2023年8月15日 · The XRD pattern (Fig. 3 d) only show big diffraction peaks, which is in line with the TEM image and further supports the amorphous nature of the CoOx clusters in it. The 23° diffraction peak showed that pyrolysis results in the formation of amorphous carbon (Y. Wang et …

2024年2月12日 · The structural properties of the as-prepared catalysts were verified by X-ray diffraction (XRD), as shown in Figure 1a. The CoO x sample is composed of CoO and Co 3 O 4 . When 10% (molar ratio) of Ce is introduced during synthesis, there is no obvious shift in the XRD peaks; rather, CeO 2 is present as a separate phase, thus the sample is ...

The powder XRD patterns of CoP-p and a-CoOx-p confirmed the presence of crystalline CoP phase (JCPDS No. 29-0497) and amorphous CoOx structure, respectively ( Figure S13a, Supporting Informa-...

2023年6月15日 · Results reveal that the atomic layering of 10-nm CoO x on the surface of MnCo 2 S 4 nanoneedles enhances the specific capacity (to 628C/g (1396F/g)) at a current density of 3 A/g compared to those of pristine MnCo 2 S 4 and other atomic layer-deposited materials owing to the low charge transfer resistance and high surface active sites of the opt...

本研究开发了一种掺杂Co/CoOx纳米颗粒（NPs）的新型独立式氮掺杂 碳纳米纤维 （CNF）电极材料，以通过非均相电芬顿反应从废水中去除酸性橙7（AO7；羊毛染料）。

The sensor is prepared by electrodeposition of cobalt oxides (CoOx) on a glassy carbon electrode modified with carboxylated single-walled carbon nanotubes (SWCNT).

Strategies to improve CO2 conversion efficiency are summarized, including heterojunction, ion doping, defects, sensitization and morphology control, which can inspire the future improvement in...

2022年12月15日 · Herein, cobalt oxide (CoO x) nanoparticles, by an incipient-wetness impregnation method, were successfully supported on the surface of nitrogen-doped porous carbon homogeneously distributed ultrafine α-MoC nanoparticles with nitrogen-doped porous carbon (α-MoC/NC) and worked as efficient electrocatalysts for water oxidation.

2019年12月5日 · Cobalt oxide (CoOx) nanoparticles were synthesized onto oxygenated carbon nanotubes (FCNTs) using a simple cyclic voltammetry technique, and used as an electrocatalyst for oxygen reduction reaction (ORR) in alkaline media. The electrodeposition process was optimized by controlling the deposition cycles to achieve the highest catalytic activity.

2020年11月18日 · X-ray diffraction (XRD) is conducted to determine the composition and crystal structure of the catalyst. The powder sample is obtained from the NF substrate by ultrasonication. The XRD pattern of CoO x –RuO 2 powder is displayed in Figure 2a.