Carbon-based catalysts: Synthesis and applications

Lázaro, M.J.; Ascaso, Sonia; Pérez-Rodríguez, S.; Calderón, Juan Carlos; Gálvez, María Elena; Nieto, María J.; Moliner, R.; Boyano, A.; Sebastián, David; Alegre, Cinthia; Calvillo, Laura; Celorrio, Verónica

doi:10.1016/j.crci.2015.06.006

Cited by 47 publications

(14 citation statements)

References 111 publications

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“…Nanomaterial-based enzyme mimetics (nanozymes) attract significant interest because of their low cost and high stability relative to those of natural enzymes, leading to their application in diverse fields including biosensing [10][11][12][13][14][15][16][17]. Among various nanozymes, carbon dots (CDs) are emerging materials owing to their unique properties [18][19][20][21]. Numerous researchers have investigated not only the enzymatic properties of CDs but also methods to improve these properties.…”

Section: Introductionmentioning

confidence: 99%

Highly Enhanced Enzymatic Activity of Mn-Induced Carbon Dots and Their Application as Colorimetric Sensor Probes

2021

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Nanomaterial-based enzyme mimetics (nanozymes) have attracted significant interest because of their lower cost and higher stability compared to natural enzymes. In this study, we focused on improving the enzymatic properties of metal induced N-doped carbon dots (N-CDs), which are nanozymes of interest, and their applications for sensory systems. For this purpose, Mn(acetate)2 was introduced during the synthetic step of N-doped carbon dots, and its influence on the enzymatic properties of Mn-induced N-CDs (Mn:N-CDs) was investigated. Their chemical structure was analyzed through infrared spectroscopy and X-ray photoelectron spectrometry; the results suggest that Mn ions lead to the variation in the population of chemical bonding in Mn:N-CDs, whereas these ions were not incorporated into N-CD frameworks. This structural change improved the enzymatic properties of Mn:N-CDs with respect to those of N-CDs when the color change of a 3,3′,5,5′-tetramethylbenzidine/H2O2 solution was examined in the presence of Mn:N-CDs and N-CDs. Based on this enhanced enzymatic property, a simple colorimetric system with Mn:N-CDs was used for the detection of γ-aminobutyric acid, which is an indicator of brain-related disease. Therefore, we believe that Mn:N-CDs will be an excellent enzymatic probe for the colorimetric sensor system.

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Section: Introductionmentioning

confidence: 99%

Highly Enhanced Enzymatic Activity of Mn-Induced Carbon Dots and Their Application as Colorimetric Sensor Probes

2021

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“…Carbon nanomaterials (CNM) like as: carbon fibers (CF), activated carbon (AC), nanotubes (CNTs), graphene (Gr), carbon quantum dots (CQDs), in view of their excellent physicochemical, sorption, mechanical and electrical properties, find wide application in various areas of human life [1][2][3][4][5]. So, for example, they are used in water purification [6][7][8][9][10], various energy-intensive systems [11,12], catalyst carriers [13][14][15], sensors [15][16][17][18][19], targeted delivery of drugs [20][21][22][23] and etc. Due to the wide range of applications for carbon nanomaterials, the development of economically viable and environmentally friendly methods for their production remains a topical issue.…”

Section: Introductionmentioning

confidence: 99%

Pitch-based carbon fibers: preparation and applications

Kaidar¹,

Смагулова²,

Imash³

et al. 2021

Горение и Плазмохимия

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Attention to carbon fiber (CF) conditioned by their unique physicochemical, mechanical and electrical properties, which makes them in demand in various fields of activity. Today there are several kinds of carbon fibers, most of which (about 90%) are made of polyacrylonitrile (PAN). Despite the fact that carbon fibers are produced from several types of different precursors, their widespread commercial use is limited by the high cost of the product. Has, many research and engineering group seek to reduce the cost of production by using cheap carbon raw materials. A likely solution to this problem is the exploitation of coal, petroleum and coal tar as an effective progenitor for CF production. This review discusses neoteric accomplishment in CF synthesis using various carbon pitches. The possibility of obtaining carbon fibers based on resin with the addition of PAN is presented, and the prospects for their use in energy storage systems and various reinforced composite materials are described in detail.

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“…It is well known that Ce is a good additive that can provide enough oxygen groups with the ability to release or store oxygen, thus improving the catalytic activity of SCR. In addition, over the last few years, the use of carbon-based catalysts have been widely studied due to their high surface area, porosity, ability to regenerate and be reused, and good support properties [17]. Several metal oxides were impregnated with carbon-based materials such as carbon nanotubes (CNTs), activated carbon (AC), activated carbon nanofibres (ACNFs), and graphene (GR).…”

Section: Introductionmentioning

confidence: 99%

“…In fact, choosing the best method for catalyst preparation is crucial in order to increase the interaction between the metal and support, and to obtain a desirable catalyst particle size. Lázaro et al [17] summarised the carbon-based catalysts for SCR at low temperature and compared it with commercial catalysts. A good example can be seen in Chuang et al [18], where a comparative study was made between the preparation of AC-supported Cu catalysts through impregnation, the polyol process, and microwave-heated polyol process using Cu(NO 3 )·3H 2 O as the copper precursor.…”

Section: Introductionmentioning

confidence: 99%

A review of carbon-based and non-carbon-based catalyst supports for the selective catalytic reduction of nitric oxide

Anthonysamy

Afandi

Khavarian

et al. 2018

Beilstein J. Nanotechnol.

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Various types of carbon-based and non-carbon-based catalyst supports for nitric oxide (NO) removal through selective catalytic reduction (SCR) with ammonia are examined in this review. A number of carbon-based materials, such as carbon nanotubes (CNTs), activated carbon (AC), and graphene (GR) and non-carbon-based materials, such as Zeolite Socony Mobil–5 (ZSM-5), TiO2, and Al2O3 supported materials, were identified as the most up-to-date and recently used catalysts for the removal of NO gas. The main focus of this review is the study of catalyst preparation methods, as this is highly correlated to the behaviour of NO removal. The general mechanisms involved in the system, the Langmuir–Hinshelwood or Eley–Riedeal mechanism, are also discussed. Characterisation analysis affecting the surface and chemical structure of the catalyst is also detailed in this work. Finally, a few major conclusions are drawn and future directions for work on the advancement of the SCR-NH3 catalyst are suggested.

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Carbon-based catalysts: Synthesis and applications

Cited by 47 publications

References 111 publications

Highly Enhanced Enzymatic Activity of Mn-Induced Carbon Dots and Their Application as Colorimetric Sensor Probes

Highly Enhanced Enzymatic Activity of Mn-Induced Carbon Dots and Their Application as Colorimetric Sensor Probes

Pitch-based carbon fibers: preparation and applications

A review of carbon-based and non-carbon-based catalyst supports for the selective catalytic reduction of nitric oxide

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