2017
DOI: 10.1021/acsami.6b13984
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Targeted Synthesis of Unique Nickel Sulfide (NiS, NiS2) Microarchitectures and the Applications for the Enhanced Water Splitting System

Abstract: Water splitting is one of the ideal technologies to meet the ever increasing demands of energy. Many materials have aroused great attention in this field. The family of nickel-based sulfides is one of the examples that possesses interesting properties in water-splitting fields. In this paper, a controllable and simple strategy to synthesize nickel sulfides was proposed. First, we fabricated NiS hollow microspheres via a hydrothermal process. After a precise heat control in a specific atmosphere, NiS porous hol… Show more

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Cited by 375 publications
(192 citation statements)
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“…Both samples exhibit similar XPS spectra with the presence of Ni and S, except the addition of significant C 1s peak for NiS x /S‐rGO. The Ni 2p and S 2p regions of NiS x and NiS x /S‐rGO samples are consistent with those in the previous reports . The Ni 2p spectra comprise of spin orbit doublet of Ni 2p 3/2 and Ni 2p 1/2 , with each doublet being deconvoluted into three peaks (including a pair of satellite peak).…”
Section: Resultssupporting
confidence: 89%
“…Both samples exhibit similar XPS spectra with the presence of Ni and S, except the addition of significant C 1s peak for NiS x /S‐rGO. The Ni 2p and S 2p regions of NiS x and NiS x /S‐rGO samples are consistent with those in the previous reports . The Ni 2p spectra comprise of spin orbit doublet of Ni 2p 3/2 and Ni 2p 1/2 , with each doublet being deconvoluted into three peaks (including a pair of satellite peak).…”
Section: Resultssupporting
confidence: 89%
“…There is evidence of surface oxidation of the as‐deposited film via the S 2p peak at 168 eV that corresponds to sulfate . The binding energies for Ni 2p 3/2 over the range from 854 to 866 eV (Figure b1) can be attributed to Ni in a +2 oxidation state which comprises of multiple contributions consistent with the formation of NiO and Ni(OH) 2 as well as NiS . From the high‐resolution O 1s spectra (Figure b3) oxygen is present in the sample consisting of contributions at 531 and 532 eV which can be attributed to metal oxide and hydroxyl groups, respectively.…”
Section: Resultsmentioning
confidence: 98%
“…To further examine the chemical valence, X‐ray photoelectron spectroscopy (XPS) was carried out. Figure D displays the spectra of Ni 2p for the three samples, where the two peaks located at 873.6 eV (2p1/2) and 855.9 eV (2p3/2) indicate the binding energy of Ni 2+ . Representatively, the deconvoluted peaks located at 373.8 and 367.8 eV are attributed to Ag 0 3d3/2 and 3d5/2 for the ANS‐2 sample .…”
Section: Resultsmentioning
confidence: 99%