Application of a square wave potentiometry technique for electroreductive sulfur removal from a thiophenic model fuel

Recent Advances and Challenges in Developing Technological Methods Assisting Oxidative Desulfurization of Liquid Fuels: A Review

“…The ECODS of thiophene-containing solutions occurs in two steps: the chemical adsorption of Th molecules from the bulk solution onto the electrode surface, followed by oxidation of these molecules . The ECODS process can be performed statically or dynamically. , The static approach uses a fixed potential or draws a fixed current, whereas the dynamic technique adjusts potential changes over time. Various types of electrolytes, such as acids (H 2 SO 4 /HClO 4 and acetic acid), bases (NaOH ,, and KOH), salts (NaCl and cerium nitrate Ce­(NO 3 ) 3 , ), acid/salt (H 2 SO 4 /chromium sulfate hexahydrate (Cr 2 (SO 4 ) 3 ·6H 2 O)), acetonitrile/water, and ionic liquids, have been used in the ECODS process.…”

“…The ECODS process can be performed statically or dynamically. , The static approach uses a fixed potential or draws a fixed current, whereas the dynamic technique adjusts potential changes over time. Various types of electrolytes, such as acids (H 2 SO 4 /HClO 4 and acetic acid), bases (NaOH ,, and KOH), salts (NaCl and cerium nitrate Ce­(NO 3 ) 3 , ), acid/salt (H 2 SO 4 /chromium sulfate hexahydrate (Cr 2 (SO 4 ) 3 ·6H 2 O)), acetonitrile/water, and ionic liquids, have been used in the ECODS process. The anode catalysts, such as CeO 2 /activated carbon, β-PbO 2 /activated carbon, β-PbO 2 /Ti, AAO-CeO 2 , boron-doped diamond (BDD), graphite, , iron, copper, platinum, and glassy carbon electrodes modified with gold-polyaniline (Au-PANI), and cathode catalysts, such as copper pillar, platinum, graphite, , nickel, stainless steel, etc., have been applied in this process.…”

“…162 The ECODS process can be performed statically 163 or dynamically. 161,164 The static approach uses a fixed potential or draws a fixed current, whereas the dynamic technique adjusts potential changes over time. Various types of electrolytes, such as acids (H 2 SO 4 /HClO 4 161 and acetic acid 165 ), bases (NaOH 163,165,166 and KOH 164 ), salts (NaCl 159 and cerium nitrate Ce-(NO 3 ) 3 158,167 ), acid/salt (H 2 SO 4 /chromium sulfate hexahydrate (Cr 2 (SO 4 ) 3 •6H 2 O) 168 ), acetonitrile/water, 169 and ionic liquids, 170 have been used in the ECODS process.…”

Hydrodehalogenation of Polychloromethanes on Silver‐Based Gas Diffusion Electrodes

“…[30][31][32] However, their potential scale-up is still rather difficult. Besides, electroreductive processes have gained a large scientific attention due to either their potentiality in chemical recovering/recycling or in the value-added substance productions, [33][34][35][36][37] in particular when halocompounds in wastewater streams have to be treated. [38,39] Indeed, on one hand, the cathodic reaction can be used to produce energy as molecular hydrogen, while performing the solution decontamination via the anodic process, on the other it can concomitantly play a pivotal role in the degradation of organics .…”