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수은음극상에서 2 , 3 - Butanediol , Pinacol 및 Ethylene glycol 의 흡착거동
박승조,남종우 한국화학공학회 1984 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.22 No.3
여러 농도의 pinacol과 30mM의 2, 3 butanediol, ethylene glycol의 전극-전해질 계면에서의 미분 용량을 1.0M 황산과 sodium sulfate 용액상에서 적하수은 전극(D.M.E.)으로 측정하였다. 산용액과 중성용액에서 계면미분용량-전위곡선은 Frumkin-Damaskin 등은 흡착식으로 검토하였다. a>0 일때 pinacol. 30mM 의 2,3-butanediol 및 ethylene glycol의 경우 D.M.E의 표면피복률과 수은에서 최대 표면 과잉량을 I.O M 황산과 sodium sulfate 용액상에서 D.M.E. 측정치로부터 계산하였다. The differential capacitance at the electrode electrolyte interface were measured with dropping mercury electrode (D.M.E.) in 1.0 M sulfuric acid and sodium sulfate solutions with various concentration of pinacol and 30 mM of of 2,3-butanediol, ethylene glycol. In acidic and neutral solutions, the differential capacitance vs. potential curves were treated Frumkin-Damaskin adsorption isotherm. Then we calculate coverage of D.M.E. and maximum surface excess on mercury at a >0, obtained from D.M.E. measurement in solution 1.0 M sulfuric acid and sodium sulfate with various concentration of pinacol and 30 mM of 23-butanediol and ethylene glycol.
백금 및 이산화납 양극에 의한 Pinacol 수용액의 양극반응(1)
박승조,남종우,손조환 한국화학공학회 1984 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.22 No.5
백금 및 이산화납전극을 사용하여 각종 pH에서 pinacol의 양극반응을 정전위전해법으로 연구한 결과 양극반응은 pH의존적이었다. 산성역에서는 이산화납 전극을 사용하였을 때 가장 좋은 수율로 acetone이 얻어졌으며 또한 c-c결합절단반응에 관하여 Tafel slape을 구해서 이 반응메카니즘을 검토한 결과 pinacol이 acetone으로 산화되는 반응과정은 Electron-Electron(E-E)반응임을 알수 있었다. Using platinum and lead dioxide electrode, anodic process of pinacol have been investigated with potentiostatic method in various pH. Experimental results indicate that yield of acetone from pinacol is good in acidic region and electrolytic products is pH dependent. In this paper, we studied that Tafel slope for the oxidation of 0.5 M pinacol solution buffered to pH 1.2 in order to investigate the mechanism of C-C bond cleavage reaction of pinacol. Results of Tafel slope indicate that electrochemical oxidation of pinacol is electron-electron (E-E) mechanism.
박승조,남정광,김정섭,박정훈 東亞大學校 附設 環境問題硏究所 2007 硏究報告 Vol.29 No.1
Phenol removal efficiency was 65-70 percent according to the results of phenol adsorption experiment loaded with activated carbon derived from leather waste by chemical activation with K₂CO₃ [ACLW], but phenol removal efficiency was 100 percent added with commercia1 activated carbon [AC]. Phenol adsorption experiment reacted with the phenol solution containing 1.25, 2.50, 5.00, 6.25 g/L during 90 minutes. However removal efficiency of Blue 79 was 100 percent loaded with waste by chemical activation with K₂CO₃ [ACLW] and removal efficiency was poor added with commercial activated carbon [AC]. Concentration of Blue79 [2-Bromo- 4,6, dinitroaniline-3-Bis-(2-acetoxyethylene) amino-p-aceto pheneridide] was 40 mg/L.