Hydrothermal synthesis of well-crystallized CuO hierarchical structures and their direct application in high performance lithium-ion battery electrodes without further calcination

Wang, Hequan; Liang, Tangwen; Yu, Xia; Zhao, Wenxia; Xu, Rong; Wang, Donghai; Liu, Yong

doi:10.1039/c6ra20701d

Cited by 7 publications

(4 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From the solvothermal method, the edge energies of 0.10 CuMn x O y _H, 0.15 CuMn x O y _H, 0.20 CuMn x O y _H, and 0.25 CuMn x O y _H were 8983.3, 8983.3, 8983.2, and 8983.1 eV, respectively. When looking at the feature as well as the edge energy, Cu in 0.10–0.25 CuMnO x _H also corresponded to the phase of CuO (Figure 7(b)), corresponding to the previous studies [103–109] …”

Section: Resultssupporting

confidence: 81%

See 1 more Smart Citation

Cu‐ and Fe‐Incorporated Manganese Oxides (Mn_xO_y) as Cathodic Catalysts for Hydrogen Peroxide Reduction (HPR) and Oxygen Reduction (OR) in Micro‐direct Methanol Fuel Cells

et al. 2022

View full text Add to dashboard Cite

Improving manganese oxides as cathodic catalysts in direct methanol/hydrogen peroxide fuel cells by incorporation of Cu and Fe to promote oxygen reduction (OR) and hydrogen peroxide reduction (HPR) is reported. The Cu‐incorporated and Fe‐incorporated MnxOy were prepared by impregnation and solvothermal processes. From XRD, XPS, and XAS analyses, the obtained MnxOy consisted of MnO2 and mixed phases of Mn3O4 and Mn2O3 from impregnation and solvothermal methods, respectively. The Cu‐incorporated and Fe‐incorporated MnxOy included CuO and Fe2O3, respectively, through both methods. Addition of Cu and Fe decreased the BET surface area and increased the pore sizes as compared to the pristine MnO2. With the Fe : Mn molar ratio of 0.20 : 1, the Fe‐incorporated MnxOy from the solvothermal method presented the highest cathodic peaks under the cyclic voltammogram of HPR and OR at around 0.59 V of 11.59 mA cm−2 and −0.59 V of −12.33 mA cm−2, respectively. Compared to the Cu‐incorporated ones, the highest HPR peak at 0.68 V of 9.20 mA cm−2 and the highest OR peak at −0.59 V of −6.99 mA cm−2 were obtained from the Cu‐incorporated MnxOy prepared through the solvothermal method at the Cu : Mn molar ratio of 0.15 : 1. Incorporating Cu or Fe into MnO2 brought the improvement of electrocatalytic activity for HPR and OR. The Cu‐incorporated and Fe‐incorporated MnxOy from both methods showed a higher power density of μ‐DMFC than the pristine MnO2.

show abstract

Section: Resultssupporting

confidence: 81%

“…When looking at the feature as well as the edge energy, Cu in 0.10-0.25 CuMnO x _H also corresponded to the phase of CuO (Figure 7(b)), corresponding to the previous studies. [103][104][105][106][107][108][109]…”

Section: Cu-xanesmentioning

confidence: 99%

Cu‐ and Fe‐Incorporated Manganese Oxides (Mn_xO_y) as Cathodic Catalysts for Hydrogen Peroxide Reduction (HPR) and Oxygen Reduction (OR) in Micro‐direct Methanol Fuel Cells

et al. 2022

View full text Add to dashboard Cite

show abstract

“…14 Among the methodologies, the hydrothermal synthesis is a favorite strategy to generate different structures of CuO owing to its green/simple reaction system with convenient post-treatment. 15,16 Mostly, the hydrothermal synthesis of CuO with diverse nanostructures is commonly done via a two-step crystalline process. 17−19 First, the intermediate phases, especially the Cu(OH) 2 precipitation, are formed from a cupric salt precursor in alkaline media.…”

Section: ■ Introductionmentioning

confidence: 99%

“…To modify the properties of CuO, numerous synthetic techniques have been developed to design nano- and microstructures of CuO with different morphologies and dimensions, such as nanoparticles, nanotubes, nanowires, nanoplates, and more complex flower-like, sphere-like, urchin-like, and three-dimensional (3D) hierarchical structures . Among the methodologies, the hydrothermal synthesis is a favorite strategy to generate different structures of CuO owing to its green/simple reaction system with convenient post-treatment. , …”

