Polymer-templated mesoporous carbons synthesized in the presence of nickel nanoparticles, nickel oxide nanoparticles, and nickel nitrate

Choma, J.; Jedynak, Katarzyna; Marszewski, Michal; Jaroniec, Mietek

doi:10.1016/j.apsusc.2011.12.022

Cited by 25 publications

(13 citation statements)

References 23 publications

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“…The recently reported true-or semi-liquid-crystalline phase-templating method can offer an effective route for fabricating mesostructure. Various types of organic reagents, such as P123, F127 and PEG6000, were effective for the formation of mesopores [9,10]. However, these organic templates are expensive and poorly soluble in water, which necessitates the removal of these templates by calcinations or by extraction with organic solvents [11].…”

Section: Introductionmentioning

confidence: 99%

The characterizations and electrochemical properties of lignosulfonate templates based mesoporous NiO

Chen¹,

Yao²,

Ping³

et al. 2013

AIP Conference Proceedings

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Abstract. Environmentally recycled liginsulfonate were successfully employed for the facile synthesis of mesoporous NiO materials. The XRD, SEM, TEM and N 2 adsorption-desorption analysis were performed for characterizing the structure and surface properties of resultant NiO. The proximate globular structure of lignin macromolecules played an templating role in the formation of mesoporous framework of NiO. The fabricated NiO nanostructures had high specific surface area (193.8 m 2 /g), large pore volume (0.42 cm 3 /g), and narrow pore size distribution making them ideal candidates for supercapacitor applications. CV, ESI and galvanostatic constant-current charge/discharge tests showed that the fabricated mesoporous NiO had high specific capacitance (342 F·g −1 ) and good circulatory stability. Furthermore, the mesoporous NiO showed a good rate capability, which is due to that the ordered mesopores did not limit the ion motion within the pores. The results suggest that resultant NiO mesostructures are a promising supercapacitor electrode material.

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Section: Introductionmentioning

confidence: 99%

The characterizations and electrochemical properties of lignosulfonate templates based mesoporous NiO

Chen¹,

Yao²,

Ping³

et al. 2013

AIP Conference Proceedings

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“…The temperature program was as follows: first, the sample was heated to 180 C at 2 C/min rate and held for 5 h. Next, temperature was elevated from 180 C to 400 C at 2 C/min rate and further from 400 C to 850 C at 5 C/min rate. The sample was kept at 850 C for 2 h. The detailed STA synthesis procedure is described in literature works (Choma et al, 2012(Choma et al, , 2008. The simplified diagram of STA synthesis is presented in Figure 1 (Jedynak et al, 2013).…”

Section: Synthesis Of Ordered Mesoporous Carbon Materialsmentioning

confidence: 99%

Investigation of mesoporous carbon materials by magnetic solid phase extraction of selected phthalates from water samples

Wideł

Jedynak

Witkiewicz

et al. 2016

Adsorption Science & Technology

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In the present work ordered mesoporous carbon materials soft templating-acidic (STA) were applied as adsorbents in magnetic solid phase extraction technique for isolation of selected phthalates from water samples. STA materials were obtained by soft-templating method in acidic environment. Nickel nanoparticles were added on the STA synthesis stage, thus the obtained material acquired magnetic properties. The analysis of phthalates after the extraction was carried out by gas chromatography-mass spectrometry method. Fast and easy procedure was elaborated, obtaining recoveries close to 90% for some phthalates.

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“…10 % weight) and solutions of nickel nitrate(V) or zinc nitrate(V) (obtained pure carbon was impregnated after synthesis using 10% weight aqueous solutions of salts in terms of Ni and Zn). Adsorbents were obtained according to recipes presented in works [18,19].…”

Section: Adsorbents and Adsorbatesmentioning

confidence: 99%

Adsorption of Methylene Blue and Malachite Green from Aqueous Solutions on Mesoporous Carbon-Nickel and Carbon-Zinc Composites

Jedynak¹

2017

Eng. Prot. Environ.

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Adsorpcja błękitu metylenowego i zieleni malachitowej z roztworów wodnych na mezoporowatych kompozytach węglowo-niklowych i węglowo-cynkowychIn this work adsorption of methylene blue and malachite green on mesoporous carbon-nickel and carbon-zinc composites (ST-A-Ni, ST-A-Ni(NO3)2-imp and ST-A-Zn, ST-A-Zn(NO3)2-imp) were investigated. These materials were obtained by the soft-templating method in presence of various precursors containing nickel or zinc. Nanoparticles of nickel or zinc and solutions of nickel nitrate(V) or zinc nitrate(V) were used as a source of nickel and zinc.Low-temperature nitrogen adsorption isotherms were determined for investigated materials and they were used for porous structure parameters calculation. . Participation of mesoporosity in the total porosity of carbon composites is from approx. 44% to approx. 78%. This means that studied carbons are in fact mesoporous materials, with considerable domination of mesoporosity over the microporosity. The exception is composite ST-A-Zn were the microporosity value is a little bit higher than mesoporosity. The mesopores dimension for the maximum of the distribution function (in the range of mesopores) was determined by Kruk-Jaroniec-Sayari (KJS) method. This dimension was approx. 7 nm for all investigated adsorbents.SEM photos confirmed the presence of ordered mesopores, particularly in materials obtained as a result of zinc nitrate impregnation. Also the presence of nickel nanoparticles, with different dimensions and shapes (ST-A-Ni), was confirmed by SEM photos.The concentrations of adsorbates, before and after adsorption, were determined by spectrophotometric method. Adsorption experiments were carried out at 25°C temperature. The adsorption equilibrium for investigated in this work mesoporous compositions (carbon--metal-composite -colorant solution) was settled after 90 minutes (ST-A-Ni(NO3)2-imp-MB and ST-A-Zn(NO3)2-imp-MB), after 120 minutes (ST-A-Ni-MB), after 240 minutes (ST-A-Ni-MG) and for the rest of investigated compositions after 360 minutes. The studies of adsorption process velocity showed that in most cases adsorption kinetics proceeded according to pseudo II-order reaction model. Only in one case according to pseudo I-order reaction model: for ST-A-Zn (malachite green). Obtained adsorption isotherms were substituted into the Langmuir equation and Freundlich equation. Adsorption process of methylene blue and malachite green on all studied carbon-metal composites proceed in accordance to adsorption model described by Langmuir equation. Adsorption ability of studied mesoporous carbon materials is significantly higher for methylene blue than for malachite green. The best adsorbent for methylene blue was carbon ST-A-Zn(NO3)2-imp (qm = 104.17 mg/g), the worst K. Jedynak 44 adsorbent was carbon ST-A-Zn (qm = 6.65 mg/g). In the case of malachite green the best adsorbent was carbon ST-A-Ni (qm = 58.82 mg/g) and the worst adsorbent was carbon ST-A-Zn (qm = 4.25 mg/g). On the basis of K constant from Langmuir equation the value of free ent...

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Polymer-templated mesoporous carbons synthesized in the presence of nickel nanoparticles, nickel oxide nanoparticles, and nickel nitrate

Cited by 25 publications

References 23 publications

The characterizations and electrochemical properties of lignosulfonate templates based mesoporous NiO

The characterizations and electrochemical properties of lignosulfonate templates based mesoporous NiO

Investigation of mesoporous carbon materials by magnetic solid phase extraction of selected phthalates from water samples

Adsorption of Methylene Blue and Malachite Green from Aqueous Solutions on Mesoporous Carbon-Nickel and Carbon-Zinc Composites

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