1 were synthesized under solvothermal conditions, and fine powders were ground from them and directly synthesized. The specific surface areas of the powders were found to be smaller than that of the big crystals, indicating micropore collapse. PALS analysis showed two different o-Ps lifetimes in the powders, while only one o-Ps lifetime was observed in the big crystals. Continuous positron lifetime analysis also supported this finding. These abnormal PALS results can be explained by the collapse of large surface pores and the formation of a dense layer on the surfaces of the fine powders, demonstrating the usefulness of PALS for studying the pore structures of MOFs.
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
Dan Villamanca, Marie Colin, Karin Ching, Aditya Rawal, Yanfang Wu, Dong Jun Kim, Marc Dubois, Sam Chen
Summary: In this study, graphene oxyfluoride films were prepared by gas-phase fluorination of graphene oxide layers, and the composition and stability of the films were successfully controlled. The resulting films exhibited stable morphology and structure, as well as tunable water stability and water vapor permeability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Shuang Tang, Xue-Lian Hu, Yang-Sen Xu, Wen-Wu Shi, Xin-Zhong Wang, Yu-Xiang Yu, Wei-De Zhang
Summary: Breaking the symmetry of polymeric carbon nitride (CN) skeleton by heteroatomic substitution can induce an in-plane polar electric field, thus promoting the migration and separation of photoexcited charge carriers. This research demonstrates that embedding a pyridine ring in the CN skeleton can enhance the optical absorption and photoinduced charge migration efficiency, resulting in improved photocatalytic performance and the ability to utilize sunlight more efficiently.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jie Li, Qiaoru An, Haisheng Fang
Summary: In this study, a particle transport model based on MC simulation in COMSOL was proposed to analyze the effects of working conditions and geometry parameters on deposition uniformity in magnetron sputtering. It was found that increasing pressure and decreasing temperature can improve deposition uniformity. The influence of geometry parameters on deposition efficiency and uniformity was also investigated, and it was found that the closer the zone with high particle deposition is to the substrate center, the higher the deposition efficiency, while the greater the particle concentration difference on the substrate, the lower the deposition uniformity. Moreover, optimized parameters were determined to maximize both the deposition efficiency and uniformity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Shiqiang Wang, Huiyun Jiang, Junjie Feng, Yan Jin, Fei An, Liang Zhu, Anshan Xiao
Summary: This study develops a bottom-up self-assembly strategy to construct a metal-dielectric-metal system for efficient detection of polycyclic aromatic hydrocarbons (PAHs). The hierarchical system exhibits localized enhanced electromagnetic field region and effective trapping ability for PAHs.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yuqi Zhou, Yuhua Huang, Jinming Li, Weishan Lv, Fulong Zhu
Summary: Scientists have found through simulation studies that the presence of chemical adsorbates on the surface of SiC during diamond polishing reduces material removal, while H2O2 solution can effectively reduce adhesive bonds and structural damage, improving the polishing process.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hua-Bin Yuan, Jin Cheng, Desheng Sha, ManMan Zhao, Tieling Xing, Guoqiang Chen
Summary: This study successfully developed a mild superhydrophobic modification technique for cotton fabric by incorporating ZIF-8 and curcumin, resulting in the creation of SHCZC material with excellent performance and multiple functionalities. The SHCZC material demonstrated superhydrophobicity, stability, antibacterial properties, and fouling resistance, among others, expanding its potential applications.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Erhui Zhang, Mengqi Yang, Yongsheng Zhou, Xiang Ke, Jing Tang, Jiahao Guo, Zirong Li
Summary: This study successfully fabricated a graphene-based porous membrane and utilized its synergistic advantages with silicon-oxy-carbide (SiOC) to prepare a flexible all-solid-state symmetric supercapacitor (ASSSs). Compared to traditional capacitors, this device exhibits higher power density and energy density, with potential applications in flexible energy storage devices.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhiheng Hao, Qian Wang, Peng Chen, Peng Xie, Zengxi Wei, Shuangliang Zhao
Summary: This study demonstrates a methodology to describe the catalytic activity of hydrogen peroxide on the metal doped surface of Pd(1 1 1) by constructing a structural descriptor. The descriptor enables the discrimination of catalyst performance, providing novel insights for the screening of high-performance surface alloy catalysts and the development of catalyst descriptor studies.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Wanli Li, Yitian Li, Lingying Li, Haidong Yan, Takeo Minari
Summary: This study proposes a hybrid ink containing Cu/Ni complexes and Cu particles for direct printing of high-performance Cu-Ni alloy traces. The nanoparticles formed by the decomposition of the complexes effectively bridge the interfaces among Cu particles, resulting in printed traces with low resistivity and excellent mechanical stability. The obtained Cu-Ni alloy traces exhibit multiscale core-shell structures and show strong potential for use in advanced electronics manufacturing.
APPLIED SURFACE SCIENCE
(2024)
