金属与酸的反应(Thereactionofmetalswithacids)TalkingaboutthereactionbetweenmetalandacidLuanChunwu,thefirstmiddleschoolofXuanhuaCounty,HebeiProvinceAccordingtometalactivityordertableK,Ca,Na,Mg,Al,Zn,Fe,Sn,Pb,(H),Cu,Hg,Ag,Pt,Au,canbesummarizedfromtwoaspectsofqualitativeandquantitative:First,qualitativeaspects...
Arata.Catalysis of WO3/ZrO2 Mechanically Mixed with Pt/ZrO2 for Reaction of Butane to Isobutane.Applied Catalysis. 1998HINO M, ARATA K. Superacids by metal oxides IX Catalysis of WO3/ZrO2 mechanically mixed withPt/ZrO2 for reaction of butane to isobutene[J].Appl Catal, 1998, 169(1):151-...
3.06.1.1.2 Reactions with carboxylic acids and anhydrides Friedel–Crafts acylations with carboxylic acids are possible and although not as popular as acylating agents as the corresponding acyl halides or acid anhydrides, they have shown considerable utility particularly when preparation of such acid d...
The intensive use of fossil energy causes global warming. Hydrogen fuel cell is a technology that transforms the chemical energy stored in hydrogen directly into electricity with high efficiency, and its only emission is water. It acts as one of the practical and promising solutions to realize a ...
Ethanol is a type of alcohol with a 2-carbon chain ending with an OH group. Ethanol is the type of alcohol commonly referred to as alcohol, as in the alcohol found in alcoholic drinks. But in chemistry, the term alcohol means the functional group OH on a carbon chain. Ethanol is also...
It is known that the main-group metals and their related materials show poor catalytic activity due to a broadened single resonance derived from the interaction of valence orbitals of adsorbates with the broad sp-band of main-group metals. However, Mg cofactors existing in enzymes are extremely ...
A one-pot procedure to convert aromatic carboxylic acids into aromatic nitriles is described. The methodology is based on a palladium(II)-catalyzed decarboxylative cyanation reaction using cyanohydrins as soluble cyanide sources. The described reaction worked on a panel of substrates and is additionally...
Thenitrogen adsorption-desorption isotherms of silica materials obtained from bothtemplates showed that the materials were mesoporous with some microporositypresent in them.Studies with mucic and tartronic acids as templates also showed that thetemplate as well as the synthesis conditions (such as solvent...
Of common gaseous inorganic species, ozone is, in fact, the only compound with such a small bond energy (the O − O2 energy is ∼105 kJ mol–1); nitrogen dioxide, with an O − NO bond energy of ∼300 kJ mol–1 (≅399 nm) is more typical. Ionization becomes possible at ...
The UPD method can form fine-structured core-shell NPs with controlled shell thick- nesses. However, generally, the sample scale is restricted to be very small because the core NPs must be immo- bilised on the electrode for the deposition of Cu/Pb, unless the electrode has a very large ...