Mass production of Co3O4@CeO2 core@shell nanowires for catalytic CO oxidation

Zhen, Jiangman; Wang, Xiao; Liu, Dapeng; Wang, Zhuo; Li, Junqi; Wang, Fan; Wang, Yinghui; Zhang, Hongjie

doi:10.1007/s12274-015-0704-3

Cited by 48 publications

(28 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our group has continuously focused on the development of clean and efficient synthesis of noble metal@CeO 2 core@shell nanostructures . Inspired by our gradual advances, we here report a new modified autoredox reaction combined with the seeded growth strategy to cleanly obtain CeO 2 ‐encapsulated asymmetric Pd@Ag core@shell metal nanostructures.…”

Section: Methodsmentioning

confidence: 99%

Achieving the Trade‐Off between Selectivity and Activity in Semihydrogenation of Alkynes by Fabrication of (Asymmetrical Pd@Ag Core)@(CeO₂ Shell) Nanocatalysts via Autoredox Reaction

Song

Pan

et al. 2016

Advanced Materials

Self Cite

View full text Add to dashboard Cite

(Asymmetrical Pd@Ag core)@(CeO shell) nanostructures are successfully fabricated via a clean and facile modified autoredox reaction by the preaddition of Pd seeds in the growth solution. In a subsequent catalytic test, it is found that the as-obtained bimetallic core@shell nanoparticles exhibit excellent catalytic performance in semihydrogenation of alkynes. The trade-off between selectivity and activity is well realized.

show abstract

Section: Methodsmentioning

confidence: 99%

Achieving the Trade‐Off between Selectivity and Activity in Semihydrogenation of Alkynes by Fabrication of (Asymmetrical Pd@Ag Core)@(CeO₂ Shell) Nanocatalysts via Autoredox Reaction

Song

Pan

et al. 2016

Advanced Materials

Self Cite

View full text Add to dashboard Cite

show abstract

“…So far, a remarkable process has been developed for the synthesis of CeO 2 -based composite oxides, including CeO 2 –CuO x [13], CeO 2 –ZnCo 2 O 4 [14], CeO 2 –CoO x [15], CeO 2 –MnO x [16], CeO 2 –ZnO [17], CeO 2 –Fe 2 O 3 [18], and CeO 2 –ZrO 2 systems [19]. Taking the CeO 2 –CuO catalyst as a typical example, the improved catalytic activity is closely related to the synergistic interaction between copper and ceria, which promotes the exchange of charges between Ce 4+ /Ce 3+ and Cu 2+ /Cu + and leads to faster oxidation and reduction than that of the corresponding independent forms.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of CeO₂–MO_x (M = Cu, Co, Ni) composite yolk–shell nanospheres with enhanced catalytic properties for CO oxidation

Liu¹,

Shi²,

Cao³

et al. 2017

Beilstein J. Nanotechnol.

View full text Add to dashboard Cite

CeO2–MOx (M = Cu, Co, Ni) composite yolk–shell nanospheres with uniform size were fabricated by a general wet-chemical approach. It involved a non-equilibrium heat-treatment of Ce coordination polymer colloidal spheres (Ce-CPCSs) with a proper heating rate to produce CeO2 yolk–shell nanospheres, followed by a solvothermal treatment of as-synthesized CeO2 with M(CH3COO)2 in ethanol solution. During the solvothermal process, highly dispersed MOx species were decorated on the surface of CeO2 yolk–shell nanospheres to form CeO2–MOx composites. As a CO oxidation catalyst, the CeO2–MOx composite yolk–shell nanospheres showed strikingly higher catalytic activity than naked CeO2 due to the strong synergistic interaction at the interface sites between MOx and CeO2. Cycling tests demonstrate the good cycle stability of these yolk–shell nanospheres. The initial concentration of M(CH3COO)2·xH2O in the synthesis process played a significant role in catalytic performance for CO oxidation. Impressively, complete CO conversion as reached at a relatively low temperature of 145 °C over the CeO2–CuOx-2 sample. Furthermore, the CeO2–CuOx catalyst is more active than the CeO2–CoOx and CeO2–NiO catalysts, indicating that the catalytic activity is correlates with the metal oxide. Additionally, this versatile synthesis approach can be expected to create other ceria-based composite oxide systems with various structures for a broad range of technical applications.

