Author: nguyendun

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Review/Perspective High Entropy Oxides: https://pubs.acs.org/doi/pdf/10.1021/jacs.2c11608 (J. Am. Chem. Soc. 2023, 145, 5991−6006) Electrode/Electrolyte/Gas Phase Boundary: https://pubs.acs.org/doi/pdf/10.1021/cr020724o (Chem. Rev. 2004, 104, 4791−4843) Report/Communication/Letter Kirkendall Effect for nanoparticle synthesis: the role of diffusion in hollow structure formation https://www.science.org/doi/full/10.1126/science.1096566 (Science 30 Apr 2004, Vol 304, Issue 5671, pp. 711-714)

Non-oxide metal synthesis

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Case I: Nitride Example 1: Copper 50 mg of Cu(OMe)2 was added into a 10 mL glass vial. Afterward 5 mL benzylamine was added and the vessel was sealed with a Teflon cap and taken out of the glovebox. The reaction vessel was transferred into a preheated oil bath set at 140 °C and held…

Metal precursor for nanoparticle synthesis

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Case I: Metal acetylacetonate Example 1: Nickel First, the Ni±oleylamine complexwas prepared by reacting 0.52 g of nickel(acetylacetonate)2[Ni(acac)2, Aldrich Chemical Co., 95%] and 2 mL of oleyla-mine (Aldrich Chemical Co., technical grade, 80%) at 100Cunder an Ar atmosphere. The resulting metal-complex solu-tion was injected into 5 g of triphenylphosphine (TPP, AldrichChemical Co., 99%) at 215C.…

Cyclic voltammetry – Charge-Discharge

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Case 1: Cobalt oxide in Li-Battery Figure 1. Electrochemical properties of the multi-shelled cobalt oxide yolk–shell powders post-treated at various temperatures: (a) Initial discharge and charge curves, (b) and (c) CV curves, and (d) cycling performances.[Nano Research 2014, 7(12): 1738–1748] Figures 6(b) and 6(c) show the cyclic voltammograms (CVs) of the two samples post-treated at…

TEM Characterization

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Case 1: Antiferromagnetic Cobalt Oxide Nanooctahedra The organic−inorganic interface determines the crystalline growth directions of the nanoparticles by means of a dynamic solvation of these surfactants in solution, which generally contain electron-donating groups to allow coordination to electron-poor metal atoms at the nanocrystal surface. Nano Lett. 2014, 14, 2, 640–647 Figure 1. EEL spectra (h)…

Synthetic Technique

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Case 1: Cobalt Oxide Nanoparticles [prof. Joon T. Park’s group] Example 1: The fcc CoO solid nanoparallelepipeds, are reduced by the oleylamine surfactant to form fcc Co hollow nanoparallelepipeds A green slurry of [Co(acac)3] (0.10 g, 0.28 mmol) in neat oleylamine (9.24 mL) was heated at 135 °C for 5 min. Immediately after dissolution, the reaction mixture was flash-heated to 200 °C. After…

X-ray diffraction

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References Lattice Strain Formation through Spin-Coupled Shells of MoS2 on Mo2C for Bifunctional Oxygen Reduction and Oxygen Evolution Reaction Electrocatalysts Adv. Mater. Interfaces 2019, 6, 1900948 Calculate lattice strain Relative strain in MoS2 of core-shell structures is calculated by the Williamson-Hall method (W-H method) (Acta Metall. 1, 22-31 (1953)). W-H method based on the principle…

X-ray Photoelectron Spectroscopy

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Reference Modified Oxygen Defect Chemistry at Transition Metal Oxide Heterostructures Probed by Hard X-ray Photoelectron Spectroscopy and X-ray Diffraction I. Inorganic Chemistry Reference Modified Oxygen Defect Chemistry at Transition Metal Oxide Heterostructures Probed by Hard X-ray Photoelectron Spectroscopy and X-ray Diffraction Elemental Core Level Shift in High Entropy Alloy Nanoparticles via X-ray Photoelectron Spectroscopy Analysis…

How to Characterize (Oxygen/Nitrogen) Defects/Vacancies at Transition Metal Oxide?

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I. XPS and XRD 1. Refrences Engineering Interface and Oxygen Vacancies of NixCo1–xSe2 to Boost Oxygen Catalysis for Flexible Zn–Air Batteries ACS Appl. Mater. Interfaces 2019, 11, 31, 27964–27972 Unraveling the Influence of Oxygen Vacancy Concentration on Electrocatalytic CO2 Reduction to Formate over Indium Oxide Catalysts ACS Catal. 2023, 13, 6, 4021–4029 2. Typical Reasons…

Water splitting

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