Hybrid silica-carbon bilayers anchoring on FeSiAl surface with bifunctions of enhanced anti-corrosion and microwave absorption

Tian, Wei; Zhang, Xingzhong; Guo, Yang; Mu, Chunlai; Zhou, Peiheng; Yin, Liangjun; Zhang, Linbo; Zhang, Li; Lu, Haipeng; Fu, Jianan; Deng, Longjiang

doi:10.1016/j.carbon.2020.11.002

Cited by 123 publications

(23 citation statements)

References 58 publications

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“…Moreover, the NCO1 electrode reveals a shorter and more ideal vertical line at the low frequency region among these electrodes, signifying effective electron/ion diffusion during the rapid GCD process. 36,37,39,40 The complete enriched electrochemical behavior of the electrode NCO1 nanosheet is illustrated in Figure 4I. It reveals that the well-regulated and highly open porous channels of the NCO1 nanostructure can promote an easy diffusion pathway for electrolyte ions and a larger contact area of the electrode.…”

Section: Materials and Electrochemical Characterization Details Are In The Supplementary Information 3 | Results And Discussionmentioning

confidence: 98%

Two dimensional layered nickel cobaltite nanosheets as an efficient electrode material for high‐performance hybrid supercapacitor

et al. 2021

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Nickel cobalt oxide (NCO) is considered an auspicious electrode candidate for the reinforcement of energy-storage devices. Currently, an immense interest is devoted to modifying the morphological aspects of the NCO to boost their surface texture and electrochemical performances, which is feasible for the development of high energy density and durable devices. Herein, we report the synthesis of layered NCO nanosheets via solvothermal reaction by tuning the solvent volume ratio (water/N,N-Dimethylformamide [DMF]) for supercapacitor electrode material. The nickel cobalt oxide is prepared utilizing a 1:2 (DMF:water) ratio of solvent (NCO1) displays a controlled growth of 2D nanosheets with excellent surface texture. Moreover, NCO1 demonstrates the battery type charge storage properties with a maximum specific capacitance (C sp ) of 731 F g À1 , which is far better than NCO2 (623 F g À1 ) and NCO3 (556 F g À1 ) prepared in other solvent proportions. Besides, the constructed hybrid supercapacitor utilizing activated carbon (AC) and NCO1 as the negative and positive electrodes, respectively, exhibits the C sp of 120 F g À1 , and maximum specific energy 37.33 W h kg À1 for the specific power 691.31 W kg À1 and demonstrates excellent stability~80.56% for 20 000 cycles.In different electrochemical energy storage devices, supercapacitors (SCs) have gained abundant consideration as a novel and promising future energy storage device. [1][2][3] Due to their cost effectiveness, fast discharge and charge rate, extraordinary power density, exceptionally extended lifespan, and better safety reliability. [4][5][6] Despite SCs have these excellent features, the limited energy density has severely restricted their feasible application compare to batteries. 7-9 Thus, it is essential to lift

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Section: Materials and Electrochemical Characterization Details Are In The Supplementary Information 3 | Results And Discussionmentioning

confidence: 98%

Two dimensional layered nickel cobaltite nanosheets as an efficient electrode material for high‐performance hybrid supercapacitor

et al. 2021

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“…As a result, stealth function for fighter can be achieved and unwanted EM wave irradiation can be prevented from threatening human health. [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 ] It is widely acknowledged that the requirements for excellent EM wave absorbers are well‐matched impedance and strong attenuation capacity. [ 11 , 12 , 13 , 14 , 15 ] For the former, when EM wave travels from air media to absorbers’ surface, impedance match means that the impedance of absorbing materials should close to the impedance of air.…”

Section: Introductionmentioning

confidence: 99%

Dielectric Loss Mechanism in Electromagnetic Wave Absorbing Materials

2022

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Electromagnetic (EM) wave absorbing materials play an increasingly important role in modern society for their multi-functional in military stealth and incoming 5G smart era. Dielectric loss EM wave absorbers and underlying loss mechanism investigation are of great significance to unveil EM wave attenuation behaviors of materials and guide novel dielectric loss materials design. However, current researches focus more on materials synthesis rather than in-depth mechanism study. Herein, comprehensive views toward dielectric loss mechanisms including interfacial polarization, dipolar polarization, conductive loss, and defect-induced polarization are provided. Particularly, some misunderstandings and ambiguous concepts for each mechanism are highlighted. Besides, in-depth dielectric loss study and novel dielectric loss mechanisms are emphasized. Moreover, new dielectric loss mechanism regulation strategies instead of regular components compositing are summarized to provide inspiring thoughts toward simple and effective EM wave attenuation behavior modulation.

