Solid

Table 3 shows the BET surface area of both the fresh and hydrothermally aged SCR catalysts. For fresh BEA zeolite and SCR catalysts, as the doping amount of catalytic additive increases, the BET surface area decreases, probably because the additive Cu, Ce, and Nb species blocked some of the zeolite channel, hindering the entry of N2 into the pores (Bin et al. 2014). After aging at 600 °C, all the samples showed 3-20 m2/g increased BET surface area. Aging condition of 600 °C is a relatively mild…

3.1.3 FESEM and EDS analysis The structural morphology of the Pure HA, Sr-doped HA, La-doped HA and La/Sr co-doped HA (different La concentrations of 0.03, 0.06 and 0.1M) nanoparticles are analyzed by FESEM images are shown in Fig. 3 (a)-(f). The morphology of pure HA shown in Fig 3 (a) indicates that formation of spherical (or) chain pearl shape of nanoparticles, ranging from 70 to 84nm. Further, Sr (0.1M) doped HA and La (0.1M) doped HA belongs to Fig.3 (b)-(c), appears the formations of few…

Paragraph 1 Compare and contrast the crystal structures and crystal chemistry of quartz, α-FePO4 and β-FePO4. Haines’ research paper studies the change that occurs in the FePO4 structure as it is studied from temperatures 294K to 1073K. A transition is noticed at 980K, when it’s tetrahedral α-quartz structure experiences high pressure levels, changing the structure to β-phase, a more dense octahedral structure. Cell parameters of FePO4 in α-phase increases in cell parameters and volume as…

Does rock salt effect ice? Rock salt effects the boiling and freezing point of ice. Salt has always helped the roads when it is icy in the winter, but a new idea for the roads may be the use of beet juice. In group A with the little bit of ice and water, that we continued to stir, the temperature decreased from 2°C to .5°C in five minutes. In group B, 10 grams of rock salt was added to the ice water and stirred. The temperature of the mixture decreased from -1°C to -6°C in five minutes. After…

Solids, Liquids, and Gases Solid, Liquids, and Gases are very interesting types of states of matter; however, they are distinct from one another. As already mentioned in class before, matter is everything that takes up space and its right to say that the space that is taken by matter is or a solid or a liquid or a gas. That can prove to us that this three states of matter are essential in this world we know. A solid is a sample of matter that retains its shape and density when…

In this experiment one, are determining the melting points of different crystalline substances following a specific procedure. By finding the melting point of a crystalline substance, it helps determine what kind of compound it is as well as initiate the purity. A DigiMelt apparatus can be used to determine the melting point where a small amount of the the substance is packed into a capillary tube and heated slowly in the apparatus which includes a thermometer, a heating coil and a magnifying…

Paragraph 1 (300 - 500 words) Compare and contrast the crystal structures and crystal chemistry of quartz, α-FePO4 and β-FePO4 To compare quartz, α-FePO4 and β-FePO4, it is essential to look at their crystal structures and crystal chemistry. This can be done by observing their three-dimensional structures as well as their reactions to various degrees of temperature. This particular research takes a look at the structure of FePO4 between temperatures of 294K to 1073K. At lower temperatures,…

Methods and Materials 0.4g maleic anhydride and 1ml ethyl acetate was added to a test tube and mixed until dissolved. 2ml hexane was then added to the test tube, followed by 0.4ml cyclopentadiene. The test tube reacted for 5 minutes in a test tube rack and then 2 minutes in an ice-bath to allow for complete crystallization. The crystals were then put through the filtering apparatus to collect and dry all the crystals. About 3ml was used to rinse the crystals while in the apparatus. The…

Elizabeth Lee James Poland CHEM 104A 21 September 2014 Discussion and Conclusion of Experiment #4: States of Matter Sleuth Discussion The results of this experiment enabled the experimenter to determine the identity of an unknown salt (#3) using ion-exchange chromatography by analyzing the inorganic salts of the unknown salt, which can be examined by acid-base titration using ion-exchange resin. The stationary phase is made up of acid groups which will attach to the resin, which is then rinsed…

I'm going to be talking (in Snake's voice) Metal Gear. While this game series is close to the end, nothing is more important to a series than its story, though this story is more plot twist in its games after MGS 1. In Metal Gear Solid, a man, code name: Solid Snake is sent to Shadow Moses Island to stop the plans of Liquid Snake and his lackeys. To be honest I will go through the bosses real quick, 3, 2, 1, GO! Revolver Ocelot, a gunner with an importance to the series, Vulcan Raven, the…