Article
Chemistry, Physical
Wen Zhang, Lei Guan, Bing Wang, Huiqiang Liu, Jian Wang, Xiaofan Hong, Junjie Long, Shaobo Wei, Xiao Xiong, Ying Xiong
Summary: This study presents a unique one-step microwave plasma chemical vapor deposition process to fabricate graphite/diamond composite films with high electron field emission performance. The researchers found that sharp edges, appropriate distribution density of nanosheets, and a good electron pathway from the bulk to the surface are key factors for electron field emission performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Mining & Mineral Processing
Xinbo Zhao, Chuanchang Li, Kaihao Bai, Baoshan Xie, Jian Chen, Qingxia Liu
Summary: This paper explores the use of different types of graphite as porous matrix for composite phase change materials and their application in battery thermal management. The study shows significant improvement in thermal conductivity of the composite materials, with SA/EG1 exhibiting better thermophysical properties.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Run-Qi Yan, Meng Cao, Yong-Dong Li
Summary: In this study, the inelastic scattering of incident electrons is considered as a crucial process in analyzing the significant differences in secondary electron emission between diamond and graphite. Dielectric functions and energy loss functions were calculated using first-principle calculations. The results reveal that diamond exhibits similar properties in different directions with a lower inelastic mean free path (IMFP) than graphite for electron energies above 30 eV. In graphite, the motion of incident electrons may exhibit directional preferences, resulting in deeper excitation positions and a higher number of secondary electrons moving in the horizontal direction compared to the vertical direction.
Article
Chemistry, Physical
Victor Ralchenko, Vadim Sedov, Artem Martyanov, Valery Voronov, Sergey Savin, Andrey Khomich, Mikhail Shevchenko, Andrey Bolshakov
Summary: We report on the growth of novel microcrystalline diamond-germanium composite films on Si substrates using microwave plasma assisted chemical vapor deposition. The structure of the films strongly depends on the deposition temperature, with competing Ge grains and diamond crystallites at lower temperatures, and enhanced diamond growth at higher temperatures. The composite shows optical transmission for wavelengths above 10 mm and exhibits bright optical emission of GeV color centers at 601 nm. The effective coefficient of thermal expansion can be tuned by adjusting the Ge volume fraction, facilitating integration with semiconductor wafers.
Article
Chemistry, Physical
Semir Tulic, Thomas Waitz, Maria Caplovicova, Gerlinde Habler, Viliam Vretenar, Toma Susi, Viera Skakalova
Summary: The study utilizes aberration-corrected transmission electron microscopy, Raman spectroscopy, and electrical transport measurements to investigate the structural changes during nickel-catalyzed graphitization of diamond, revealing competing atomistic processes and etching mechanisms influenced by different diamond surface orientations. This research sheds light on the synthesis of graphene-on-diamond heterostructures by clarifying the etching mechanisms and the impact of diamond surface terminations.
Article
Chemistry, Physical
Mengqi Liu, Shuang Xia, Wenjian Wan, Jun Qin, Hua Li, Changying Zhao, Lei Bi, Cheng-Wei Qiu
Summary: Using doped InAs multilayers under moderate external magnetic fields with gradient epsilon-near-zero frequencies, broadband non-reciprocal absorption that can be tailored within the mid-infrared spectral region has been demonstrated. The study of magneto-optical absorption has stimulated diverse energy-technology-related explorations, showing potential in breaking the current theoretical efficiency limits of energy devices compared with reciprocal counterparts. However, experimentally realizing strong infrared non-reciprocal absorption remains an open challenge, and existing proposals of non-reciprocal absorbers are restricted to a narrow working waveband.
Article
Chemistry, Physical
Junjie Long, Lei Guan, Jian Wang, Huiqiang Liu, Bing Wang, Ying Xiong
Summary: This study successfully fabricated high-performance flexible supercapacitors by directly growing vertical 3D diamond/graphite composite films on carbon cloth. The resulting vertical 3D porous DG films exhibit high specific capacitance, high capacitance retention, and good flexibility, making them suitable for energy storage in wearable electronic devices.
