cMOF Evidence Base
Spectroscopy — General Synthesis of Mixed Semiconducting Metal Oxide Hollow Spheres with Tunable Compositions for Low-Temperature Chemiresistive Sensing

Measurement evidence

Spectroscopy

General Synthesis of Mixed Semiconducting Metal Oxide Hollow Spheres with Tunable Compositions for Low-Temperature Chemiresistive Sensing · Wang G., Zhou X., Qin J. et al. · ACS Applied Materials and Interfaces · 2019 · 35060-35067

2 measurement groups · 10 results

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

ICP-MS

Bulk elemental and compositional analysis

Ni-Co-Fe-Cu-Zn-TA-400 · Powder

PerkinElmer NexION 350D used to determine metal composition of Ni-Co-Fe-Cu-Zn-TA-400 nanoparticles.

Context
quinary MOHS powder
Measurement source
S-2 to S-3 · 1.4 Characterizations · Figure 3d; Table S2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Quinary MOHS ICP-MS Co atomic percentage18.2 +/- 0.8%—+/- 0.8%Text
Exact Reported		p004 / 35063 · Results and discussion · Figure 3d
Quinary MOHS ICP-MS Cu atomic percentage21.5 +/- 2.4%—+/- 2.4%Text
Exact Reported		p004 / 35063 · Results and discussion · Figure 3d
Quinary MOHS ICP-MS Fe atomic percentage17.6 +/- 1.0%—+/- 1.0%Text
Exact Reported		p004 / 35063 · Results and discussion · Figure 3d
Quinary MOHS ICP-MS Ni atomic percentage21.9 +/- 1.3%—+/- 1.3%Text
Exact Reported		p004 / 35063 · Results and discussion · Figure 3d
Quinary MOHS ICP-MS Zn atomic percentage20.8 +/- 2.2%—+/- 2.2%Text
Exact Reported		p004 / 35063 · Results and discussion · Figure 3d
Quinary MOHS metal ratioNi:Co:Fe:Cu:Zn = 0.91:0.94:1.16:1.17:1.00——SI Table
Exact Reported		S-24 · Table S2 · Table S2

X-ray photoelectron spectroscopy

X-ray photoelectron spectroscopy

Ni-Co-Fe-Cu-Zn-TA-400 · Powder

Kratos AXIS Ultra DLD with Al K alpha radiation; survey and high-resolution metal 2p spectra.

Atmosphere
UHV during XPS
Context
derived MOHS powders
Measurement source
S-3 and S-23 · 1.4 Characterizations; Table S1 · Table S1; Figures 3c-i, S3, S10
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Fe-Co-TA-400 XPS atomic contentsC 64.37%, O 28.56%, Co 2.44%, Fe 4.63%——SI Table
Exact Reported		S-23 · Table S1 · Table S1
Ni-Co-Mn-TA-400 XPS atomic contentsC 78.13%, O 20.54%, Ni 0.05%, Co 0.22%, Mn 1.06%——SI Table
Exact Reported		S-23 · Table S1 · Table S1
Quinary MOHS mixed valence statesFe(II)/Fe(III), Co(II)/Co(III), Ni(II)/Ni(III), Cu(I)/Cu(II), and Zn 2p peaks assigned.——Text
Qualitative		p004-p005 / 35063-35064 · Results and discussion · Figure 3e-i
Ni-Co-Fe-Cu-Zn-TA-400 XPS atomic contentsC 34.35%, O 49.95%, Ni 2.20%, Co 2.58%, Fe 5.79%, Cu 1.74%, Zn 3.39%——SI Table
Exact Reported		S-23 · Table S1 · Table S1