Materials Today Communications
·
2023
·
IF 3.8
Miao Jiang,Chao Xiao,Xusheng He,Huichao Du,Yanyan Wang,Xin Ding,Xian Zhang,Xiaofei Li,Kang Zheng,Xianglan Liu,Lin Chen,Xingyou Tian
Functional textiles with efficient sweat releasing and thermal insulating play a pivotal role in maintaining physiological comfort in cold winter. However, the breathability and warmth have conflicting structural demands on the conventional fabric. Here, a porous polyimide film (PIF) with tunable sweat release capability was prepared by growing a graphene layer through laser-ablation strategy. Jungle-like graphene layer offers the porous PI film with distinct advantages, including a desired super hydrophobic performance (water contact angle =153°), rapid air permeability (1572 g/m 2 ·24 h), quick drying function based on high photo-thermal and electro-thermal conversion efficiency, and outstanding thermal insulating capability (0.033 W/m·K). Moreover, the graphene layer can also be custom printed into various patterns, which expanded the application scenarios for wearable flexible electronics. Overall, this Janus design offered insight into the proactive control of sweat release and heat transfer within the hierarchical and interconnected network, providing promising benefits to the development of multifunctional drying and warming textiles.
研究领域:
材料科学
·
纺织工程
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DOI
高影响因子
APPLIED PHYSICS LETTERS
·
2023
·Vol. 122
·期 18
·
IF 4
Xu Baoyin,Du Haozhe,Yang Bin,Ding Zhanhui,Wang Xiancheng,Wang Yanchao,Li Ziheng,Li Yongfeng,Yao Bin,Ma Hong-An,Lan Yucheng
The exploration of novel ultrawide bandgap (UWBG) semiconductors is becoming a challenging and compelling research focus on semiconductor physics, materials, and device applications. Ternary B–C–N compounds have attracted much attention because their electronic structure and semiconductor properties are quite different depending on the chemical composition and atomic arrangement of boron, carbon, and nitrogen elements in the lattice. However, the lack of well-controlled high-quality B–C–N crystals has limited their potential as UWBG devices. In this study, B–C–N compounds are synthesized in bulks from graphite and hexagonal boron nitride ( h -BN) using ball milling and high-pressure high temperature technique. The synthesized B–C–N compounds produced are highly crystallized layered-materials with intercalated graphene layers in C-doped h -BN layers. The doped carbon atoms occupy boron sites and nitrogen sites of the h -BN layers unbalanced, giving rise to the n -type conductivity of the B-C-N layered compounds. The measured optical bandgaps range from 3.4 to 6.0 eV, which can be regulated by the carbon content. Their electronic properties are also tunable. Our work is expected to initiate potential applications of the B–C–N material as UWBG semiconductors.
研究领域:
材料科学
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半导体物理
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DOI
高影响因子
ADVANCED MATERIALS
·
2024
·Vol. 36
·期 31
·2403411
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IF 27.4
Xiaojia Du,Hai Wang,Yunfei Wang,Zhiqiang Cao,Leyi Yang,Xiaohu Shi,Xiaoxu Zhang,Chengzhi He,Xiaodan Gu,Nan Liu
Understanding psychology is an important task in modern society which helps predict human behavior and provide feedback accordingly. Monitoring of weak psychological and emotional changes requires bioelectronic devices to be stretchable and compliant for unobtrusive and high-fidelity signal acquisition. Thin conductive polymer film is regarded as an ideal interface; however, it is very challenging to simultaneously balance mechanical robustness and opto-electrical property. Here, a 40 nm-thick film based on photolithographic double-network conductive polymer mediated by graphene layer is reported, which concurrently enables stretchability, conductivity, and conformability. Photolithographic polymer and graphene endow the film photopatternability, enhance stress dissipation capability, as well as improve opto-electrical conductivity (4458 S cm −1 @>90% transparency) through molecular rearrangement by π–π interaction, electrostatic interaction, and hydrogen bonding. The film is further applied onto corrugated facial skin, the subtle electromyogram is monitored, and machine learning algorithm is performed to understand complex emotions, indicating the outstanding ability for stretchable and compliant bioelectronics.
研究领域:
材料科学
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生物医学工程
·
心理学
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DOI
PubMed
高影响因子
iScience
·
2023
·
IF 5.8
Yi Lu,Yi-Xuan Liu,Yong Wang,Robert Oestreich,Zi-Yan Xu,Wen Zhang,Philipp Hügenell,Christoph Janiak,Xiao-Yu Yang
Certain types of face masks are highly efficient in protecting humans from bacterial and viral pathogens, and growing concerns with high safety, low cost, and wide market suitability have accelerated the replacement of reusable face masks with disposable ones during the last decades. However, wearing these masks creates countless problems associated with personnel comfort as well as more significant issues related to the cost of fabrication, the generation of medical waste, and environmental contaminants. In this work, we present a facile spray-pressing technique for the production of P-masks with a potential scale-up prospect by adding a graphene layer on one side of meltblown fabric and a functional layer on the other side. In principle, this technique could be easily integrated into the present automatic mask production process and the masks have self-cleaning and/or self-sterilizing properties when it is exposed to solar or simulated solar irradiation.
