1. School of Mechanical and Materials Engineering Washington State University Pullman WA 99164 USA
2. Faculty of Chemical Engineering Yunnan Provincial Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials Kunming University of Science and Technology Kunming 650500 P. R. China
3. Department of Chemistry and Biochemistry Northern Illinois University DeKalb IL 60115 USA
4. X‐ray Science Division Argonne National Laboratory Lemont IL 60439 USA