Noble-metal-free Ni3C as co-catalyst on LaNiO3 with enhanced ...
2020年11月15日 · The structure, composition, and morphology of the Ni 3 C loaded LaNiO 3 NPs are characterized by XRD, XPS, SEM, and HRTEM. The effects of loading different contents …
Nickel carbide (Ni3C) nanoparticles for catalytic hydrogenation of ...
Considering the known metastability of Ni 3 C at elevated temperatures (>300 °C), TEM, XRD, XAS and X-ray photoelectron spectroscopy (XPS) were used to verify the structural integrity of …
One-pot synthesis of Ni/Ni3C/Ni3N nanocomposite: Structure, …
2017年11月1日 · X-ray photoelectron spectroscopy (XPS) measurements were performed on an ESCALAB-250 to characterize the valence of carbon atoms on the surface of the …
Noble-metal-free Ni3C cocatalysts decorated CdS nanosheets for …
2018年7月5日 · X-ray photoelectron spectroscopy (XPS) was employed to further analyze the surface elemental components and oxidation states of the bare CdS NSs and CdS-1.0%Ni 3 C …
XPS spectra of the Ni–C catalysts. (a) XPS spectra of Ni 2p …
(a) XPS spectra of Ni 2p peaks of Ni@C and HCl-Ni@C. (b) XPS spectrum of Ni 2p peaks of A-Ni–C. The peaks at 852.8 eV and 853.7 eV are assigned to Ni0 and Ni2+, respectively. The …
We investigated here crystalline nickel carbide nanoparticles (NPs) as catalyst in colloidal suspension for hydrogenation reactions under H. 2. (7 bar) and below 100 °C. The Ni. 3. C …
High-Performance Hydrogen Evolution Electrocatalyst Derived from Ni3C ...
2016年12月22日 · As a novel hydrogen evolution reaction (HER) catalyst, the Ni 3 C@PCN shows superior catalytic activity with an onset potential of −65 mV, an overpotential of 262 mV …
厦门大学Xiaoqing Huang和常熟理工学院Hongbo Geng课题组--用 …
作为一种有前途的非铂族金属HOR催化剂，Ni/Ni3C的强界面协同作用显著提高了其在碱性介质中的HOR性能，活性与商业Pt/C催化剂相当，并表现出优异的CO耐受性。 机理研究表明，界面 …
Simple Synthesis and Characterization of Shell-Thickness ... - MDPI
2022年5月10日 · The synthesis mechanism of the Ni/Ni3C core-shell nanoparticles was proposed through X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and transmission …
In Situ SR-XPS Observation of Ni-Assisted Low-Temperature
2015年10月26日 · Angle-resolved, synchrotron-radiation X-ray photoemission spectroscopy (SR-XPS) results show that the stacking order is, from the surface to the bulk, Ni carbides (Ni 3 …
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