研究领域:
材料科学
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生物医学工程
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环境科学
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DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Site Luo,Yang He,Yangjie Li,Bin Zhang,Wenjin Gao,Haihu Yu
Rewritable paper is of great significance for environmental and sustainable development. Specially, the water rewritable paper based on hydrochromism has aroused extensive research interesting for being clean, convenient and compatible with the current ink jet printer. Nevertheless, previously reported water rewritable paper requires complex and time-consuming fabricating process. Here, we report a facile strategy to fabricate structural colored water rewritable paper simply via two step infiltration on commercially available paper. After infiltration of graphene laminates and SiO 2 colloidal spheres in sequence, the obtained paper is integrated with assembled graphene laminates (AGLs)/amorphous colloidal arrays (ACAs) hierarchical composite structure. Owing to the advantageous micro-topography, selective separation capacity and high visible light absorption property of the underlying AGLs, SiO 2 ACAs with vivid structure color can be realized. Moreover, the hydrochomism of the hierarchical composite structure is resulted from the synergistic contribution of the hydrophilic structural color and the visible light absorption property of AGLs. Our strategy is based on the environmental-friendly structural color and convenient to realized, which offers a promising alternative to rapidly fabricate colored water rewritable paper.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
CHINESE JOURNAL OF CATALYSIS
·
2025
·
IF 17.7
Miao Zhang,Limin Zhang,Mingrui Wang,Guanghui Zhang,Chunshan Song,Xinwen Guo
CO 2 hydrogenation to value-added light olefins (C 2–4 = ) is crucial for the utilization and cycling of global carbon resource. Moderate CO 2 activation and carbon chain growth ability are key factors for iron-based catalysts for efficient CO 2 conversion to target C 2–4 = products. The electronic interaction and confinement effect of electron-deficient graphene inner surface on the active phase are effective to improve surface chemical properties and enhance the catalytic performance. Here, we report a core-shell FeCo alloy catalyst with graphene layers confinement prepared by a simple sol-gel method. The electron transfer from Fe species to curved graphene inner surface modifies the surface electronic structure of the active phase χ-(Fe x Co 1– x ) 5 C 2 and improves CO 2 adsorption capacity, enhancing the efficient conversion of CO 2 and moderate C-C coupling. Therefore, the catalyst FeCoK@C exhibits C 2–4 = selectivity of 33.0% while maintaining high CO 2 conversion of 52.0%. The high stability without obvious deactivation for over 100 h and unprecedented C 2–4 = space time yield (STY) up to 52.9 mmol CO2 ·g –1 ·h –1 demonstrate its potential for practical application. This work provides an efficient strategy for the development of high-performance CO 2 hydrogenation catalysts.
研究领域:
催化化学
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材料科学
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环境科学
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DOI
高影响因子
ACS Nano
·
2025
·
IF 16
Chenyu Ma,Xinru We,Wenting Feng,Guanzhong Ma,Jianhang Yang,Shuhao Fan,Yiming Sun,Han Wang,Zihui Liu,Junwei Han,Wei Lv,Debin Kong,Linjie Zhi
Rechargeable metal–chlorine (Li/Na–Cl2) batteries potentially have a high energy density, but the significant amount of electrolyte consumed to produce active metal chlorides for reversible chlorine conversion severely limits their real electrochemical performance. Herein, we use a cathode with precast metal chloride in the graphene layers as the initial active material to save the sacrificial electrolyte and deliver a fundamentally different start-up operation mode for metal–chlorine batteries. Furthermore, the metal chloride confined by the graphene layers achieves in situ confining conversion with gaseous chlorine during long cycling, causing substantially improved cathode kinetics in a lean electrolyte. With this cathode, both Li/Na–Cl2 batteries demonstrate higher capacity and prolonged cycling performance. Typically, the obtained Na–Cl2 batteries could deliver a high areal capacity (3 mAh cm–2) and stable life over 300 cycles under lean electrolyte conditions (20–60 μL). This work demonstrates the practical significance of utilizing a graphene interlayer to confine metal chloride as an initial active material for rechargeable alkali-metal-Cl2 batteries.
