In the oxygen sensor, ¼ of the Zr's have been replaced with Ca. (This is called "doping".) What is the usual charge on Ca (assuming a full valence shell)? Calculate the total positive charge from atoms fully in the unit cell. (¾ of Zr atoms in unit cell x charge on Zr + charge on Ca = To balance the unit cell, you must have on atoms in the unit cell. What has to happen to the number of oxygen ions to accommodate the replacement of Zr by Ca? In other words, how many oxide ions will be in the 'doped' cell?

In the oxygen sensor, ¼ of the Zr's have been replaced with Ca. (This is called "doping".) What is the usual charge on Ca (assuming a full valence shell)? Calculate the total positive charge from atoms fully in the unit cell. (¾ of Zr atoms in unit cell x charge on Zr + charge on Ca = To balance the unit cell, you must have on atoms in the unit cell. What has to happen to the number of oxygen ions to accommodate the replacement of Zr by Ca? In other words, how many oxide ions will be in the 'doped' cell?

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter21: The Solid State: Crystals

Section: Chapter Questions

Problem 21.36E: The first two signals from a powdered sample has X rays (=1.47742A) diffracted at angles of 13.48...

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