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Aktaş, Nahit; Şahiner, Nurettin; Kantoğlu, Ömer; Salih, Bekir; Tanyolaç, Abdurrahman

doi:10.1023/a:1024639231900

Cited by 90 publications

(48 citation statements)

References 13 publications

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“…[30] Twob ands were observed at ñ = 1190 and 1400 cm À1 and were assigned to the CÀOa nd CÀNv ibrations, respectively. [33] Additionally,t he spectra showed characteristic absorption bands at ñ = 1260 and 1695 cm À1 ,w hich were ascribed predominantly to the amido bonds;t his indicated that ÀCOOH reacted with ÀNHÀ to form amido bonds. [33] Additionally,t he spectra showed characteristic absorption bands at ñ = 1260 and 1695 cm À1 ,w hich were ascribed predominantly to the amido bonds;t his indicated that ÀCOOH reacted with ÀNHÀ to form amido bonds.…”

Section: Resultsmentioning

confidence: 95%

o‐Benzenediol‐Functionalized Carbon Nanosheets as Low Self‐Discharge Aqueous Supercapacitors

Xiong

Lee

et al. 2018

ChemSusChem

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Widening the voltage window is often proposed as a way to increase the energy density of aqueous supercapacitors. However, attempting to operate beyond the aqueous supercapacitor stability region can undermine the supercapacitor reliability due to pronounced electrolyte decomposition, which can lead to a significant self-discharge process. To minimize this challenge, charge injection by grafting o-benzenediol onto the carbon electrode is proposed through a simple electrochemical cycling technique. Due to charge injection from o-benzenediol into the carbon electrode, the equilibrium potential of the individual electrode can be reduced. In addition, due to its small molecular size, charge distribution, which is commonly faced by bulk pseudocapacitive materials, is also avoided. The assembled supercapacitor based on the o-benzenediol-grafted carbon demonstrated a maximum energy density of 24 Wh kg and a maximum power density of 69 kW kg , with a retention of 89 % after 10 000 cycles at 10 A g . A low self-discharge of about 4 h was recorded; this could be attributed to the low driving force arising from the lower equilibrium potential. Thus, the proposed technique may provide insight towards the tuning of the equilibrium potential to attain reliable, high-performing supercapacitors with a low self-discharge process.

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Section: Resultsmentioning

confidence: 95%

o‐Benzenediol‐Functionalized Carbon Nanosheets as Low Self‐Discharge Aqueous Supercapacitors

Xiong

Lee

et al. 2018

ChemSusChem

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“…The mechanism of catechol polymerization by laccase has been proposed by others and defines repeating units of oxyphenylene after the reaction. To confirm the PEG role as a template, free in solution or chemically bond to laccase, we estimated the amount of oxyphenylene units by measuring the total content of free OH in all the mixtures after the reaction (Table ).…”

Section: Resultsmentioning

confidence: 99%

PEGylation Greatly Enhances Laccase Polymerase Activity

Noro

Loureiro

et al. 2017

ChemCatChem

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Laccase catalyzes the oxidation and polymerization of phenolic compounds in the presence of oxygen. Herein, we report for the first time that a previous PEGylation of laccase enhances the polymerase activity 3‐fold compared with the reaction of the native enzyme, as confirmed by UV/Vis spectroscopy. The polymerization of catechol increased only 1.5‐fold if poly(ethylene glycol) (PEG) was added to the medium reaction. Molecular‐dynamics simulations suggest the formation of a miscible complex of polycatechol and PEG, which is responsible to push the reaction forward. In a negative control experiment set, all catalysts were entrapped inside polyacrylamide gels and here the native laccase showed a relatively higher activity. These results suggest that the mobility of PEG is a key feature for the enhancement of the reaction.

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“…As we know, there have been many reports on the mid-infrared (MIR) [1][2][3][4][5] and Raman spectra [5][6][7][8][9] of benzene-1,2-diol, and terahertz (THz) spectral analysis is an effective way to investigate materials [10][11][12][13]. Recently, THz spectra in terms of experiment and calculation have been demonstrated [14].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, THz spectra in terms of experiment and calculation have been demonstrated [14]. But most of the MIR spectral investigations were discussed only based on the experimental results [3,4], and some calculations were still performed based on semi-empirical and molecular orbital method [2,5]. For THz spectral investigation, the spectral reproduction in Ref.…”

Section: Introductionmentioning

confidence: 99%