CORROSION SCIENCE
·
2021
·
IF 7.205
Mingde Tong,Qiangang Fu,Mingyu Liang,Tao Feng,Wanbo Hou,Jia Sun,Xinhao Shi
To optimize the impact-ablation resistance of SiC nws @PyC/HfC coating, PyC-SiC double-layer interface phase was introduced. After impacting test, the crack widths of SiC nws @PyC-SiC/HfC were much lower than that of SiC nws @PyC/HfC coating. The impact-ablation resistance of SiC nws @PyC-SiC/HfC coating was better than that of SiC nws @PyC/HfC coating. The good impact-ablation resistance SiC nws @PyC-SiC/HfC coating attributed to the two-grade pull-out reinforcement effect, self-sealing function of Hf-Si-O glass generated from oxidation of SiC nws @PyC-SiC core-shell structure and the precipitation of HfO 2 grains from Hf-Si-O glass under ablation environment.
研究领域:
材料科学
·
航空航天工程
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2019
·
IF 5.155
Weihuang Yang,Hua Li,Jiajun Chen,Jun Yin,Jing Li,Yaping Wu,Bingjie Mo,Ting Wu,Baofan Sun,Zhiming Wu,Hao Wang,Linxi Dong,Gaofeng Wang
Monolayer transition metal dichalcogenides (TMDs) usually have weak optical emission due to the poor light absorption as being atomically thin. Enhancing their optical properties by surface plasmon resonance is attractive for applying atomically thin TMDs in optoelectronic and photonic devices. Here, Ag/WS 2 hybrid structure was fabricated by transferring monolayer WS 2 grown via chemical vapor deposition (CVD) onto optimized periodic Ag nanoprism array with well-matched resonance by controlling the mask geometry and etching time of polystyrene (PS) nanospheres. Significant enhanced photoluminescence (PL) emission and Raman scattering were successfully achieved. Especially, the higher enhancement is realized for neutral excitons of monolayer WS 2 . Theoretical calculations reveal that the plasmonic enhancement mainly results from the highly enhanced local electric field and the charge transfer. This work explores the feasibility of exciton emission and Raman scattering enhancement for TMDs with plasmonic nanostructures fabricated by low-cost and easily-manipulated nanosphere lithography (NSL), which paves a way towards the applications of plasmon-enhanced TMD sensors, emitters, and photodetectors.
研究领域:
纳米光子学
·
等离激元学
·
二维材料
·
光电子学
·
材料科学
✓ 已验证
DOI
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2017
·
IF 4.784
Feng Zhang,Yajuan Zhong,Xu Yang,Jun Lin,Zhiyong Zhu
Metals are promising high-temperature phase change materials (PCMs) with high heat storage density and high heat exchange rate for high high-temperature heat storage. However, encapsulation of metallic PCMs is essential for its practical application owing to its highly corrosive to encapsulation materials and its volume expansion during the phase change. The present study applied spouted bed chemical vapor deposition (CVD) method to encapsulate metallic PCMs. A novel heat storage capsule was developed using iron core encapsulated with porous pyrolytic carbon (PyC) layer, dense PyC layer and dense silicon carbide (SiC) layer in turn from inside to outside. The inner porous PyC layer is used to accommodate the volume expansion of the iron core and the outer dense SiC layer act as package layer and the oxidation resistance layer. The SiC/C-shells/Fe-core capsules could work at a temperature up to 1100 °C and include solid-solid phase change (48.85 J/g, 686 °C) and solid-liquid phase change (128 J/g，1136 °C). It is demonstrated that the SiC/C-shells/Fe-core capsules have several desired characteristics, such as high thermal conductivity and high thermal density, excellent oxidation resistance and good thermal cycling performance.
研究领域:
材料科学
·
化工
·
热能存储
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS LETTERS
·
2023
·
IF 3
Huaide Chen,Guojun Xu,Chenxin Jin,Jize Wu,Linwu Xiong,Xiaomin Li,Fugen Sun,Lang Zhou,Zhihao Yue
Silicon monoxide (SiO x , 0 < x < 2) has been limited in commercial applications due to its low electrical conductivity and large volume expansion effect. The existing method is to use liquid phase method for carbon coating treatment, but some problems such as uneven coating are still exist. Therefore, in this paper, C 2 H 2 is used as carbon source to coat SiO x material in a rotating chemical vapor deposition furnace to obtain hard carbon coated SiO x (SiO x @C) material. At the rate of 0.5C (1C = 2.1 A g −1 ), the discharge specific capacity of SiO x @C remained at 1116.8 mAh g −1 after 140 cycles, which is 539.8 mAh g −1 higher than SiO x .