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PubMed
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2020
·Vol. 103
·期 10
·5579-5585
·
IF 3.502
Jian Zhao,Malin Liu,Jiaxing Chang,Youlin Shao,Bing Liu,Rongzheng Liu
SiC@Graphene (SiC@G) core-shell nanoparticles were successfully prepared by a facile fluidized bed (FB) chemical vapor deposition (CVD) method. SiC@G core-shell nanoparticles with an average size of 10 nm and graphene from 1 to 5 layers with a controllable thickness were obtained by finely adjusting the experimental temperatures. The formation of SiC nanoparticles and graphene layers was confirmed by the results of X-ray diffraction (XRD) and Raman Spectroscopy. The graphene content in SiC@G core-shell nanoparticles prepared at different temperatures was measured from thermogravimetric analysis (TG), which varied from 5.89% to 11.88 mass%. From X-ray photoelectron spectroscopy (XPS) results, no absorption assigned to Si-O band was detected, indicating the effective protection of the SiC nanoparticles against oxidation by the graphene shell to resist oxidation of SiC nanoparticles. This novel method of preparation of SiC@G core-shell nanoparticles could be applied to large-scale production and find diverse applications in related fields.
研究领域:
材料科学
·
纳米技术
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DOI
高影响因子
RARE METALS
·
2023
·Vol. 43
·期 2
·562-574
·
IF 8.8
Chen Jia-Xin,Zhang Guo-Qiang,Qin Xian-Ying,Lin Kui,Yang Zi-Jin,Liang Ge-Meng,Xia Yue,Zhang Guo-Bin,Wu Hai-Kun,Cai Qiu-Chan,Lin Hai,Li Bao-Hua
Uncontrolled growth of lithium dendrite will lead to low Coulombic efficiency and poor cycle stability, which hinders the commercialization of lithium metal batteries. Herein, a novel modified lithium anode with reduced graphene oxide conductive network containing trace lithiophilic phosphorus (P-rGO/Cu) is prepared by electrospraying technique combined with heat treatment process. The rGO layer has a concave and undulating conductive structure, which can significantly improve the effective electrical contact between lithium metal and the current collector, speed up the kinetics of interfacial electron transport and reaction, and improve the resistance of the negative electrode to the internal stress caused by volume change of the lithium, which is advantageous for the stability of the SEI film. The extremely small and uniformly distributed red phosphorus element avoids the volume change caused by lithiation to the maximum extent. Lithiophilic two-phase compound Li 3 P obtained by alloying P with Li can directionally induce the homogeneous nucleation and dense deposition of lithium metal, address the issue of lithium dendrites and extend the cycle life of the batteries. The obtained P-rGO/Cu exhibits excellent electrochemical performance with an average Coulombic efficiency (CE) of 98% at a current density of 1 mA·cm −2 for 400 cycles, and the capacity retention rate of the full cell matched with lithium iron phosphate (LFP) is 83% after 400 cycles at 1C. Graphical abstract
研究领域:
储能
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材料科学
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电化学
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纳米技术
·
表面工程
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DOI
高影响因子
Journal of the American Chemical Society
·
2025
·
IF 15.6
Pei Liu,Mengmeng Zheng,Yue Wang,Xiang-Yu Kong,Yingjie Zhao,Mengru Zhang,Qun Xu,Lei Jiang,Liping Wen
The process of photosynthesis in green plants and energy conversion in certain archaea are inseparable from photoregulated ion pumping. Two-dimensional (2D) nanofluidic membranes, emerging as competitive candidates for constructing ion pumps, present intriguing prospects for harvesting light energy. However, the inevitable presence of defects during the synthesis of 2D materials underscores the critical need to understand their impact on ion transport dynamics within nanofluidic systems. Here, we present a chemically engineered asymmetric nanofluidic membrane (ANM) by intercalating molybdenum trioxide (MoO3) with controlled oxygen vacancies into graphene oxide laminates, systematically investigating the defect chemistry-governed photo-activated ion transport. Upon photoexcitation, MoO3 nanosheets exhibit tunable surface plasmon resonance (SPR) through photochemical H+ intercalation, leading to an augmentation of oxygen vacancies and an elevated concentration of free electrons. These vacancies enrich MoO3 with excess localized surface electrons, enabling tunable SPR that creates negative charge centers and significantly enhances space charge through defect-induced polarization. Density functional theory (DFT) calculations reveal the atomic-level mechanism of vacancy-enhanced cation transport, showing a notable 188% increase in the adsorption energy of K+ at MoO3 surfaces with two vacancy sites compared to one vacancy (−13.66 vs −4.74 eV). Under asymmetric photo irradiation, the system achieves a peak power density of approximately 439.2 W/cm2 in equilibrium ionic solutions, realizing a photonic-to-ionic energy conversion efficiency of 7.98 × 10–4% via synergistic effects of defects and plasmonics. Our research pioneers the elucidation of the regulation and underlying mechanisms of intrinsic defects on active ion transport within nanofluidic membranes, while fostering a novel perspective on photon–electron–ion interplay within nanofluidic environments.
研究领域:
纳米流体学
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能量转换
·
材料科学
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物理化学
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光子学
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电化学
·
凝聚态物理
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DOI
PubMed
高影响因子
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