منابع مشابه
Formaldehyde degradation by catalytic oxidation.
Formaldehyde used for the disinfection of a laminar-flow biological safety cabinet was oxidatively degraded by using a catalyst. This technique reduced the formaldehyde concentration in the cabinet from about 5,000 to about 45 mg/m3 in 8 h. This technique should prove useful in other applications.
متن کاملAdsorption of formaldehyde by various surfaces during gaseous decontamination.
Study of the effect of atmospheric relative humity (RH) on the adsorption of paraformaldehyde-generated formaldehyde gas on various surfaces and the effect of the adsorbed formaldehyde on the death rate of bacterial spores showed that increasing the RH caused a corresponding increase of formaldehyde levels on all surfaces. The amount peaked at 83% RH. The levels obtained at 100% RH were slightl...
متن کاملFully Automated Self-calibrating Hybrid Flow Analyzer for Gaseous Formaldehyde
We report fully automated self-calibrating formaldehyde analyzers relying on a hybrid flow format and include operational scheme and design details. Long-term operation is made possible with the use of syringe pumps. Four identical analyzers were built and showed low LODs of 120 pptv or better (S/N =3) and good linearity over 0-50 ppbv HCHO concentration range (r > 0.9960). The analyzer can res...
متن کاملElectrocatalytic oxidation of formaldehyde on novel composite of nickel/triton-x100/poly(o-aminophenol-co-aniline)
Oxidation of formaldehyde (HCHO) is very important, owing to its use in fuel cells. Modification of electrodes surfaces is an excellent way to decrease the overpotentials as well as to increase the current density of the voltammetric response.pt as most efficient metal catalyst can easily be poisoned by product of oxidation and also it has high cost. In this work an efficient and low cost elect...
متن کاملSelective Oxidation of Dimethylether to Formaldehyde on SmallMolybdenum Oxide Domains
MoOx species dispersed as small domains on Al2O3, ZrO2, and SnO2 catalyze the oxidative conversion of dimethylether to formaldehyde with high primary selectivity (80–98% HCHO, CH3OH-free basis) at low temperatures (500–550 K). The reaction appears to proceed via redox cycles using lattice oxygen and turnover rates increase with the size and reducibility of MoOx domains. Dimethylether conversion...
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ژورنال
عنوان ژورنال: Nature
سال: 1966
ISSN: 0028-0836,1476-4687
DOI: 10.1038/2101356a0