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·
IF 19
Xiang Zhou,Dingding Zhu,Yong Su,Feixiang Wu,Xiaolei Ren,Xuedong Zhang,Xiangze Ou,Yaling Rao,Long Xie,Liang Tang,Jianyu Huang,Qiao Huang
Metal fluorides (MFs) are regarded as high-capacity conversion cathode materials for next-generation lithium-ion batteries with high energy density. However, these cathodes suffer from poor electronic conductivity, sluggish reaction kinetics, and deleterious cathode solid electrolyte interface (CEI) formation, which may cause rapid cell degradation upon cycling. Herein, a low temperature chemical vapor deposition (CVD) carbon coating technology is successfully achieved to coat MFs-FeF 2 with a thin amorphous carbon layer, which promotes the formation of a stable CEI with improved electronic and ionic transport property. Consequently, a discharge capacity higher than 450 mAh g −1 of the CVD coated FeF 2 is achieved with a capacity retention at about 75% after 2500 cycles in a saturated electrolyte. Moreover, an unprecedented cycling performance with the discharge capacity of 350 mAh g −1 after 500 cycles in a super diluted electrolyte is also achieved. Advanced cryo-electron microscopy reveals that the carbon coating significantly suppresses the undesirable CEI formation and promotes the formation of a thin CEI with excellent chemo-mechanical property. This work provides a feasible technology to stabilize the important interface on MFs and offers a new strategy to accelerate the commercial adoption of such cathodes.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED MATERIALS
·
2024
·Vol. 36
·期 15
·2308950
·
IF 27.4
Sensheng Chen,Ge Chen,Yixuan Zhao,Saiyu Bu,Zhaoning Hu,Boyang Mao,Haotian Wu,Junhao Liao,Fangfang Li,Chaofan Zhou,Bingbing Guo,Wenlin Liu,Yaqi Zhu,Qi Lu,Jingyi Hu,Mingpeng Shang,Zhuofeng Shi,Beiming Yu,Xiaodong Zhang,Zhenxin Zhao,Kaicheng Jia,Yanfeng Zhang,Pengzhan Sun,Zhongfan Liu,Li Lin,Xiaomin Wang
The real applications of chemical vapor deposition (CVD)-grown graphene films require the reliable techniques for transferring graphene from growth substrates onto application-specific substrates. The transfer approaches that avoid the use of organic solvents, etchants, and strong bases are compatible with industrial batch processing, in which graphene transfer should be conducted by dry exfoliation and lamination. However, all-dry transfer of graphene remains unachievable owing to the difficulty in precisely controlling interfacial adhesion to enable the crack- and contamination-free transfer. Herein, through controllable crosslinking of transfer medium polymer, the adhesion is successfully tuned between the polymer and graphene for all-dry transfer of graphene wafers. Stronger adhesion enables crack-free peeling of the graphene from growth substrates, while reduced adhesion facilitates the exfoliation of polymer from graphene surface leaving an ultraclean surface. This work provides an industrially compatible approach for transferring 2D materials, key for their future applications, and offers a route for tuning the interfacial adhesion that would allow for the transfer-enabled fabrication of van der Waals heterostructures.
