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One-step synthesis of recoverable CuCo

Tongzhou Lu, Yongzheng Zhang, Chun Cheng, Yanbin Wang, Yongming Zhu

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4,   Pages 595-604 doi: 10.1007/s11705-019-1818-z

Abstract: A facile one-step hydrothermal method has been adopted to directly synthesize the CuCo S material on the surface of Ni foam. Due to the relatively large specific surface area and wide pore size distribution, the CuCo S material not only effectively increases the reactive area, but also accommodates more side reaction products to avoid the difficulty of mass transfer. When evaluated as anode for Li-ion batteries, the CuCo S material exhibits excellent electrochemical performance including high discharge capacity, outstanding cyclic stability and good rate performance. At the current density of 200 mA·g , the CuCo S material shows an extremely high initial discharge capacity of 2510 mAh·g , and the cycle numbers of the material even reach 83 times when the discharge capacity is reduced to 500 mAh·g . Furthermore, the discharge capacity can reach 269 mAh·g at a current of 2000 mA·g . More importantly, when the current density comes back to 200 mA·g , the discharge capacity could be recovered to 1436 mAh·g , suggesting an excellent capacity recovery characteristics.

Keywords： copper cobalt sulfide     recoverability     one-step hydrothermal method     anode material     Li-ion battery    

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Graphene-reinforced metal-organic frameworks derived cobalt sulfide/carbon nanocomposites as efficient

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6,   Pages 1487-1499 doi: 10.1007/s11705-021-2085-3

Abstract: Developing cost-effective electrocatalysts for oxygen reduction reaction (ORR), oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is vital in energy conversion and storage applications. Herein, we report a simple method for the synthesis of graphene-reinforced CoS/C nanocomposites and the evaluation of their electrocatalytic performance for typical electrocatalytic reactions. Nanocomposites of CoS embedded in N, S co-doped porous carbon and graphene (CoS@C/Graphene) were generated via simultaneous sulfurization and carbonization of one-pot synthesized graphite oxide-ZIF-67 precursors. The obtained CoS@C/Graphene nanocomposites were characterized by X-ray diffraction, Raman spectroscopy, thermogravimetric analysis-mass spectroscopy, scanning electronic microscopy, transmission electronic microscopy, X-ray photoelectron spectroscopy and gas sorption. It is found that CoS nanoparticles homogenously dispersed in the in situ formed N, S co-doped porous carbon/graphene matrix. The CoS@C/10Graphene composite not only shows excellent electrocatalytic activity toward ORR with high onset potential of 0.89 V, four-electron pathway and superior durability of maintaining 98% of current after continuously running for around 5 h, but also exhibits good performance for OER and HER, due to the improved electrical conductivity, increased catalytic active sites and connectivity between the electrocatalytic active CoS and the carbon matrix. This work offers a new approach for the development of novel multifunctional nanocomposites for the next generation of energy conversion and storage applications.

Keywords： MOF derivative     graphene     electrocatalyst     oxygen reduction reaction     oxygen evolution reaction     hydrogen evolution reaction    

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Recent advances of small-molecule fluorescent probes for detecting biological hydrogen sulfide

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 1,   Pages 34-63 doi: 10.1007/s11705-021-2050-1

Abstract: groups: H2S reducibility-based probes, H2S nucleophilicity-based probes, and metal sulfide

Keywords： hydrogen sulfide     fluorescent probe     reducibility     nucleophilicity     copper sulfide precipitate     hydrogen    

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Structural and optical properties of nanostructured copper sulfide semiconductor synthesized in an industrial

Marcela Achimovičová, Erika Dutková, Erika Tóthová, Zdenka Bujňáková, Jaroslav Briančin, Satoshi Kitazono

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 1,   Pages 164-170 doi: 10.1007/s11705-018-1755-2

Abstract:

Chalcogenide nanostructured semiconductor, copper sulfide (CuS) was prepared from copper and sulfur

Keywords： copper sulfide     industrial mechanochemical synthesis     thermal analysis     optical properties    

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Meeting Future Challenge in Copper Industry——Considerations on Treatment of Copper Sulfide Concentrate

Zhu Zuze

Strategic Study of CAE 2000, Volume 2, Issue 2,   Pages 87-90

Abstract:

A brief review of the advance of copper smelting technology and the price fluctuations of copper productsindicate that the competition of copper market depends upon the production cost relying on metallurgyIn order to ensure the smooth development of the copper industry in China and win competition in theworld, we must persist in domestic r & D and incorporation with foreign technology for copper smelting

