Synthesis of Theoretically Stable Oxygen-Deficient Perovskites
Session Number
2
Advisor(s)
Dr. Kenneth Poeppelmeier and Patrick Ding, Northwestern University
Location
A123
Discipline
Chemistry
Start Date
15-4-2026 11:10 AM
End Date
15-4-2026 11:55 AM
Abstract
The perovskite crystal structure is a structure of the form ABX3, where A, B, and X are elements in a 1:1:3 ratio. Oxygen-deficient perovskites are a variant of this structure with less Oxygen than normal, causing their structure to be complex and uniquely useful to fields such as catalysis and fuel cells. Four compounds of the Oxygen-deficient perovskite class were predicted to be stable in the paper Informatics-Based Learning of Oxygen Vacancy Ordering Principles in Oxygen-Deficient Perovskites, all of the form A0.5La0.5Cu0.25B0.75O2.5 . The four compounds discussed are (A=Ca B=Cr), (A=Ca B= La), (A=Sr B=Al), and (A=Ba B=Al). This project seeks to determine whether those Oxygen-deficient perovskites are synthesizable through various synthesis methods and powder X-ray diffraction.
Synthesis of Theoretically Stable Oxygen-Deficient Perovskites
A123
The perovskite crystal structure is a structure of the form ABX3, where A, B, and X are elements in a 1:1:3 ratio. Oxygen-deficient perovskites are a variant of this structure with less Oxygen than normal, causing their structure to be complex and uniquely useful to fields such as catalysis and fuel cells. Four compounds of the Oxygen-deficient perovskite class were predicted to be stable in the paper Informatics-Based Learning of Oxygen Vacancy Ordering Principles in Oxygen-Deficient Perovskites, all of the form A0.5La0.5Cu0.25B0.75O2.5 . The four compounds discussed are (A=Ca B=Cr), (A=Ca B= La), (A=Sr B=Al), and (A=Ba B=Al). This project seeks to determine whether those Oxygen-deficient perovskites are synthesizable through various synthesis methods and powder X-ray diffraction.