研究领域:
材料科学
·
纳米技术
·
化学工程
✓ 已验证
DOI
高影响因子
Polymers
·
2023
·Vol. 15
·期 10
·2309
·
IF 5
Guangming Yang,Fei Cheng,Shihao Zuo,Jinheng Zhang,Yang Xu,Yunsen Hu,Xiaozhi Hu
This study employed novel joint treatments to strengthen the carbon fiber reinforced polymer (CFRP) composites. Vertically aligned carbon nanotubes (VACNTs) were prepared in situ on the catalyst-treated CF surface via the chemical vapor deposition (CVD) method, intertwining into three-dimensional fiber-nets and fully surrounding CF to form an integrated structure. The resin pre-coating (RPC) technique was further used to guide diluted epoxy resin (without hardener) to flow into nanoscale and submicron spaces to eliminate void defects at the root of VACNTs. Three-point bending testing results showed the “growing CNTs and RPC”-treated CFRP composites yielded the best flexural strength, a 27.1% improvement over the specimens without treatment, while the failure modes indicated that the original delamination failure was changed into “flexural failure” with through-the-thickness crack propagation. In brief, growing VACNTs and RPC on the CF surface enabled toughening of the epoxy adhesive layer, reducing potential void defects and constructing the integrated quasi-Z-directional fiber bridging at the CF/epoxy interface for stronger CFRP composites. Therefore, the joint treatments of growing VACNTs in situ via the CVD method and RPC technique are very effective and have great potential in manufacturing high-strength CFRP composites for aerospace applications.Keywords:carbon fiber reinforced polymer (CFRP);chemical vapor deposition (CVD);resin pre-coating (RPC);vertically aligned carbon nanotubes (VACNTs);integrated fiber bridging
研究领域:
材料科学
·
复合材料工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Energy Storage
·
2025
·
IF 9.8
C. Liu,H.P. Zhou,H. Zhou,B. Yang,Z.K. Li,S. Zhang,T.T. Feng,Z.Q. Xu,Z.X. Fang,M.Q. Wu
The chemical vapor deposition (CVD) based Si C composite anode materials attract worldwide attention due to their potential to solve the notorious problems of volume expansion and electrode instability of Si-based anode materials. Herein, a high-strength, high-flexibility, and high-conductivity carbon skeleton composed of graphene and carbon nanotubes (CNTs) was constructed via spray-drying to load Si using the CVD process . The unique electrical, mechanical, and porous properties of the composite carbon skeleton jointly contribute to the excellent electrochemical performance of the composite anode. Even without the carbon coating, this composite possesses a high capacity of 1154 mAh g −1 and a capacity retention of 98.7 % after 150 cycles at 0.5 A g −1 . Plasma-enhanced chemical vapor deposition (PECVD) was used to deposit an ultrathin onion-like carbon layer on the composite, further enhancing its cyclic stability (802 mAh g −1 @1 A g −1 with a capacity retention of 90.7 % after 500 cycles). The composite anode's significant potential was further confirmed in a full cell paired with a commercial NCM811 cathode, achieving a high energy density of 430 Wh kg −1 and an outstanding capacity retention of 72.0 % after 150 cycles at 1C.
研究领域:
材料科学
·
电化学
·
纳米材料
·
能源存储
·
复合材料
·
电池技术
✓ 已验证
DOI
高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2025
·
IF 8.9
Suyun Tian,Chuankai Yang,Yingzi Gu,Shengzhe Zhao,Xian Jian
Single-type carbon material is often limited in its application in the field of intelligent absorption due to their lack of outstanding performance. However, traditional physical mixing methods are difficult to achieve effective interface bonding and multifunctional coupling of carbon materials. Here, we developed an effective method to prepare the entangled CNTs anchoring in graphene for intelligent absorbing materials possessing thermal sensitivity effect combing hydrothermal and CVD methods. Interestingly, ultrafine CNTs with diameter below 18 nm catalyzed from Fe/Co nanocrystals well dispersed on rGO surfaces. The as-designed dielectric rGO-CNTs hybrids strongly bonding with magnetic Fe/Co catalyst have the excellent microwave absorption performance. The RL min value of the −37.7 dB at thickness of 1.6 mm is obtained for rGO-CNTs which is better than pure carbon materials. Furthermore, this rGO-CNTs microwave absorbing materials also possess thermal sensitivity effect. The linear fitted relationship of (R-R 0 )/R 0 −temperature is found with the slope of 0.2 %/°C, showing the regular and steady trends. It indicates a highly thermal sensitive feature has great potential for intelligent absorbing materials. This study opens a novel pathway for ultrafine CNTs entangled with graphene enhancing its high-performance microwave absorption coupled with thermal sensitivity effect.
