Experimental investigation of hydrogen adsorption in doped silicon-carbide nanotubes

Barghi, Seyed Hamed; Tsotsis, Theodore T.; Sahimi, Muhammad

doi:10.1016/j.ijhydene.2015.10.091

Cited by 35 publications

(17 citation statements)

References 37 publications

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“…For internal doping of Co atoms, the nature of exo-hydrogenation was found to change from chemical to physical and depends on the nanotubes chirality [135]. Silicon carbide nanotubes had been synthesized by reaction between silica vapours and carbon nanotubes [137]. Purified nanotubes were doped with K and Ti.…”

Section: Biosensing Applications Of Doped-cntsmentioning

confidence: 99%

“…Hydrogen adsorption was gravimetrically measured with a magnetic suspension microbalance. Silicon carbide nanotubes doped with K demonstrated the promising properties for hydrogen adsorption and storage capacity was found to be 3 times higher compared to classic CNTs [137]. Li et al, have reported their study on the First-principle study of SO2 molecule adsorption on Ni-doped vacancy-defected single-walled (8, 0) CNTs [138].…”

Section: Biosensing Applications Of Doped-cntsmentioning

confidence: 99%

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Fundamentals and scopes of doped carbon nanotubes towards energy and biosensing applications

Muhulet

Miculescu

Voicu

et al. 2018

Materials Today Energy

175

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Since their first allusion, carbon nanotubes have attracted significant research interest, especially with respect to composite manufacturing as a filler material for enhancing their mechanical and electrical properties. Several methods have been developed for modifying the electrical properties of carbon nanotubes such as CNTs wall's carbon atoms substitution with other appropriate atoms including engineering of their outer surfaces by covalent and noncovalent molecules, such as CNTs channel filling and nano-chemical reactions therein. CNTs with tailored electrical conduction open large perspectives for their applicabilities in advanced technologies. Taking into consideration the innovative advantages of pure and hybrid CNTs, in this article we have comprehensively reviewed the latest state-of-art research developments in the direction of different synthesis strategies, structure-property relationships, and advanced applications towards energy storage, supercapacitors, electrodes, catalytic supports, as well as biosensing.

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Section: Biosensing Applications Of Doped-cntsmentioning

confidence: 99%

Section: Biosensing Applications Of Doped-cntsmentioning

confidence: 99%

Fundamentals and scopes of doped carbon nanotubes towards energy and biosensing applications

Muhulet

Miculescu

Voicu

et al. 2018

Materials Today Energy

175

View full text Add to dashboard Cite

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“…Thus, N and B were introduced, forming carbon nitrides, carbon boro-nitrides or even carbides, and their positive effect on hydrogen adsorption was demonstrated [11e15]. The favourable effect of silicon carbide (SiC) on hydrogen adsorption was theoretically [16] and experimentally [17,18] investigated. However, the synthesis of SiC remains uneasy due to the high temperatures required, typically in the range 1600e1900 K [19].…”

Section: Introductionmentioning

confidence: 99%

“…However, the synthesis of SiC remains uneasy due to the high temperatures required, typically in the range 1600e1900 K [19]. In addition, the interactions between hydrogen and SiC were investigated in carbon-SiC nanotubes [17,18] having low surface areas (i.e., below 100 m 2 g À1 , according to the BET method based on N 2 adsorption at 77 K). Despite the fact that these studies evidenced the possibility of using SiC-doped materials for hydrogen storage, the low surface areas of those materials limited the hydrogen uptake.…”

Section: Introductionmentioning

confidence: 99%

Rice straw-based activated carbons doped with SiC for enhanced hydrogen adsorption

Schaefer

Muniz

Izquierdo

et al. 2017

International Journal of Hydrogen Energy

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Activated carbons (ACs) based on rice straw (RS) were synthesised using potassium carbonate as activating agent at three different K 2 CO 3 /RS weight ratios. Morphological, chemical, structural as well as textural characterisations were carried out in order to establish relationships between the physicochemical properties of the materials and their hydrogen adsorption capacities. The ACs contained potassium and silicon as the main impurities. Si was identified by XRD in both phases of silicon dioxide and silicon carbide. The presence of SiC was particularly surprising due to the rather low activation temperature, much lower than what is usually required for SiC synthesis. ACs exhibited well-developed surface areas (approximatively 2000e2100 m 2 g À1) and high micropore volumes, making them suitable for hydrogen storage applications. RS-based ACs showed higher hydrogen storage capacities than those previously obtained with KOH-activated sucrose. The latter exhibited hydrogen uptakes (excess, 10 MPa, 298 K) up to 0.55 wt. %, whereas 0.65 wt. % was measured for RSbased ACs in the same conditions. The higher hydrogen capacities and isosteric heats of adsorption found here were attributed to the presence of SiC.

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“…In addition to its use in the electronic and computer industries, SiC has also been used for fabricating nanoporous membranes 39,40 and nanotubes. [41][42][43] But what has motivated us to study sliding friction between two SiC surfaces is its applications in high performance disc brakes, cutting tools, and blades in gas turbines and jet engines, as well as fabrication of nanoporous materials explained below. Consider, for example, the development of high performance brakes, particularly for aircrafts.…”

Section: Introductionmentioning

confidence: 99%

Sliding friction between two silicon-carbide surfaces

Piroozan

Naserifar

Sahimi

2019

Journal of Applied Physics

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Experimental investigation of hydrogen adsorption in doped silicon-carbide nanotubes

Cited by 35 publications

References 37 publications

Fundamentals and scopes of doped carbon nanotubes towards energy and biosensing applications

Fundamentals and scopes of doped carbon nanotubes towards energy and biosensing applications

Rice straw-based activated carbons doped with SiC for enhanced hydrogen adsorption

Sliding friction between two silicon-carbide surfaces

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