Graphene-based ordered framework with a diverse range of carbon polygons formed in zeolite nanochannels

Nishihara, Hirotomo; Fujimoto, Hiroyuki; Itoi, Hiroyuki; Nomura, Keita; Tanaka, Hideki; Miyahara, Minoru; Bonnaud, Patrick; Miura, Ryuji; Suzuki, Ai; Miyamoto, Naoto; Hatakeyama, Nozomu; Miyamoto, Akira; Ikeda, Kazutaka; Otomo, Toshiya; Kyotani, Takashi

doi:10.1016/j.carbon.2017.12.055

Cited by 86 publications

(79 citation statements)

References 46 publications

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“…Zeolite Y (FAU) was prepared from an aluminosilicate gel with a molar composition of 2.4 (TMA) 2 O: 0.024 Na 2 O: Al 2 O 3 : 3.4 SiO 2 : 370 H 2 O, using a slightly modified method FIGURE 1 | (A) Illustration of chemical vapor deposition on the FAU and (B) structural model of the ZTC embedded inside one supercage of FAU, obtained by CVD method on the micro-FAU (Nishihara et al, 2018). Note that the gray and red sticks represent the FAU framework, whereas the black sticks are for the carbons.…”

Section: Preparation Of Zeolite Ymentioning

confidence: 99%

“…Schwarzites can be formed by increasing the amount of carbon. It has been reported that a low amount of carbon was deposited in FAU (Ma et al, 2000(Ma et al, , 2002, which can lead to the carbon structure not fully resembling the pore morphology of FAU [one of which is shown in Figure 1B (Nishihara et al, 2018)]. During CVD, the carbon that was deposited inside the template could reduce the size of pore openings, preventing more carbon from infiltrating into the center of the template.…”

Section: Introductionmentioning

confidence: 99%

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A Simple “Nano-Templating” Method Using Zeolite Y Toward the Formation of Carbon Schwarzites

et al. 2019

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Schwarzites have a three-dimensional sp 2 carbon structure with negative Gaussian curvatures. They can be synthesized through the deposition of carbon by chemical vapor deposition on a zeolite template and may be formed by increasing the amount of carbon. In this research, the amount of carbon deposition was increased by shortening the length of the diffusion pathways of the template through the use of nano-sized zeolite Y (nano-FAU). It was found that significantly larger quantities of carbon could be deposited inside the pores of nano-FAU (40 nm), compared to the micro-sized zeolite Y (300 nm). It is thus confirmed that by shortening the diffusion pathways enables more carbon to infiltrate into the center of the template before the pore channels are blocked, which leads to larger carbon depositions. A low acetylene gas concentration (15% vol in N 2 ) and a prolonged period for chemical vapor deposition (6 h) is preferable for effectively loading carbon into the template. The obtained carbon replica exhibits the ordered structure derived from zeolite Y with an unprecedented 72 carbon atoms per supercage, of which a model with a structure similar to schwarzite was proposed.

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Section: Preparation Of Zeolite Ymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Simple “Nano-Templating” Method Using Zeolite Y Toward the Formation of Carbon Schwarzites

et al. 2019

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“…Meanwhile, the carbon framework of ZTC is developed only inside the zeolite pores under precisely controlled synthetic conditions, and such constrained zeolite spaces do not allow the stacking of carbon, thus making the ZTC structure a graphene network. 24,26 In addition, ZTC has a distinct peak at 6.3 , corresponding to the (111) plane of NaY zeolite (Fig. 1c).…”

Section: Resultsmentioning

confidence: 99%

“…Since the carbon structure of ZTC is developed inside the three-dimensionally (3D) ordered and mutually connected zeolite pores, the ZTC also has a 3D graphene-based network with a uniform pore size of 1.2 nm. 26 These three porous carbons were lled with 2,5-dichloro-1,4benzoquinone (DCBQ) in the gas phase. Unlike the conventional liquid phase adsorption method, the gas phase adsorption method enables the precise control of the porous carbon/ DCBQ weight ratio.…”

Section: Resultsmentioning

confidence: 99%

Study of the pore structure and size effects on the electrochemical capacitor behaviors of porous carbon/quinone derivative hybrids

et al. 2019

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“…39 The most well-understood ZTC structure is the variant derived from faujasite (FAU-ZTC) which features ~1.2 nm pores separated by curved graphenelike struts composed of disordered and irregular polycyclic carbon fragments. 45 While the atomic-level structure of FAU-ZTC is disordered, the pore-to-pore regularity (imparted by the zeolite template during synthesis) is very high, and the volumetric density of homogeneous micropores is higher than that of any other predominantly sp 2 -hybridized carbonbased material. Importantly, the three-dimensionally connected structure of ZTC is sufficiently conductive 46 to permit its use as a bare (capacitive-or pseudocapacitive-type) electrode material in electrochemical capacitors [47][48][49][50][51][52][53][54] (supercapacitors) and batteries 55 , even at very high current rates 48 and low temperatures 56 .…”

Section: Introductionmentioning

confidence: 99%

Zeolite-Templated Carbon as the Cathode for a High Energy Density Dual-Ion Battery

Dubey

Nussli

Piveteau

et al. 2019

ACS Appl. Mater. Interfaces

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Dual-ion batteries (DIBs) are electrochemical energy storage devices that operate by the simultaneous participation of two different ion species at the anode and the cathode and rely on the use of an electrolyte that can withstand the high operation potential of the cathode. Under such conditions at the cathode, issues associated with irreversible capacity loss and the formation of solid-electrolyte interphase (SEI) at the surface of highly porous electrode materials are far less significant than at lower potentials, permitting the exploration of high surface area, permanently porous framework materials as effective charge storage media. This concept is investigated herein by employing zeolite-templated carbon (ZTC) as the cathode in a dual-ion battery based on a potassium bis(fluorosulfonyl)imide (KFSI) electrolyte. Anion (FSI-) insertion within the pore network during electrochemical cycling is confirmed by NMR spectroscopy, and the maximum charge capacity is found to be proportional to surface area and micropore volume by comparison to other microporous carbon materials. Fullcells based on ZTC as the cathode exhibit both high specific energy (up to 176 Wh kg-1 , 79.8 Wh L-1) and high specific power (up to 3945 W kg-1 , 1095 W L-1), stable cycling performance over hundreds of cycles, and reversibility within the potential range of 2.65-4.7 V vs. K/K + .

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Graphene-based ordered framework with a diverse range of carbon polygons formed in zeolite nanochannels

Cited by 86 publications

References 46 publications

A Simple “Nano-Templating” Method Using Zeolite Y Toward the Formation of Carbon Schwarzites

A Simple “Nano-Templating” Method Using Zeolite Y Toward the Formation of Carbon Schwarzites

Study of the pore structure and size effects on the electrochemical capacitor behaviors of porous carbon/quinone derivative hybrids

Zeolite-Templated Carbon as the Cathode for a High Energy Density Dual-Ion Battery

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