2023年1月1日 · To develop ideal biomaterials with appropriate mechanical properties to enhance the therapeutic potential of stem cell research in tissue engineering applications, in this work, C-Co 3 O 4 nanohybrids were embedded in the electrospinning PCL fibrous scaffolds in the hope of motivating the mechanotransduction of stem cells for promoting their ...

2020年7月15日 · To further enhance the peroxymonosulfate (PMS) activation performance, novel Co 3 O 4 hierarchical porous nanosheets composed of 5–10-nm ultrafine nanoparticles (Co3 O 4 -MC) are successfully fabricated by calcining corn straw (CS) biotemplates coated with a metal–organic framework (MOF)–Co precursor.

2022年12月14日 · Both AC HAADF-STEM characterization and XAS technique confirm that isolated Ir single atoms are homogeneously dispersed in the Co 3 O 4 host material.

HAADF-STEM追球表征和XAS技术证实，分离的Ru单原子均匀地分散在Co3O4的阳离子Cooct晶格中。 更重要的是，在酸性介质中OER测量表明，加入微量Ru原子后，制备的Co3O4的过电位从400 mV急剧下降到265 mV，稳定性大大提高。

2011年3月22日 · In this study, we investigated the morphology of Co3O4 nanocrystals using periodic PW91 and PW91+U density functional calculations and Wulff construction. Theoretical investigations were combined w...

2021年9月1日 · Co 3 O 4 @C-500 exhibits an excellent cycling stability of 100% after 10,000 cycles. Nanosized transition metal oxides (TMOs) are one class of the most potential candidates for supercapacitors due to their short electron transport channels and reversible redox reactions.

In this study, we report a Co 3 O 4 nanoparticle (NP) catalyst synthesized by a hydrothermal method. Furthermore, Ru was successfully incorporated into the Co 3 O 4 NPs (Ru x Co 3–x O 4 NPs) for further improvement of catalytic performance in chlorine generation.

2020年6月26日 · Benefiting from the structural and compositional advantages, the obtained Fe-doped Co 3 O 4 hierarchical NPs manifest superior electrocatalytic performance for OER with an overpotential of 262 mV at 10 mA cm −2, a Tafel slope of 43 mV dec −1, and excellent stability even at a high current density of 100 mA cm −2 for 50 h.

HAADF-STEM images of (a–d) Co3O4, (e–h) HT-LiCoO2 and (i–k) LT-LiCoO2 viewed down the zone axis, showing the surface structure at the (a,e,i) {001} plane and (b,f) {111} plane. These surface...

2021年4月15日 · HAADF-STEM图像进一步揭示了Co 3 O 4 @C-500的纳米片特征，对应的元素映射结果表明C、Co、O元素分布均匀。 相比之下,HAADF-STEM和Co@O元素映射可以明显看出碳的分布没有规律,与其HAADF-STEM的形状不一致，这表明直接氧化的过程中,由于Co x 的释放,碳骨架遭到破坏，未能 ...