<scp>NMR</scp>
            Spectroscopy in Bitumen Characterization

Varanda, Catarina; Portugal, Inês; Ribeiro, Jorge C.; Silva, Carlos M.; Silva, Artur M. S.

doi:10.1002/9781119286325.ch6

Cited by 4 publications

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“…In addition, the downshift from ≈9.20 ppm in [BMIM][BF 4 ] to ≈9.35 ppm in HBPF can be attributed to hydrogen bonding between [BF 4 ] − and P x O y , HC(a), and HC(b). [23] In the 31 P ssNMR spectrum (Figure 1k‐iii,iv), three very weak peaks at ≈0.65, ≈8.45, and ≈−32.49 ppm can be attributed to H 3 PO 4 [(HO) 3 PO], H 4 P 2 O 7 , [ 26 ] and the internal P atoms in the middle of polyphosphoric acid chains [ 27 ] in BP, respectively (Figure 1k); this is consistent with XPS P 2p spectra. The very strong peak at ≈19.71 ppm corresponds to nonoxidized black phosphorene.…”

Section: Resultsmentioning

confidence: 99%

Ultratough Hydrogen‐Bond‐Bridged Phosphorene Films

et al. 2022

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Statistical Analysis: In this work, Young's modulus of the HBPFs with different intercalation ions was calculated by Equation (1) and was shown in Figure S12 (Supporting Information). Young's modulus and pretensions of each HBPF under different loads were calculated and the average was taken. The data including Young's modulus and pretensions are given in the form of mean ± standard deviation. The sample size is also listed in Figure S12 (Supporting Information). Statistical analysis was carried out using Microsoft Excel software.

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Section: Resultsmentioning

confidence: 99%