SEM Images Of Co-Ni-N Elecdeposition

2. Set the battery voltage to 10V where the positive is on the right of the battery.

The blue line on left graph illustrated the ion binding potential for free GpdQ with 2 molar equivalence of cobalt ion added. The first peak at 500nm is very distinct, which reflects strong metal ion affinity in α-site; but the second peak at around 570nm is not easily observed, suggesting a week metal ion affinity on β-site.

The Lithium Nickel Manganese oxide battery is still in its experimental stages. It consists of a 25% nickel substituted in a LiMn2O4 spinel. This is because Manganese will have 4 electrons in its valence shell which will avoid the Jahn-Teller distortion caused due to the Mn3+. Due to the oxidation or reduction of Nickel ions which leads to the transfer of electrons which corresponds to electric current. LiNi0.5Mn1.5O4 takes shape in two conceivable crystallographic structures concurring the cationic sub lattice: the face-focused spinel (S.G. Fd3m) named as "cluttered spinel" furthermore, the straightforward cubic stage (S.G. P4332) named as "requested spinel". This addition allows

This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor.

PHYSICAL CHEMISTRY LABORATORY REPORT (CHE 414L) Department of Chemical Engineering School of Engineering and Architecture Saint Louis University Group No. 12 Members: DEMOT, Judy Ann SOMERA, Randolf P. TIPAYNO, Samantha TORZAR, Precious Imee I. Signatures: ____________________ ____________________ ____________________ ____________________

A lot of information from different sources was gathered with the purpose of comparing different Li-ion batteries mechanisms, cathode and anode materials, structure and fabrication procedures, and their respective advantages and disadvantages.

To wrap your mind on what this element really is, here is the basic knowledge on Cobalt. Cobalt, is the 27th element on the periodic table from the fact that it has 27 protons. It is also referred through the universal symbol Co and is a transition metal. There are 8 different isotopes in Cobalt 1 of the them is stable meaning it will not decay or change into any other element. With a melting point of 1495 degrees celsius and a boiling point of 2927 degree celsius this metal needs lots of energy to change state. The element in its pure form is silver and blue, but fragile to the touch. The history of

The use of Cobalt, a rare Earth metal, in today's technology has created vast problems among the areas in which it is mined. 60% of the cobalt on Earth is mined from the Congo locate in Africa; however, the Congo is a very impoverished and corrupt country. Many of the miners, including children, are forced to work long hours, and in very dangerous environments without the necessary protection. Cobalt, an essential piece of technology used to charge lithium batteries, allows for devices to become smaller and smaller, thus important for this era of technology. For example, the average car has between 10-20 pounds of cobalt; whereas a smart phone contains 5-10 grams. Since the discovery of child labors and unsafe work conditions in the congo,

The electrolysis process is a redox reaction. The aluminium is reduced, leaving behind pure aluminium at the cathode. The oxygen laced in the aluminium ore is then harvested at the anode, and it is oxidised. This redox reaction is what allows the aluminium to be processed to be ready for casting. (BBC,

The Fe-Co deposit obtained from ethaline and reline was successfully deposited on a copper substrate by maintaining a steady potential of 3.0 V at 60℃ for 2 hours. The Fe-Co coating from reline was dark black in colour, whereas the Fe-Co coating from ethaline appeared to show a tint of grey on the surface. The Fe-Co deposits in both liquids were smooth and uniform. Figure 6.3 a and b show the SEM images of Fe-Co deposited from ethaline and reline. It is clear from the images that there is a variation in morphology from both liquids. The Fe-Co coating from reline appears to show a more nodular shaped structure which is evenly spread on the surface of the copper substrate when compared to Figure 6.3 a.

  Due  to  an  increasing  global  demand  for  energy,  engineers  have  been  challenged  to  come   up  with  a  new  generation  synergy,  which  has  to  be  a  sustainable  energy  system.  One  of  the   major  capacity  additions  over  the  next  20  years  will  be  natural  gas  fired  power  plants,   which  utilize  gas  turbine  power  generation  equipment.  The  demand  for  cobalt  is  expected   to  increase  significantly.  But  can  the  identified  reserves  of  cobalt  cope  with  this  increased   demand?  The  purpose  of  this  report  is  to  understand  the  market  dynamics  of  cobalt   scarcity,  and  present  recommendations  for

Zinc is currently the fourth most widely consumed metal in the world after iron, aluminum, and copper. In nature, zinc ores could be divided into sulphide minerals and oxide minerals. Zinc is extracted mostly from zinc sulfide ores. With depletion of global resources of zinc sulfides as well as the restriction on sulfur emissions during their processing, there is an increasing focus on the processing of the huge reserves of zinc oxide ores (Li et al., 2010).

In retrospect, the practical was very easy to follow and achieved the desired results. In order to quantify the amount of electricity generated through the spontaneous redox reaction, a multimeter was used to measure the follow of electricity between the Copper and the anode. This gave us an increased reliability and accuracy than using an analogue voltmeter. When it was calculated, the reaction between the Copper and Magnesium in theory had a potential difference of 2.58v. The Copper and Zinc reaction was also calculated to have the expected potential difference of 1.1v whilst the Copper and Lead had 0.7v.

The purpose of this experiment was to explored concepts electrochemistry by creating galvanic cells and observed the spontaneity of reactions in three parts. In part A of this experiment, strips of copper, lead, and zinc were placed onto a well plate containing either 1M . Observations reported over a ten minute interval were recorded in table 1. In part B, electrochemical cells were made with strips of iron, copper, lead, and Zinc dip into copper sulfate or lead nitrate solution . The salt bridge was made using filter paper and .5 M potassium nitrate. The voltage of the reactions between the metals can be record by attaching the anode and cathode probe to each metal pair with alligator clips. In part C, a brass penny was made through the reduction of zinc. The mass of the pennies were measured in each step: initial mass, mass after deposited of zinc, and mass with brass formed.

The purpose of this lab is to determine the concentration of CoCl2 through the precipitate titration of cobalt ions. As seen in the following given equation: CoCl2 (aq) + 2NaOH (aq) → 2NaCl (aq) + Co (OH) 2 (s), the solution comprising of cobalt chloride being titrated with sodium hydroxide causes a double decomposition reaction generating sodium chloride and cobalt hydroxide.