Article
Chemistry, Multidisciplinary
Dong Yeong Kim, Thomas J. Smart, Jochen Mannhart, Wolfgang Braun
Summary: This study investigates the use of thermal laser epitaxy (TLE) for growing carbon films on sapphire substrates. The results show that the crystallinity of carbon films can be controlled by the substrate temperature during growth. The study also characterizes the dependence of the growth rate on the power of the source-evaporating laser beam.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Materials Science, Multidisciplinary
Chenyi Hua, Jun Cai, Lili Li, Pan Pan, Jinjun Feng
Summary: Diamond/graphite composite films with tunable dielectric properties were prepared by microwave plasma chemical vapor deposition. The effect of methane flow rate on the morphology, phase composition, electric conductivity and dielectric properties of the films were investigated. Results showed that methane flow rate played an important role in governing the dielectric properties of the films and the possible microwave attenuation mechanism was explored.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Crystallography
Aleksei Chepurov, Valeri Sonin, Dmitry Shcheglov, Egor Zhimulev, Sergey Sitnikov, Alexander Yelisseyev, Anatoly Chepurov
Summary: The study explores the etching of natural diamonds using catalytic hydrogenation to produce a porous surface suitable for composites or substrates. The etching of diamond surfaces occurs perpendicularly with limited depth, and exhibits similarities to porous microsculptures observed on natural impact diamond crystals from the Popigai astrobleme.
Article
Engineering, Environmental
Bo Zhang, Liwei Wang, Chen Zhang, Shaofei Wu
Summary: Heat dissipation materials are crucial for thermal management in high-power-density flexible electronic devices. Conventional materials often fail to meet the required thermal conductivity and mechanical properties simultaneously, and enhancing their performance usually involves complex procedures. In this study, a simple and robust synthesis method was developed to create a high-performance thermal management material by processing natural cellulose nanofibers and graphite nanoplatelets.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Baoshan Xie, Chuanchang Li, Ya-Ling He
Summary: This study focuses on designing a specific 3D carbon framework as supporting material for composite phase change material (PCM) using the CaCO3-templated assembly technique, and explores the electro-heat conversion ability of the composites. The designed support material shows higher cumulative pore volume and loading capacity compared to the raw material. The thermal conductivity of the stearic acid-type composite is significantly improved, leading to faster heat storage and release rate. It is also proven that the composite can achieve electro-heat conversion at low trigger voltage, with conversion efficiency increasing with higher voltage and bulk density.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Zhe Ji, Qiang Lin, Zhewei Huang, Sulin Chen, Peng Gong, Zhengzong Sun, Bin Shen
Summary: This study demonstrates a novel process of in-situ fabrication of graphene sheets using the chemical vapor deposition (CVD) method, which decreases the stable coefficient of friction on microcrystalline diamond films and shows excellent load capacity and durability. The findings provide an effective approach to enhance the lubricity of any engineering diamond surface.
Article
Energy & Fuels
Chuanchang Li, Juan Liao, Baoshan Xie, Penghui Cao, Yi Long
Summary: Solid-liquid phase change material (PCM) has been widely researched, but its low thermal conductivity and leakage issue have hindered its large-scale commercial application. Researchers have developed a form-stable composite with a three-dimensional (3D) hybrid structure matrix using microcrystalline graphite (MG) as the structure material and silica sol as a binder and porous skeleton. The composite PCM showed improved energy storage characteristics, including thermal stability, energy storage capacity, and thermal reliability, compared to pure stearic acid.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Materials Science, Multidisciplinary
Wen-Tao Huang, Chaonan Lin, Xing Li, Jinhao Zang, Li Wan, Zhenfeng Zhang, Shaobo Cheng, Chongxin Shan
Summary: Diamond, as an attractive material for next-generation wide-bandgap devices, poses challenges in top-down processing due to its stable properties. The metal-catalyzed diamond etching process is promising, but the influence of defects on catalytic behaviors remains unclear. In this study, the behavior of nickel-catalyzed diamond etching was investigated, revealing that it is lattice plane-dependent and can be modulated by boron doping. Planar defects restrict the lateral movement of nickel nanoparticles, resulting in a higher etching rate. Additionally, diamond grain boundaries were observed to facilitate the transformation to graphite. These findings provide insights into the role of defects in metal-catalyzed diamond etching and have implications for controllable etching in the diamond-based semiconductor industry.