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“…Fortunately, the proposition of the “cold sintering process” (CSP), which is a paradigm-shifting sintering technique at ultralow temperature, (generally <200 °C) with the assistance of a specific liquid phase and external pressure − can properly solve the abovementioned bottleneck issues by integrating the hydrothermal assembly. , ZrW 2 O 8 /ZrO 2 composites are expected to be fabricated below the DTR utilizing CSP so as to thoroughly overcome the unstable decomposition of the ZrW 2 O 8 phase, and then, the manufacturing size limitation will be eliminated with the quenching omitting. Moreover, the combination form of biphase particles could be modified by the hydrothermal assembly at a nanoscale so as to relieve the thermal mismatch on biphase interfaces.…”

Section: Introductionmentioning

confidence: 99%

ZrW₂O₈/ZrO₂ Composites with Low/Near-Zero Coefficients of Thermal Expansion Fabricated at Ultralow Temperature: An Integration of Hydrothermal Assembly and a Cold Sintering Process

Yang

Wang

et al. 2021

ACS Appl. Mater. Interfaces

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ZrW 2 O 8 /ZrO 2 composites with tunable low/nearzero coefficients of thermal expansion (CTE) are promising candidates in several fields including aerospace, precision manufacturing and measurement, electronic circuit, etc., for counteracting the thermal expansion effect. However, bottleneck issues (such as the unstable decomposition of ZrW 2 O 8 phase, manufacturing size limitation, etc.) caused by conventional hightemperature sintering impede the development and application of ZrW 2 O 8 /ZrO 2 . To solve these scientific issues, a methodology integrating hydrothermal assembly with a cold sintering process (CSP) is exploited. The ZrW 2 O 8 /ZrO 2 composite powders with a mace-like structure, in which the spherical ZrO 2 nanoparticles peripherally embed on the rod-like ZrW 2 O 8 matrix particles, are hydrothermally assembled. Then, the relatively dense ZrW 2 O 8 /ZrO 2 composites with excellent low or even near-zero CTE are successfully achieved by CSP (as low as 190 °C) with a postannealing treatment (550 °C). The evolution of sintering densification, phase composition, and microstructure followed by the fundamental mechanism regarding the hydrothermal assembly of the macelike structure and densification of CSP are investigated in detail. This research not only effectively overcomes the bottleneck issues of ZrW 2 O 8 /ZrO 2 via integrating the hydrothermal assembly with the sintering technology at ultralow temperature but also develops a promising prospect for the fabrication of a broader range of metastable functional materials. KEYWORDS: ZrW 2 O 8 /ZrO 2 composites, ceramics, low/near-zero coefficients of thermal expansion, hydrothermal assembly, cold sintering process

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Hybrid silica-carbon bilayers anchoring on FeSiAl surface with bifunctions of enhanced anti-corrosion and microwave absorption

Cited by 123 publications

References 58 publications

Two dimensional layered nickel cobaltite nanosheets as an efficient electrode material for high‐performance hybrid supercapacitor

Two dimensional layered nickel cobaltite nanosheets as an efficient electrode material for high‐performance hybrid supercapacitor

Dielectric Loss Mechanism in Electromagnetic Wave Absorbing Materials

ZrW₂O₈/ZrO₂ Composites with Low/Near-Zero Coefficients of Thermal Expansion Fabricated at Ultralow Temperature: An Integration of Hydrothermal Assembly and a Cold Sintering Process

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Hybrid silica-carbon bilayers anchoring on FeSiAl surface with bifunctions of enhanced anti-corrosion and microwave absorption

Cited by 123 publications

References 58 publications

Two dimensional layered nickel cobaltite nanosheets as an efficient electrode material for high‐performance hybrid supercapacitor

Two dimensional layered nickel cobaltite nanosheets as an efficient electrode material for high‐performance hybrid supercapacitor

Dielectric Loss Mechanism in Electromagnetic Wave Absorbing Materials

ZrW2O8/ZrO2 Composites with Low/Near-Zero Coefficients of Thermal Expansion Fabricated at Ultralow Temperature: An Integration of Hydrothermal Assembly and a Cold Sintering Process

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ZrW₂O₈/ZrO₂ Composites with Low/Near-Zero Coefficients of Thermal Expansion Fabricated at Ultralow Temperature: An Integration of Hydrothermal Assembly and a Cold Sintering Process