2019年6月13日 · Here, we investigate the reversible NH 4+ (de)insertion behavior in a bi-layered V 2 O 5, where the prominent pseudocapacitive behavior is coupled with the ion-electrode interaction, i.e., strong H bonding between NH 4+ and the oxide layers of …

2021年6月1日 · The electrochemical reaction mechanism of NVO D cathode was elucidated via the in-situ Raman spectra, ex-situ XRD patterns and XPS measurements. As exhibited in the Raman measurement ( Fig. 5 a), the peaks at approximately 200–500 and 500–1200 cm −1 were attributed to the external and internal modes caused by V-O-V bending and V-O ...

2025年2月15日 · Quasi in situ XPS/UPS measurements were performed on the sample repeatedly after annealing. The conversion of (NH 4) 2 MoS 4 to MoS 2 is completed at 270 °C in an H 2 atmosphere. MoS 2 is reduced to metallic Mo after heating at …

XPS Spectra Nitrogen (N) Compounds The XPS Spectra section provides raw and processed survey spectra, chemical state spectra, BE values, FWHM values, and overlays of key spectra. Atom% values from surveys are based on sample, as received, and Scofield cross-sections. Atom% values are corrected for IMFP and PE.

2019年6月27日 · The observation of U 4f signals by XPS and a homogeneous uranium distribution by EDS in these reacted samples (COF-SO 3 H and [NH 4] + [COF-SO 3 −]) directly attested the capture of uranium (Figures S14 and S15, Supporting Information).

Nonmetallic ammonium (NH4⁺) ion batteries are promising candidates for large‐scale energy storage systems, which have the merit of low molar mass, sustainability, non‐toxicity and non‐dendrite....

2021年6月10日 · In this research, we report cubic copper hexacyanoferrate (CuHCF) as host for aqueous NH 4+ storage. Firstly, the favorable electrochemical performance is predicted by DFT calculations because of the formation of hydrogen bonds between H atoms in NH 4+ species and N atoms in CuHCF.

The XPS Spectra section provides raw and processed survey spectra, chemical state spectra, BE values, FWHM values, and overlays of key spectra. Atom% values from surveys are based on sample, as received, and Scofield cross-sections. Atom% values are corrected for IMFP and PE. Peak-fits are guides for practical, real-world applications.

2016年8月30日 · In this work, we synthesized advanced single crystalline (NH 4) 0.5 V 2 O 5 nanosheets by a one-step hydrothermal method and proposed it as an anode material for ALIBs for the first time. It is found that electrochemical performance of (NH 4) 0.5 V 2 O 5 is significantly improved in comparison with the reported results.

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