Article
Chemistry, Analytical
Hangyu Long, Xuezhang Liu, Youneng Xie, Naixiu Hu, Zejun Deng, Yunlu Jiang, Qiuping Wei, Zhiming Yu, Shugen Zhang
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2019)
Article
Nanoscience & Nanotechnology
Mingyang Ma, Bing Wang, Huiqun Liu, Danqing Yi, Fanghua Shen, Tongguang Zhai
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2020)
Article
Chemistry, Multidisciplinary
Sucheng Liu, He Zhu, Binghao Zhang, Gen Li, Hekang Zhu, Yang Ren, Hongbo Geng, Yang Yang, Qi Liu, Cheng Chao Li
ADVANCED MATERIALS
(2020)
Article
Engineering, Manufacturing
Hongxuan Wang, Jiayi Zhang, Bin Wang, Mingyang Ma, Danqing Yi
JOURNAL OF MANUFACTURING PROCESSES
(2020)
Article
Engineering, Mechanical
Mingyang Ma, Ruilin Lai, Jin Qin, Bin Wang, Huiqun Liu, Danqing Yi
Summary: The weld reinforcement has a significant impact on the mechanical properties of MIG welded joints. While increasing the tensile strength of the joint, it has a detrimental effect on fatigue properties by altering the mechanism of fatigue crack initiation and rupture compared to smooth specimens.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Chemistry, Physical
Yanchen Liu, He Zhu, Hekang Zhu, Yang Ren, Yizhou Zhu, Yalan Huang, Liang Dai, Shuming Dou, Jie Xu, Cheng-Jun Sun, Xun-Li Wang, Yida Deng, Qunhui Yuan, Xingjun Liu, Junwei Wu, Yanan Chen, Qi Liu
Summary: This study proposes a strategy to improve the reversibility of anionic redox by tuning the geometric shape of surface ligands, leading to significantly improved capacity and voltage retention in the cathode material of lithium-ion batteries.
ADVANCED ENERGY MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Yalan Huang, He Zhu, Hekang Zhu, Jian Zhang, Yang Ren, Qi Liu
Summary: Layered LiNi x Co y Mn1-x-y O2 (NCM) is expected to be the dominant cathode technology in the automotive industry. However, the severe capacity decay of NCM cathodes has hindered further success. In this study, in situ high-energy synchrotron x-ray diffraction (XRD) measurements were conducted on cycled NCM523 cathodes, providing key evidence for a mechanically induced capacity decay mechanism.
Article
Materials Science, Multidisciplinary
He-Kang Zhu, Zi-Jia Yin, Yu Tang, Yang Ren, He Zhu, Dong Luo, Si Lan, Li-Gao Yang, Qi Liu
Article
Chemistry, Multidisciplinary
He Zhu, Zhenpeng Yao, Hekang Zhu, Yalan Huang, Jian Zhang, Cheng Chao Li, Kamila M. Wiaderek, Yang Ren, Cheng-Jun Sun, Hua Zhou, Longlong Fan, Yanan Chen, Hui Xia, Lin Gu, Si Lan, Qi Liu
Summary: A Ti/Mg co-doping strategy was used to activate charge compensation in layered sodium oxides, leading to improved cycling stability in sodium-ion batteries.
Article
Nanoscience & Nanotechnology
Hekang Zhu, Tingting Yang, Pui-Kit Lee, Zijia Yin, Yu Tang, Tianyi Li, Leighanne C. Gallington, Yang Ren, Denis Y. W. Yu, Qi Liu
Summary: A facile method is developed to synthesize porous Ni-rich materials, which exhibit high capacity and stability as cathode materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Binghao Zhang, He Zhu, Yang Ren, Hekang Zhu, Weitong Lin, Ji-Jung Kai, Tianyi Li, Leighanne C. Gallington, Jincan Ren, Yalan Huang, Si Lan, Xiaopeng Tang, Qi Liu
Summary: The lifespan of lithium-ion batteries is influenced by unpredictable and complicated operation conditions. This study shows that the pause during charging-discharging process can cause significant capacity drop and reactivates harmful phase transition, leading to performance degradation. The discontinuous usage of rechargeable batteries is identified as a key factor for cycle life.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Zhenfei Cai, Shuai Wang, Hekang Zhu, Xinya Tang, Yangzhou Ma, Denis Y. W. Yu, Shihong Zhang, Guangsheng Song, Weidong Yang, Youlong Xu, Cuie Wen
Summary: This study successfully synthesized Li1.2Ni0.2Mn0.6O2 materials with different amounts of structural defects. Analyzing the microstructure and electrochemical performance, it was found that the disorder of the transition metal layer promoted the electrochemical activity of the material, while the Li/Ni antisites in the Li layer maintained its stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Xinqi Liang, Minghua Chen, Hekang Zhu, He Zhu, Xuehao Cui, Jiaxu Yan, Qingguo Chen, Xinhui Xia, Qi Liu
JOURNAL OF MATERIALS CHEMISTRY A
(2020)
Review
Chemistry, Physical
Jincan Ren, Yalan Huang, He Zhu, Binghao Zhang, Hekang Zhu, Shenghui Shen, Guoqiang Tan, Feng Wu, Hao He, Si Lan, Xinhui Xia, Qi Liu
Review
Chemistry, Physical
He Zhu, Yalan Huang, Hekang Zhu, Liguang Wang, Si Lan, Xinhui Xia, Qi Liu
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)
