Figure 4. High-resolution (A) Ti 2p, (B) Si 2p, (C) P 2p, (D) N 1s, (E) C 1s, and (F) O 1s XPS spectra for APP-3BL. APP: Ammonium polyphosphate; XPS: X-ray photoelectron spectroscopy.
All published articles are preserved here permanently: