Cu ^{2+}는 catalytic transfer oxidant로 작용하여 coupled oxidation reaction 과정을 거쳐 benzoin을 benzil로 산화시켰다. ... Recycling of copper ion in the benzoin oxidation 이러한 반응에서 전형적인 산화제로는 KMnO _{4}^{+} OH ^{-}, HNO _{3}, ... 이처럼 질산암모늄에 의해 Cupric acetate가 재생성되므로 반응의 효율성이 높아지게 된다. cupric salt는 mild한 oxidant이기 때문에 diketone을 산화시키지는
conjugated reaction)으로 색소원(色素源; carbon source)을 발색시켜 비색(colorimetry), 또는 산화반응(oxidative reaction)으로 소비되는 ... 때에 발생하는 H _{2} O _{2}를 페르옥시데이스에 의해 정량할 수 있다. 1) GOD법(glucose oxidase, 포도당산화효소)은 이 효소(enzyme)의 촉매작용(catalytic ... action)에 의해 포도당(glucose)을 산화하여 생성된 H _{2} O _{2}를 과산화효소(peroxidase) 또는 카랄라아제(catalase)존재하에 적절한 공역반응(
Methanol was synthesized by homogeneous and catalytic reactions of partial oxidation of methane. ... The catalyst used was Bi-Cs-Mg-Cu-Mo mixed oxide. ... For both homogeneous and catalytic reactions, the methane conversions were around 5%.
In this study, toluene catalyticoxidation was investigated using various metal components (Cu, Ce, ... By the reduction treatment before toluene oxidation, the catalytic activity of the oxidation below 250 ... Among the metals, 5 wt% Cu/zeolite showed the best catalytic activity. 100 % conversion was achieved
In this study, the NO oxidation using dry oxidant produced by catalytic H2O2 conversion was conducted ... It was shown that Mn-based Fe2O3 support catalyst has the best performance in the catalytic H2O2 conversion ... and its combined-NO oxidation.
The catalytic activity was changed with the content of Mn and the calcination temperature. ... The catalysts used were mixed oxides of late-transition metals, such as Mn, Fe, Co, Ni and Cu. ... Of the catalysts, A-Mn0.2-6, which contains 0.2 mole of Mn and calcined at 600℃, showed the best catalytic
, we are going to analyze the influences on the changes of catalytic activity or rate determining step ... The electronic effects of substrates and porphyrins on the catalytic activity of metalloporphyrin containing ... The catalytic activities of several metalloporphyrin, wherein the porphyrins are TPP(5,lO,l5,20-Tetraphenyl
It critically reviews measured mercury emissions progress in the development of promising control technologies ... It critically reviews measured mercury emissions progress in the development of promising control technologies ... This review provides useful information to scientists and engineers in this field.
catalytic reactor where a thin film of Pt was deposited on the yttria stabilized zirconia as an electrode ... as well as a catalyst. ... Electrochemical promotion of the reaction rate was investigated for CO oxidation in a solid electrolyte
ultimately on corrugate catalytic support. ... washcoat for a final corrugate type catalytic reactor. ... Amount of the added vanadium oxide determined the viscosity of catalyst slurry, which is important for
Cu2+는 catalytic transfer oxidant로 작용하여coupled oxidation reaction 과정을 거쳐 benzoin을 benzil로 산화시켰다. ... 이처럼 질산암모늄에 의해 Cupric acetate가 재생성되므로 반응의 효율성이 높아지게 된다. cupric salt는 mild한 oxidant이기 때문에 diketone을 산화시키지는 ... 일차알코올을 알데히드로 산화시키는 적절한 산화제로 chromium trioxide-pyridine complex와 pyridinium chloromate를 들 수 있다.
The rGO has been
used recently to increase catalytic activity in the o-nitroaniline reduction to NaBH4 ... Today, finding superior methods for synthesis of graphene oxide (GO) and reduced graphene
oxide (rGO ... ) from commercial graphite, is still a challenge.
But, the relationship between subunit structure and catalytic function of the enzyme is not known. ... In the result, we succeeded in isolating an active monomer as an oxidized soluble starch-conjugated ... in nature, and the subunit structure of the enzyme plays an important role in stabilization but not catalytic
The catalytic hydroxylation of several cycloalkanes in dichloromethane have been investigated using ... In(Ⅲ)-, Tl(Ⅲ)-porphyrin complexes as a catalyst and NaClO, NaClO2, H2O2 as a terminal oxidant. ... In this experimental condition NaClO2 was rather efficient terminal oxidant than NaClO and H2O2.
their catalytic activity and single-cell performance towards H2 oxidation. ... 0.5 h as anode have shown better catalytic activity and PEMFC polarization performance than those of ... Different oxidation treatments on CNTs using diluted 4.0 M H2SO4 solution at room temperature and or
The catalytic activity of the hybrid catalysts was investigated by CO oxidation reaction with oxygen ... Thermal stability of the metal-oxide hybrid catalyst was demonstrated heating the sample up to in air ... Thermally stable /Pt/ core-shell nanocatalyst has been synthesized by chemical processes.
Powders with and without P123 were compared in catalytic tests. ... The catalytic activity and selectivitywere monitored by GC/MS, 1H, and 13C-NMR spectroscopy. ... A transition metal cobalt oxide supported on aluminawith and without P123 was tested to find the most
The catalyticoxidation reaction of several cycloolefins in CH2Cl2 have been investigated using non-redox ... a terminal oxidant. ... The conversion yield of cycloolefin was in the following order : C5 〈 C6 〈 C7 = C8.
Thus, this study was conducted to produce synthesis gas by the partial oxidation of methane to decrease ... The highest catalytic activity was obtained with the 13wt% Ni/MgO catalyst, with which methane conversion ... best MgNiO2 solid solution state, which can explain the highest catalytic activity of the 13wt% Ni/MgO