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- 저자 : Suhail Mubarak (검색결과 2 건)
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Suhail Mubarak,DURAISAMI DHAMODHAR-AN,Hun-Soo Byun,Deepak K. Pattanayak,S.B. Arya 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.113 No.-
Global warming and adverse climate change, which have been intensified by a strident increase in carbondioxide (CO2) emissions, have necessitated the development of alternative techniques to reduce the disproportionateconcentration of CO2 in the atmosphere. The photoelectrochemical reduction of CO2 is atechnique of lowering the energy required to convert greenhouse gases into useful end products. Herein, we have manufactured an innovative, cost-effective silver (Ag) decorated anatase TiO2 (TOAgx;‘x’ stands for different concentration of Ag) nanoparticles which created on the 3D nanoporousstructured surface of a thin titanium foil (Ti-foil) by the assist of chemical treatment with hydrogen peroxide(H2O2) and different concentrations (1, 5, 10, 20 mM) of silver nitrate (AgNO3) solution and followedby calcination at 500 C. As-prepared samples were analyzed by several characterizationtechniques such as XRD, XPS, TEM and Raman spectroscopy. Among various samples (TO, TO-Ag1, TOAg5,TO-Ag20), the TO-Ag10 sample were exposed a supreme photocurrent density of 83.2 lA/cm2(86.1% higher than TO sample which is untreated with AgNO3 solution). Because of its high photocurrentdensity, the sample TO-Ag10 were selected as the electrode material for photoelectrochemical CO2 reductionreaction and a lowest reduction onset potential (1.018 V) was observed on linear sweep voltammetryanalysis in the presence of light with Ag/AgCl reference electrode. 1H NMR analysis of the productsolution exposed the production of formic acid as a single product of CO2 reduction reaction after thechronoamperometric electrolysis were carried out more than 6 h. The maximum faradaic efficiency(73%) and formic acid yield (193 lmol cm2 h1) were found at an applied potential of 1.2 V(vs. Ag/AgCl reference electrode) for TO-Ag10 photocathode.
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A review on graphene oxide effect in energy storage devices
DURAISAMI DHAMODHAR-AN,Pradnya Prabhakar Ghoderao,Veeman Dhinakaran,Suhail Mubarak,Nidhin Divakaran,Hun-Soo Byun 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.106 No.-
This article contributes a broad analysis of the latest improvement on energy storage operations usingsingle layer surface modified graphene oxide (GO). GO, a thin structure of graphite oxide, is a modifiedgraphene, holding several oxygen-casing functional groups. This provides GO with numerous distinctivefeatures for multipurpose applications in capacitors, fuel cells and batteries. Precise applications are distinguishedprimarily comprising use in electrodes as the dynamic substantial’s to augment the recital oras substrates to discriminate the configurations, in solid-state solution and membranes techniques toadvance the ionic attraction and other behaviors, and in internal structure layers to guard the currentcollectors, membranes or electrodes. Additionally, the problems, difficulties and looming overlooks areconferred in the article for promising promotes research development of GO applications.
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