Keywords： Copper industry     copper sulfide concentrate     low cost    

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Phosphorus-doped Ni–Co sulfides connected by carbon nanotubes for flexible hybrid supercapacitor

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 5,   Pages 491-503 doi: 10.1007/s11705-022-2257-9

Abstract: As promising electrode materials for supercapacitors, nickel-cobalt bimetallic sulfides render the advantagesunsatisfactory performance of low specific capacity, low rate capability, and fast capacity loss exist in Ni–Co sulfideHerein, we rationally regulate phosphorus-doped nickel–cobalt sulfides (P-NCS) to enhance the electrochemical

Keywords： cobalt nickel sulfide     phosphorus-doping     hybrid supercapacitor     carbon nanotube     density functional    

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Silica-based nanoarchitecture for an optimal combination of photothermal and chemodynamic therapy functions of CuS cores with red emitting carbon dots

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 2144-2155 doi: 10.1007/s11705-023-2362-4

Abstract: This study introduces multifunctional silica nanoparticles that exhibit both high photothermal and chemodynamic therapeutic activities, in addition to luminescence. The activity of the silica nanoparticles is derived from their plasmonic properties, which are a result of infusing the silica nanoparticles with multiple Cu2–xS cores. This infusion process is facilitated by a recoating of the silica nanoparticles with a cationic surfactant. The key factors that enable the internal incorporation of the Cu2–xS cores and the external deposition of red-emitting carbon dots are identified. The Cu2–xS cores within the silica nanoparticles exhibit both self-boosting generation of reactive oxygen species and high photothermal conversion efficacy, which are essential for photothermal and chemodynamic activities. The silica nanoparticles’ small size (no more than 70 nm) and high colloidal stability are prerequisites for their cell internalization. The internalization of the red-emitting silica nanoparticles within cells is visualized using fluorescence microscopy techniques. The chemodynamic activity of the silica nanoparticles is associated with their dark cytotoxicity, and the mechanisms of cell death are evaluated using an apoptotic assay. The photothermal activity of the silica nanoparticles is demonstrated by significant cell death under near-infrared (1064 nm) irradiation.

Keywords： copper sulfide nanoparticles     chemodynamic therapy     photothermal therapy     carbon dots     silica nanoparticles    

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extracellular polymeric substances from activated sludge on the aggregation kinetics of silver and silver sulfide

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1450-2

Abstract:

• The NPs aggregation in the electrolyte solution is consistent with the DLVO theory.

Keywords： Silver nanoparticles     Silver sulfide nanoparticles     Extracellular polymeric substances     Aggregation kinetics    

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Synthesis and electrocatalytic property of cubic and spherical nanoparticles of cobalt platinum alloys

Xiaowei TENG, Hong YANG,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 1,   Pages 45-51 doi: 10.1007/s11705-009-0308-0

Abstract: Both cubic and spherical CoPt nanoparticles were made using cobalt carbonyl and platinum 2,4-pentanedionateEffects of heterogeneous species on shape of the CoPt nanoparticles were examined by replacing cobaltthat the formation of different shapes of CoPt particles could be attributed to the affinity between cobalt

Keywords： spherical     2     4-pentanedionate     adamantanecarboxylic     acetylacetonate     electrocatalytic    

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Cobalt nanoparticle decorated N-doped carbons derived from a cobalt covalent organic framework for oxygen

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6,   Pages 1550-1560 doi: 10.1007/s11705-021-2104-4

Abstract: In this work, cobalt nanoparticle decorated N-doped carbons (Co@NC) are synthesized by the pyrolysisof a cobalt covalent organic framework under an inert atmosphere.compared to N-doped carbon without the addition of Co nanoparticles, indicating the important role of cobalt

Keywords： cobalt embedment     N-doped carbons     covalent organic framework     oxygen reduction     Zn-air battery    

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Enhanced electrochemical performance of CoNiS@TiCT electrode material through doping of cobalt element

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1440-1449 doi: 10.1007/s11705-023-2333-9

Abstract: was successfully prepared using a one-step hydrothermal method under the in-situ doping of the cobaltThe effects of in-situ doping of the cobalt element on the micromorphology and electrochemicalAfter in-situ doping of the cobalt element, NiS with a needle-like structure was converted intoThis result indicated that the in-situ doping of the cobalt element promoted the electrochemical

