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, illustrating that the close-contacted structure is required for improving the anti-poisoning ability of Pt catalysts. The electrocatalytic durability of EEG-SnO2@Pt for methanol oxidation is also.... Although the presence of SnO2 reduces the electrical conductivity of EEG-SnO2@Pt, the electrocatalytic properties of EEG-SnO2@Pt are still substantially increased, proving that the anti-poisoning......
-oxidation of formaldehyde on Pt catalyst is a self-poisoning reaction which blocks the active electrocatalyst surface by strongly adsorbed reaction intermediates such as CO, thus diminishing the electrocatalytic activity by poisoning the catalyst. VILLULLAS and MATTOSCOSTA[8] and SANTOS and PROFETI[9] reported that there may exist a bifunctional mechanism between SnO2 and Pt. In this mechanism......
; emission; historical accumulation; dissipative uses; life cycle 1 Introduction In recent decades, lead pollution incidents have happened frequently in China [1]. Specially, the children lead poisoning...-fa. Status, sources of pollution and control measures of Chinese children lead poisoning [J]. Guangdong Trace Elements Science, 2010, 17(1): 1-13. (in Chinese) [2] ZHAO Ting-ting, CHEN Bing, WANG Hai......
particles into the liquid, resulting in poisoning and dross formation [2]. Therefore, a physical approach may be preferred to prevent such contaminations [3-5]. Physical modifications address the shortcomings of the chemical methods because they are more cost-effective, more environmentally sustainable and do not cause precipitation or poisoning. Furthermore, physical methods improve......
transmission and low extinction coefficient in visible spectrum, Ta2O5 thin films are used in optical applications[1-2], such as anti-reflecting coatings, optical waveguides, interference coatings... increases from 10% to 30%, the process changes from metallic mode to reactive mode, leading to so-called target poisoning. The deposition rate reaches a maximum (32.9 nm/min) at 0.3 Pa, and starts to decrease......
exhaust treatment [7]. To our knowledge, most of the studies on noble metal based catalysts have been reported. However, high cost of noble metals and their sensitivity to sulfur poisoning have......
), but it is very dependent on the melt contact time and no presence of poisoning elements, such as Fe and Si. However, debate still surrounds their exact mechanism of refinement, and there are many......
. References [1] NRIAGU J O. A silent epidemic of environmental metal poisoning [J]. Environ Pollution, 1988, 50: 139-161. [2] FORSTNER V, WITTMAN G T W. Metal pollution in the aquatic environment [J......
; 1 Introduction Due to good bioconsistence, biodegradability, and without poisoning side effect, polylactide (PLA) has attracted much attention recently......
. The spent Li-ion batteries and its incisors bound come out from the made process can give rise to the environmental poisoning. In other hand recycling the Co can also bring economical interests......