Section: Introductionmentioning

confidence: 99%

Stepwise Growth of CuO via Transformation of Cu₂(OH)₃Br Intermediate in Aqueous Solution of Long-Alkyl-Chain Copper Salt

Cui

Song

Ouyang³

et al. 2020

Crystal Growth & Design

View full text Add to dashboard Cite

Uniform CuO microspheres were successfully synthesized through a simply surfactant-free hydrothermal synthesis assisted by a soluble long-alkyl-chain tetraalkylammonium carboxylic copper salt. During the synthetic procedure, a botallackite-type Cu2(OH)3Br intermediate with 3D bamboo-leaf-like structure was obtained by careful time-controlled experiments. Subsequently, the intermediate was converted into CuO spheres via a solid-phase transformation competed with a dissolution–renucleation process. Additionally, ion-adjusted experiments were manipulated to analyze the effects on CuO morphologies of the various of ionic groups involved in the long-alkyl-chain tetraalkylammonium carboxylate. It confirms that the organic copper salt precursor used in this work not only supplies a constant copper source for crystal growth of CuO but also plays an important role in the spherical architecture building as a self-surfactant agent.

show abstract

Fabrication of hierarchical CuO architectures displaying the (111) facets‐enhanced superior fenton‐like degradation of organic dyes

Ding

et al. 2021

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

Hydrothermal synthesis of well-crystallized CuO hierarchical structures and their direct application in high performance lithium-ion battery electrodes without further calcination

Abstract: As an energy-saving strategy, well-crystallized CuO hierarchical structures are synthesized by hydrothermal method and applied in Li-ion batteries without calcination.

Cited by 7 publications

References 38 publications

Cu‐ and Fe‐Incorporated Manganese Oxides (Mn_xO_y) as Cathodic Catalysts for Hydrogen Peroxide Reduction (HPR) and Oxygen Reduction (OR) in Micro‐direct Methanol Fuel Cells

Cu‐ and Fe‐Incorporated Manganese Oxides (Mn_xO_y) as Cathodic Catalysts for Hydrogen Peroxide Reduction (HPR) and Oxygen Reduction (OR) in Micro‐direct Methanol Fuel Cells

Stepwise Growth of CuO via Transformation of Cu₂(OH)₃Br Intermediate in Aqueous Solution of Long-Alkyl-Chain Copper Salt

Fabrication of hierarchical CuO architectures displaying the (111) facets‐enhanced superior fenton‐like degradation of organic dyes

Contact Info

Product

Resources

About

Hydrothermal synthesis of well-crystallized CuO hierarchical structures and their direct application in high performance lithium-ion battery electrodes without further calcination

Abstract: As an energy-saving strategy, well-crystallized CuO hierarchical structures are synthesized by hydrothermal method and applied in Li-ion batteries without calcination.

Cited by 7 publications

References 38 publications

Cu‐ and Fe‐Incorporated Manganese Oxides (MnxOy) as Cathodic Catalysts for Hydrogen Peroxide Reduction (HPR) and Oxygen Reduction (OR) in Micro‐direct Methanol Fuel Cells

Cu‐ and Fe‐Incorporated Manganese Oxides (MnxOy) as Cathodic Catalysts for Hydrogen Peroxide Reduction (HPR) and Oxygen Reduction (OR) in Micro‐direct Methanol Fuel Cells

Stepwise Growth of CuO via Transformation of Cu2(OH)3Br Intermediate in Aqueous Solution of Long-Alkyl-Chain Copper Salt

Fabrication of hierarchical CuO architectures displaying the (111) facets‐enhanced superior fenton‐like degradation of organic dyes

Contact Info

Product

Resources

About

Cu‐ and Fe‐Incorporated Manganese Oxides (Mn_xO_y) as Cathodic Catalysts for Hydrogen Peroxide Reduction (HPR) and Oxygen Reduction (OR) in Micro‐direct Methanol Fuel Cells

Cu‐ and Fe‐Incorporated Manganese Oxides (Mn_xO_y) as Cathodic Catalysts for Hydrogen Peroxide Reduction (HPR) and Oxygen Reduction (OR) in Micro‐direct Methanol Fuel Cells

Stepwise Growth of CuO via Transformation of Cu₂(OH)₃Br Intermediate in Aqueous Solution of Long-Alkyl-Chain Copper Salt