Rapid thermal thinning of black phosphorus

Fan, Shuangqing; Hei, Haicheng; An, Chongwei; Pang, Wei; Zhang, Daihua; Hu, Xiaodong; Wu, Sen; Liu, Jing

doi:10.1039/c7tc03462h

Cited by 43 publications

(49 citation statements)

References 47 publications

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“…In addition, GCN is also known to be versatile support for stable immobilization of metal nanoparticles (NPs). [41] these amine-functionalized GCNs in water and polar solvents, facilitating practical applications in green catalysis and sustainable chemistry. [42][43][44][45] For instance, noble metal NPs supported GCN nanosheets, being applied extensively in industry, have been demonstrated to be active catalysts for hydrogenation, [42] C-C coupling, [43] hydrolysis of ammonia borane, [44] and reduction of aromatic nitrocompounds.…”

Section: Introductionmentioning

confidence: 99%

Silver Nanoparticles Modified Graphitic Carbon Nitride Nanosheets as a Significant Bifunctional Material for Practical Applications

et al. 2017

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Amine‐functionalized graphitic carbon nitride (NH2/GCN) nanosheets photoluminescence, catalytic properties and excellent water dispersion stability were prepared and characterized by a variety of different analytical and spectroscopic techniques. The well‐dispersed NH2/GCN nanosheets were found to exhibit remarkable pH sensing sensitivity at an ambient temperature with desirable broad detection range (1 ≤ pH ≤ 12). Moreover, upon incorporating silver nanoparticles (Ag NPs), the Ag‐NH2/GCN nanocomposites showed excellent performances for catalytic reduction of 4‐nitrophenol (4‐NP) in NaBH4 with a superior rate constant (k) of 0.1594 s‐1 within as short as 30 s. The NH2/GCN and Ag‐NH2/GCN nanocomposites reported herein therefore render prospective applications as sensitive pH and practical catalytic applications.

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Section: Introductionmentioning

confidence: 99%

Silver Nanoparticles Modified Graphitic Carbon Nitride Nanosheets as a Significant Bifunctional Material for Practical Applications

et al. 2017

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“…All curves were nearly triangular in shape, which is typical behavior for capacitive electrodes. 53 HPC-1 had a smaller specic capacitance than HPC-2 and HPC-3. When the KOH to CCP ratio was increased from 1 to 2 in HPC-2 the gravimetric-specic capacitance increased rapidly from 230 to 320 F g À1 .…”

Section: Electrochemical Characterizationmentioning

confidence: 83%

Hierarchical porous carbon derived from carboxylated coal-tar pitch for electrical double-layer capacitors

Wang

Zhu

et al. 2019

RSC Adv.

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Hierarchical porous carbons have been synthesized using amphiphilic carboxylated coal-tar pitch as a precursor via a simple KOH activation process. Amphiphilic carboxylated coal-tar pitch has a high content of hydrophilic carboxyl groups that enable it to be easily wetted in KOH solution and that facilitate the activation process. In the present study, the effect of the activation agent to precursor ratio on the porosity and the specific surface area was studied by nitrogen adsorption-desorption. A maximum specific surface area of 2669.1 m 2 g À1 was achieved with a KOH to carboxylated pitch ratio of three and this produced a structure with micropores/mesopores. Among the various hierarchical porous carbons, the sample prepared with an activation agent to precursor ratio of two exhibited the best electrochemical performance as an electrode for an electrical double-layer capacitor in a 6 M KOH electrolyte. The specific capacitance of the sample was 286 F g À1 at a current density of 2 A g À1 and it had a capacitance-retention ratio of 93.9%, even after 10 000 cycles. Thus, hierarchical porous carbons derived from amphiphilic-carboxylated coal-tar pitch represent a promising electrode material for electrical double-layer capacitors.

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“…The micropore volume clearlyi ncreases from 0.02 cm 3 g À1 in PBP to 0.26 cm 3 g À1 in YBP as ar esulto fy eastr espiration, and the micropores in the latter can be furtherw idened by acid fusion to increase the mesopore contribution. [28] This hierarchical nanoarchitecture of YBP with ah igh specific surface area (1084 cm 2 g À1 )a nd al arge pore volume (0.50 cm 3 g À1 )c an reduce diffusional limitations and is highly desirable for energy storagea nd conversion.T he more prominent hierarchicalp orouss tructure and highers pecific surfacea rea of YBP suggest that yeast respiration has a significant effect on pore formation andt he pore-size distribution.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Biomass‐Derived Carbon Induced by Cellular Respiration in Yeast for Supercapacitor Applications

Lian

Zhou

et al. 2018

Chemistry A European J

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Because activated carbon is extensively used in supercapacitors, optimizationo fi ts precursors and synthetic strategies are crucial. Inspired by the richs ugar content of bananap eel waste, which can be transformedt hrough the respiration of yeast into alcohol with the releaseo fC O 2 ,w e developed an environmentally benigna nd highly efficient processf or the production of renewableh eteroatom-doped hierarchical porous carbon materials (yeast-treated bananapeel-based carbon,d enoted as YBP) without any additional templates or activationa gents. The resulting biologically activated carbon was characterized by near-edge X-ray absorption fine-structures pectroscopy,X -ray photoelectron spectroscopy,a nd other physicalm ethods.T he biologically acti-vated carbon achieved am aximum gravimetric specific capacitance of 476 Fg À1 in 1 m H 2 SO 4 electrolyte. Remarkably, with am oderates pecific surface area of 1084 m 2 g À1 ,t he asobtained activated carbon was found to have ahigh packing density.W ith enriched pseudocapacitance sites, the YBP symmetric supercapacitor has ah igh volumetric specific capacitance ande nergy density (maximum values of 264 Fcm À3 and 23.5 Wh L À1 ,r espectively). The supercapacitor showed superior cyclic stability,w ith 94 %c apacitance retention for voltage values up to 1.6 Vafter 10 000 cycles, which confirmed the promising application of this supercapacitor in miniature electronic devices.

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Rapid thermal thinning of black phosphorus

Abstract: Two-step rapid thermal thinning obtains monolayer black phosphorus with a high surface quality.

Cited by 43 publications

References 47 publications

Silver Nanoparticles Modified Graphitic Carbon Nitride Nanosheets as a Significant Bifunctional Material for Practical Applications

Silver Nanoparticles Modified Graphitic Carbon Nitride Nanosheets as a Significant Bifunctional Material for Practical Applications

Hierarchical porous carbon derived from carboxylated coal-tar pitch for electrical double-layer capacitors

Synthesis of Biomass‐Derived Carbon Induced by Cellular Respiration in Yeast for Supercapacitor Applications

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