show abstract

“…Thec onfined growth of CeO x NPs on the hollow CoS surface was attributed to the copious amino groups on the CoS/HMT surface,w hich served as nucleation sites and dispersing agent and then leading to uniform deposition of CeO x on CoS under thermal reduction. [16] As shown in Theextra diffraction spots (see circles) are clearly visible for crystalline CoS,w hich cannot be detected from XRD owing to the presence of tiny grains. [11b, 17] Thegrain boundaries with abundant defects,such as stacking faults and stains,can serve as active sites in the water oxidation process.F urthermore, the non-stoichiometry generated in the template interface promotes the formation of defects and disorders to boost OER.…”

mentioning

confidence: 99%

MOF‐Derived Hollow CoS Decorated with CeO_x Nanoparticles for Boosting Oxygen Evolution Reaction Electrocatalysis

et al. 2018

View full text Add to dashboard Cite

Transition-metal sulfides (TMSs) have emerged as important candidates for oxygen evolution reaction (OER) electrocatalysts. Now a hybrid nanostructure has been decorated with CeO nanoparticles on the surface of ZIF-67-derived hollow CoS through in situ generation. Proper control of the amount of CeO on the surface of CoS can achieve precise tuning of Co /Co ratio, especially for the induced defects, further boosting the OER activity. Meanwhile, the formation of protective CeO thin layer effectively inhibits the corrosion by losing cobalt ion species from the active surface into the solution. It is thus a rare example of a hybrid hetero-structural electrocatalyst with CeO NPs to improve the performance of the hollow TMS nanocage.

show abstract

Mass production of Co3O4@CeO2 core@shell nanowires for catalytic CO oxidation

Cited by 48 publications

References 41 publications

Achieving the Trade‐Off between Selectivity and Activity in Semihydrogenation of Alkynes by Fabrication of (Asymmetrical Pd@Ag Core)@(CeO₂ Shell) Nanocatalysts via Autoredox Reaction

Achieving the Trade‐Off between Selectivity and Activity in Semihydrogenation of Alkynes by Fabrication of (Asymmetrical Pd@Ag Core)@(CeO₂ Shell) Nanocatalysts via Autoredox Reaction

Fabrication of CeO₂–MO_x (M = Cu, Co, Ni) composite yolk–shell nanospheres with enhanced catalytic properties for CO oxidation

MOF‐Derived Hollow CoS Decorated with CeO_x Nanoparticles for Boosting Oxygen Evolution Reaction Electrocatalysis

Contact Info

Product

Resources

About

Mass production of Co3O4@CeO2 core@shell nanowires for catalytic CO oxidation

Cited by 48 publications

References 41 publications

Achieving the Trade‐Off between Selectivity and Activity in Semihydrogenation of Alkynes by Fabrication of (Asymmetrical Pd@Ag Core)@(CeO2 Shell) Nanocatalysts via Autoredox Reaction

Achieving the Trade‐Off between Selectivity and Activity in Semihydrogenation of Alkynes by Fabrication of (Asymmetrical Pd@Ag Core)@(CeO2 Shell) Nanocatalysts via Autoredox Reaction

Fabrication of CeO2–MOx (M = Cu, Co, Ni) composite yolk–shell nanospheres with enhanced catalytic properties for CO oxidation

MOF‐Derived Hollow CoS Decorated with CeOx Nanoparticles for Boosting Oxygen Evolution Reaction Electrocatalysis

Contact Info

Product

Resources

About

Achieving the Trade‐Off between Selectivity and Activity in Semihydrogenation of Alkynes by Fabrication of (Asymmetrical Pd@Ag Core)@(CeO₂ Shell) Nanocatalysts via Autoredox Reaction

Achieving the Trade‐Off between Selectivity and Activity in Semihydrogenation of Alkynes by Fabrication of (Asymmetrical Pd@Ag Core)@(CeO₂ Shell) Nanocatalysts via Autoredox Reaction

Fabrication of CeO₂–MO_x (M = Cu, Co, Ni) composite yolk–shell nanospheres with enhanced catalytic properties for CO oxidation

MOF‐Derived Hollow CoS Decorated with CeO_x Nanoparticles for Boosting Oxygen Evolution Reaction Electrocatalysis