研究领域:
材料科学
·
纳米技术
·
电磁功能材料
·
智能材料
·
微波吸收
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2024
·
IF 6.5
Jianbo Zhang,Zhijun Zhou,Bo Ge,Guina Ren,Tonghui Zhang,Zhaozhu Zhang
The discharge of industrial wastewater and the shortage of fresh water resources are increasingly endangering human daily life. In this experiment, bismuth oxychloride with oxygen vacancies was attached to a fabric surface using the solution deposition method, and then perfluoro-trichlorosilane was grafted on the surface to prepare a multifunctional superhydrophobic fabric. After mechanical stability testing, the fabric retained a water contact angle that consistently exceeded 150°, which could realize the selective adsorption of insoluble oil such as cyclohexane. Through a capture experiment of active species, the conclusion drawn was that holes (h + ) and superoxide free radicals (·O 2 − ) were primary active species for the photocatalytic degradation process. After 4 cycles of photodegradation, the degradation efficiency could still reach 92.8 %, showing excellent cyclic degradation stability. An interfacial solar steam generator (ISSG) was assembled using the superhydrophobic fabric as the support layer and a polypyrrole sponge as the photothermal layer, whose evaporation efficiency under one sun reached 2.8376 kg·m −2 ·h −1 , with a photothermal conversion efficiency of 92.255 %. This ISSG demonstrates excellent wastewater purification capabilities. Interfacial evaporation devices show promising prospects in solar-powered wastewater purification, which further expand the use of interfacial evaporation to solve the problem of water scarcity.
研究领域:
材料科学
·
环境科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2024
·Vol. 48
·期 22
·10133-10141
·
IF 2.7
Rong Tu,Jiangwei Liu,Yingqiu Zheng,Chao Song,Chitengfei Zhang,Yuzhe Han,Rongchen Xu,Guoqiang Luo,Song Zhang,Takashi Goto
NiO-based materials hold great promise as oxygen evolution reaction (OER) catalysts owing to their high intrinsic OER activity and good chemical stability. Herein, Ni/NiO/C hollow microspheres with high activity were successfully fabricated through a facile one-step mist chemical vapor deposition (mist-CVD) process using ethanolamine and nickel chloride as precursors. The high-temperature pyrolysis of the organic precursor yields a significant quantity of gas, leading to a rapid increase in pressure within the droplet, which prompts the nanoparticles to aggregate on the surface of the droplet and form a hollow structure. The crystal phase and morphology of the samples can be modulated through optimizing the decomposition temperature, and particularly, Ni/NiO/C porous hollow microspheres synthesized at 600 °C (Ni-600) presented the best OER activity, exhibiting an overpotential at 10 mA cm−2 (η10) of 286.4 mV and a Tafel slope of 54.8 mV dec−1. The outstanding OER electrocatalytic performance of Ni/NiO/C hollow microspheres is ascribed to the improved electronic conductivity facilitated by the existence of metallic Ni and amorphous C, coupled with the relatively large specific surface area derived from the unique hollow structure.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2023
·Vol. 19
·期 30
·2300154
·
IF 13.3
Rong Tu,Xinyu Li,Qingfang Xu,Tenghua Gao,Xian Zhang,Bao-Wen Li,Song Zhang,Takashi Goto,Lianmeng Zhang
The oriented growth of β-Ga 2 O 3 films has triggered extensive interest due to the remarkable and complex anisotropy found in the β-Ga 2 O 3 bulks. Remarkable properties, including stronger solar-blind ultraviolet (SBUV) absorption, better mobility, and higher thermal conductivity, are usually observed along <010> direction as compared to other low-index axes. So far, <010>-oriented β-Ga 2 O 3 film growth has been hindered by the lack of suitable substrates and higher surface energy of the (010) crystal plane. Herein, the first growth of uniquely <010>-oriented β-Ga 2 O 3 films on quartz substrates by laser chemical vapor deposition (LCVD) are reported. By investigating the effects of deposition temperature ( T dep ) and O 2 flow rate ( R O2 ) on the growth of β-Ga 2 O 3 films, it is found that the formation of <010> orientation is closely related to the higher stability of oxygen close-packed planes under O-rich condition. As a result, a grain size of up to ≈2 µm and a deposition rate of up to ≈ 40 µm h −1 are obtained. Metal-semiconductor-metal (MSM) type detector based on <010>-oriented β-Ga 2 O 3 film exhibits ultra-fast response speed, 1–2 orders of magnitude higher than those of most detectors based on β-Ga 2 O 3 films with other orientations.
研究领域:
材料科学
·
半导体物理
·
光电技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）