Keywords： MXene     supercapacitor     cobalt doping     structure characterization     electrochemical performance    

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A potentiometric cobalt-based phosphate sensor based on screen-printing technology

Lei ZHU,Xiaohong ZHOU,Hanchang SHI

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 945-951 doi: 10.1007/s11783-013-0615-z

Abstract: A potentiometric cobalt-based screen-printing sensor was fabricated by electroplating cobalt on the surfaceThe cobalt-based phosphate sensor showed a phosphate-selective potential response in the range of 10

Keywords： phosphate     cobalt     screen-printing technology     electroplate     wastewater    

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Room temperature oxidation of acetone by ozone over alumina-supported manganese and cobalt mixed oxides

Mehraneh Ghavami, Mostafa Aghbolaghy, Jafar Soltan, Ning Chen

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 937-947 doi: 10.1007/s11705-019-1900-6

Abstract: In this study, a series of alumina supported single and mixed manganese and cobalt oxides catalysts wereThe manganese and cobalt single and mixed oxides catalysts of the formula Mn10%-CoX and Co10%-MnX (where

Keywords： ozone     VOC     manganese oxides     cobalt oxides     alumina support    

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Control of hydrogen sulfide emissions using autotrophic denitrification landfill biocovers: engineering

Daoroong SUNGTHONG, Debra R. REINHART

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 149-158 doi: 10.1007/s11783-011-0324-4

Abstract: Hydrogen sulfide (H S) emitted from construction and demolition waste landfills has received increasing

Keywords： hydrogen sulfide emissions     construction and demolition waste     autotrophic denitrification     landfill biocovers    

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Therapeutic application of hydrogen sulfide donors: the potential and challenges

Dan Wu,Qingxun Hu,Yizhun Zhu

Frontiers of Medicine 2016, Volume 10, Issue 1,   Pages 18-27 doi: 10.1007/s11684-015-0427-6

Abstract:

Hydrogen sulfide (H2S), a colorless gas smelling of rotten egg, has long been considered

Keywords： hydrogen sulfide     cardiovascular     cancer     hypertension    

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Title Author Date Type Operation

One-step synthesis of recoverable CuCo

Tongzhou Lu, Yongzheng Zhang, Chun Cheng, Yanbin Wang, Yongming Zhu

Journal Article

Graphene-reinforced metal-organic frameworks derived cobalt sulfide/carbon nanocomposites as efficient

Journal Article

Recent advances of small-molecule fluorescent probes for detecting biological hydrogen sulfide

Journal Article

Structural and optical properties of nanostructured copper sulfide semiconductor synthesized in an industrial

Marcela Achimovičová, Erika Dutková, Erika Tóthová, Zdenka Bujňáková, Jaroslav Briančin, Satoshi Kitazono

Journal Article

Meeting Future Challenge in Copper Industry——Considerations on Treatment of Copper Sulfide Concentrate

Zhu Zuze

Journal Article

Phosphorus-doped Ni–Co sulfides connected by carbon nanotubes for flexible hybrid supercapacitor

Journal Article

Silica-based nanoarchitecture for an optimal combination of photothermal and chemodynamic therapy functions of CuS cores with red emitting carbon dots

Journal Article

extracellular polymeric substances from activated sludge on the aggregation kinetics of silver and silver sulfide

Journal Article

Synthesis and electrocatalytic property of cubic and spherical nanoparticles of cobalt platinum alloys

Xiaowei TENG, Hong YANG,

Journal Article

Cobalt nanoparticle decorated N-doped carbons derived from a cobalt covalent organic framework for oxygen

Journal Article

Enhanced electrochemical performance of CoNiS@TiCT electrode material through doping of cobalt element

Journal Article

A potentiometric cobalt-based phosphate sensor based on screen-printing technology

Lei ZHU,Xiaohong ZHOU,Hanchang SHI

Journal Article

Room temperature oxidation of acetone by ozone over alumina-supported manganese and cobalt mixed oxides

Mehraneh Ghavami, Mostafa Aghbolaghy, Jafar Soltan, Ning Chen

Journal Article

Control of hydrogen sulfide emissions using autotrophic denitrification landfill biocovers: engineering

Daoroong SUNGTHONG, Debra R. REINHART

Journal Article

Therapeutic application of hydrogen sulfide donors: the potential and challenges

Dan Wu,Qingxun Hu,Yizhun Zhu

Journal Article