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Question 6 ( X-ray photoelectron spectroscopy (XPS) is a surface chemical analysis technique that can be used to analyze the surface of a material. Following questions are based on XPS. i) XPS is based upon ii) K.E of photoelectron is iii) All surface studies are carried out under Ultra High Vacuum (UHV). The degree of vacuum is

Question 6 ( X-ray photoelectron spectroscopy (XPS) is a surface chemical analysis technique that can be used to analyze the surface of a material. Following questions are based on XPS. i) XPS is based upon ii) K.E of photoelectron is iii) All surface studies are carried out under Ultra High Vacuum (UHV). The degree of vacuum is

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question 6 ( X-ray photoelectron spectroscopy (XPS) is a surface chemical analysis technique that can be used to analyze the surface of a material. Following questions are based on XPS. i) XPS is based upon ii) K.E of photoelectron is iii) All surface studies are carried out under Ultra High Vacuum (UHV). The degree of vacuum is iv)a) XPS detects all elements except and b) In XPS the detection limits for most of the elements are d) 0.01atom % = ppm. v) The basic components for XPS or UPS are: 1. 2. 3. 4. 5.
Transcribed Image Text:Question 6 ( X-ray photoelectron spectroscopy (XPS) is a surface chemical analysis technique that can be used to analyze the surface of a material. Following questions are based on XPS. i) XPS is based upon ii) K.E of photoelectron is iii) All surface studies are carried out under Ultra High Vacuum (UHV). The degree of vacuum is iv)a) XPS detects all elements except and b) In XPS the detection limits for most of the elements are d) 0.01atom % = ppm. v) The basic components for XPS or UPS are: 1. 2. 3. 4. 5.
vi) The advantages of using UV radiation X- rays in over are and vii) Following is a XPS spectrum obtained from a Pd sample (BE for 3d at 335eV, 3p and 3s at 534/561 and 673EV respectively). XPS Sanple : MyK. 1253.6cU 3E+05 3d MNN Signal (cps) 3s 4s 1000 800 600 400 200 BE (eV) a) What will be the kinetic energies for? 3d electron eV. Зр electron eV, eV 3s electron eV. b) MNN is not a XPS peak. Explain
Transcribed Image Text:vi) The advantages of using UV radiation X- rays in over are and vii) Following is a XPS spectrum obtained from a Pd sample (BE for 3d at 335eV, 3p and 3s at 534/561 and 673EV respectively). XPS Sanple : MyK. 1253.6cU 3E+05 3d MNN Signal (cps) 3s 4s 1000 800 600 400 200 BE (eV) a) What will be the kinetic energies for? 3d electron eV. Зр electron eV, eV 3s electron eV. b) MNN is not a XPS peak. Explain
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