Simultaneous Voltammetry Determination of Dihydroxybenzene Isomers by Nanogold Modified Electrode
A convenient chemistry deposition technique to organize nanogold/glassy carbon changed conductor (nano‐Au/GCE) is adopted. In 0.1 mol/L HAc‐NaAc solution (pH four.61), the nano‐Au/GCE shows a wonderful electrocatalytical behavior for the oxidoreduction of dihydroxybenzene. A simple, speedy and extremely selective voltammetry for cooccurring determination of dihydroxybenzene isomers, hydroquinone, catechol, and phenol, is developed victimization the nano‐Au/GCE. This technique has been applied to the direct determination of the 3 dihydroxybenzene isomers in artificial effluent. [1]
Solubility of dihydroxybenzene isomers in supercritical carbon dioxide
The equilibrium solubilities of dihydroxybenzene isomers pyrocatechol, phenol and hydroquinone are measured in critical dioxide employing a easy static methodology. The measurements were performed within the pressure vary from one hundred twenty to four hundred atm at temperatures thirty five, 45, fifty five and 65°C for pyrocatechol and phenol and within the pressure vary from one hundred twenty to two hundred atm at temperature 35°C for hydroquinone. The solubility of the isomers in critical CO2 was found to vary within the order pyrocatechol>resorcinol≫hydroquinone. The experimental information were related to by use of the density primarily based model projected by Chrastil. [2]
An asymmetric supercapacitor with anthraquinone and dihydroxybenzene modified carbon fabric electrodes
An uneven chemical science condenser with AN increased energy density has been made by victimization carbon cloth conductors changed with complementary functionality; anthraquinone for the negative electrode and one,2-dihydroxybenezene for the positive conductor. Cyclic voltammetry and constant current discharging were accustomed appraise the performance of a supercapacitor with one M H2SO4 solution and a Nafion centrifuge. Energy densities were found to be double the values obtained for a cruciform device with 2 unqualified carbon cloth electrodes. [3]
Self-template synthesis of biomass-derived 3D hierarchical N-doped porous carbon for simultaneous determination of dihydroxybenzene isomers
Nitrogen doped stratified porous carbon materials (HPCs) was achieved by the no-hit carbonisation, victimisation pig respiratory organ as biomass precursor. Three-dimensional HPCs grooved with sheets and contours were synergistically transmissible from original pig respiratory organ. Such structure provided an outsized specific expanse (958.5 g−1 m2) and wealthy porous, effectively supported an outsized variety of electro-active species, and greatly increased the mass and negatron transfer. High graphitization degree of HPCs resulted in sensible electrical physical phenomenon. moreover, the various tendency between gas and carbon atoms in HPCs might have an effect on the negatron cloud distribution, polarity so the chemical science oxidisation mechanics of dihydroxybenzene isomers. [4]
Preparation and Characterization of Methacrylic Acid-based Molecularly Imprinted Polymer as a New Adsorbent for Recognition of 1,4-dihydroxybenzene
This article presents the primary example of consecutive reportable guide removal procedure in molecularly imprinted polymers (MIPs) victimisation UV-spectrophotometer. chemical change was achieved in an exceedingly glass tube containing one,4-dihydroxybenzene (DHB) guide molecule, acid (MAA), glycol dimethacrylate (EGDMA), azobisisobutyronitrile (AIBN). The chemical compound matrix obtained was ground and also the guide molecule was aloof from chemical compound particles by activity with methanol/acetic acid, that leaves cavities within the chemical compound material. The chemical compound material each before and once activity was characterised by Fourier rework infrared qualitative analysis, Scanning microscopy, diffraction, and Brunauer-Emmett-Teller model. [5]
Reference
[1] Han, L. and Zhang, X., 2009. Simultaneous voltammetry determination of dihydroxybenzene isomers by nanogold modified electrode. Electroanalysis: An International Journal Devoted to Fundamental and Practical Aspects of Electroanalysis, 21(2), pp.124-129. (Web Link)
[2] Yamini, Y., Fat’hi, M.R., Alizadeh, N. and Shamsipur, M., 1998. Solubility of dihydroxybenzene isomers in supercritical carbon dioxide. Fluid Phase Equilibria, 152(2), pp.299-305. (Web Link)
[3] Algharaibeh, Z. and Pickup, P.G., 2011. An asymmetric supercapacitor with anthraquinone and dihydroxybenzene modified carbon fabric electrodes. Electrochemistry Communications, 13(2), pp.147-149. (Web Link)
[4] Self-template synthesis of biomass-derived 3D hierarchical N-doped porous carbon for simultaneous determination of dihydroxybenzene isomers
Dejian Chen, Haifeng Zhou, Hao Li, Jie Chen, Shunxing Li & Fengying Zheng
Scientific Reportsvolume 7, Article number: 14985 (2017) (Web Link)
[5] N. Awokoya, K., O. Oninla, V., T. Adeleke, I. and O. Babalola, J. (2018) “Preparation and Characterization of Methacrylic Acid-based Molecularly Imprinted Polymer as a New Adsorbent for Recognition of 1,4-dihydroxybenzene”, International Research Journal of Pure and Applied Chemistry, 16(2), pp. 1-11. doi: 10.9734/IRJPAC/2018/38586. (Web Link)