Spectroscopy — Construction of sulfur vacancies enriched hollow zinc cobalt bimetallic sulfides for high-performance supercapacitors

Measurement evidence

Spectroscopy

Construction of sulfur vacancies enriched hollow zinc cobalt bimetallic sulfides for high-performance supercapacitors · Qian X., Yin Y., Lu Y. et al. · Journal of Alloys and Compounds · 2022 · 165191

2 measurement groups · 11 results

Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.

Electron paramagnetic resonance (EPR, Bruker A30)

Electron paramagnetic resonance

Zn0.3Co2.7S4 · Powder

Used to analyse sulphur vacancies; Co3S4 and Zn0.3Co2.7S4 spectra compared in Fig. 2e.

Geometry: powder
Context: Derived sulphide target sample and Co3S4 comparison
Measurement source: p002 · 2.3. Characterization

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
EPR sulphur-vacancy g value	g = 2.003	—	—	Text Exact Reported	p004 · 3.1. Morphological and structural characterizations · Fig. 2e

X-ray photoelectron spectroscopy (Nexa, monochromatic Al Kalpha)

X-ray photoelectron spectroscopy

Zn0.3Co2.7S4 · Powder

Survey, Co 2p, S 2p and Zn 2p spectra; compared with Co3S4.

Geometry: powder surface
Context: Derived sulphide target sample and Co3S4 comparison
Measurement source: p002 · 2.3. Characterization

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Co 2p1/2 Co2+ binding energy	798.1 eV	—	—	Text Exact Reported	p004 · 3.1. Morphological and structural characterizations · Fig. 2b
Co 2p1/2 Co3+ binding energy	793.8 eV	—	—	Text Exact Reported	p004 · 3.1. Morphological and structural characterizations · Fig. 2b
Co 2p3/2 Co2+ binding energy	781.5 eV	—	—	Text Exact Reported	p004 · 3.1. Morphological and structural characterizations · Fig. 2b
Co 2p3/2 Co3+ binding energy	778.7 eV	—	—	Text Exact Reported	p004 · 3.1. Morphological and structural characterizations · Fig. 2b
S 2p1/2 binding energy	163.0 eV	—	—	Text Exact Reported	p004 · 3.1. Morphological and structural characterizations · Fig. 2c
S 2p3/2 binding energy	161.7 eV	—	—	Text Exact Reported	p004 · 3.1. Morphological and structural characterizations · Fig. 2c
metal-sulphur bond binding energy	164.4 eV	—	—	Text Exact Reported	p004 · 3.1. Morphological and structural characterizations · Fig. 2c
S 2p satellite binding energy	168.9 eV	—	—	Text Exact Reported	p004 · 3.1. Morphological and structural characterizations · Fig. 2c
Zn 2p1/2 binding energy	1045.2 eV	—	—	Text Exact Reported	p004 · 3.1. Morphological and structural characterizations · Fig. 2d
Zn 2p3/2 binding energy	1022.1 eV	—	—	Text Exact Reported	p004 · 3.1. Morphological and structural characterizations · Fig. 2d