Raman investigation on carbonization process of metal-organic frameworks

Gong, Yu Ting; Li, Bing Han; Pei, Tsung; Lin, Chia Her; Lee, Szetsen

doi:10.1002/jrs.4952

Cited by 27 publications

(24 citation statements)

References 43 publications

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“…D band intensity shows the existence of defects, edge effects and dangling sp 2 carbon bonds that break the symmetry and disorder-induced effects for any type of carbon. The appearance of the G peak is due to the in-plane stretching motion between sp 2 carbon atoms and A 2 band, an indication of the existence of amorphous carbon [ 38 ]. The order of intensity ratio ( I D / I G ratio) is CuNPs/NGO (600) < CuNPs/NGO (700) < CuNPs/NGO (800) < CuNPs/NGO (900).…”

Section: Resultsmentioning

confidence: 99%

Copper Nanoparticle and Nitrogen Doped Graphite Oxide Based Biosensor for the Sensitive Determination of Glucose

et al. 2018

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Copper nanoparticles with the diameter of 50 ± 20 nm decorated nitrogen doped graphite oxide (NGO) have been prepared through a simple single step carbonization method using copper metal-organic framework (MOF), [Cu2(BDC)2(DABCO)] (where BDC is 1,4-benzenedicarboxylate, and DABCO is 1,4-Diazabicyclo[2.2.2]octane) as precursor. The surface morphology, porosity, surface area and elemental composition of CuNPs/NGO were characterized by various techniques. The as-synthesized CuNPs/NGO nanomaterials were coated on commercially available disposable screen-printed carbon electrode for the sensitive determination of glucose. We find that the modified electrode can detect glucose between 1 μM and 1803 μM (linear range) with good sensitivity (2500 μA mM−1 cm−2). Our glucose sensor also possesses low limits of detection (0.44 μM) towards glucose determination. The highly selective nature of the fabricated electrode was clearly visible from the selectivity studies. The practicability of CuNPs/NGO modified electrode has been validated in the human serum samples. The storage stability along with better repeatability and reproducibility results additionally substantiate the superior electrocatalytic activity of our constructed sensor towards glucose.

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Section: Resultsmentioning

confidence: 99%

Copper Nanoparticle and Nitrogen Doped Graphite Oxide Based Biosensor for the Sensitive Determination of Glucose

et al. 2018

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“…Aimed at that, some mechanistic hints have been reported, the pyrolysis of MOFs firstly starting with water molecules desorption, disintegration of the framework by releasing CO x , aromatics and hydrocarbons until metal oxide formation. In this context, real-time monitoring by using Raman spectroscopy should provide valuable information concerning the birth and evolution of the porous structure of these materials [164].…”

Section: Discussionmentioning

confidence: 99%

New and Advanced Porous Carbon Materials in Fine Chemical Synthesis. Emerging Precursors of Porous Carbons

et al. 2019

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The efficiency of porous carbons in fine chemical synthesis, among other application fields, has been demonstrated since both the porous structure and chemical surface provide the appropriated chemical environment favoring a great variety of relevant chemical transformations. In recent years, metal organic frameworks (MOFs) and covalent organic frameworks (COFs) have emerged as interesting opportunities in the preparation of porous carbons with improved physico-chemical properties. Direct calcination of MOFs or COFs, in the presence or not of others carbon or heteroatom sources, could be considered an easy and practical approach for the synthesis of highly dispersed heteroatom-doped porous carbons but also new porous carbons in which single atoms of metallic species are present, showing a great development of the porosity; both characteristics of supreme importance for catalytic applications. The goal of this review is to provide an overview of the traditional methodologies for the synthesis of new porous carbon structures together with emerging ones that use MOFs or COFs as carbon precursors. As mentioned below, the catalytic application in fine chemical synthesis of these kinds of materials is at present barely explored, but probably will expand in the near future.

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“…Chemical compositions of NPC were studied by ICP-MS and elemental analysis ( Figure S7 Further, synthesized NPC materials were characterized by Raman spectroscopy for the degree of graphitization. The spectrum analyzed range between 1200 cm −1 to 1700 cm −1 bands were fitted with the spectra, 1180 cm −1 (A1 band), 1340 cm −1 (D band), and 1600 cm −1 (G band) [42]. Figure S6 shows significantly broadened D and G bands.…”

Section: Structure Morphology and Composition Of Npc Materialsmentioning

confidence: 99%

Carbonization and Preparation of Nitrogen-Doped Porous Carbon Materials from Zn-MOF and Its Applications

et al. 2020

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Nitrogen-doped porous carbon (NPC) materials were successfully synthesized via a Zn-containing metal-organic framework (Zn-MOF). The resulting NPC materials are characterized using various physicochemical techniques which indicated that the NPC materials obtained at different carbonization temperatures exhibited different properties. Pristine MOF morphology and pore size are retained after carbonization at particular temperatures (600 °C-NPC600 and 800 °C-NPC800). NPC800 material shows an excellent surface area 1192 m2/g, total pore volume 0.92 cm3/g and displays a higher CO2 uptake 4.71 mmol/g at 273 k and 1 bar. Furthermore, NPC600 material displays good electrochemical sensing towards H2O2. Under optimized conditions, our sensor exhibited a wide linearity range between 100 µM and 10 mM with a detection limit of 27.5 µM.

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Raman investigation on carbonization process of metal-organic frameworks

Cited by 27 publications

References 43 publications

Copper Nanoparticle and Nitrogen Doped Graphite Oxide Based Biosensor for the Sensitive Determination of Glucose

Copper Nanoparticle and Nitrogen Doped Graphite Oxide Based Biosensor for the Sensitive Determination of Glucose

New and Advanced Porous Carbon Materials in Fine Chemical Synthesis. Emerging Precursors of Porous Carbons

Carbonization and Preparation of Nitrogen-Doped Porous Carbon Materials from Zn-MOF and Its Applications

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