Mostrando 1,201 - 1,220 Resultados de 100,426 Para Buscar '"carbón"', tiempo de consulta: 0.45s Limitar resultados
  1. 1201
    “…[Image: see text] We demonstrate a new approach for the unzipping of single-walled carbon nanotube (SWCNT) in an aqueous solution using the transition metal complex PdCl(4)(2–) as a sacrificial chemical scissor and the growth of graphitic-carbon-coated Pd nanoparticles for the electrocatalytic oxidation of formic acid. …”
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  2. 1202
    “…[Image: see text] In this study, Liquidambar formosana tree leaves have been used as a renewable biomass precursor for preparing porous carbons (PCs). The PCs were produced by pyrolysis of natural waste of leaves after 10% KOH activation under a nitrogen atmosphere and characterized by a variety of state-of-the-art techniques. …”
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  3. 1203
  4. 1204
    “…Interpretation of the data can be found in “Carbon input manipulations affecting microbial carbon metabolism in temperate forest soils – a comparative study between broadleaf and coniferous plantations” (Wang et al., 2019). …”
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  5. 1205
    “…In this study, a 3D needled carboncarbon (C/C) composite structure was examined using X-ray tomography and scanning electron microscopy (SEM). …”
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  6. 1206
    “…Results show that the optimum carbon-fiber content of carbon-fiber RPC is 0.75% under the natural, standard, and compound curing conditions. …”
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  7. 1207
  8. 1208
  9. 1209
    “…In the framework of this study, carbon fiber and nickel coated carbon fiber–silica aerogel nanocomposites were proposed as effective electromagnetic shielding material. …”
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  10. 1210
    “…BACKGROUND AND AIMS: This paper was primarily devoted to understand the interactions of soil aggregates, organic carbon (C) and carbon cycle enzymes in aggregates under different fertilization managements, aiming to identify the effects of organic and inorganic fertilizer amendments on soil organic C accumulation and the activities of carbon cycle enzymes within aggregates in Vertisol. …”
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  11. 1211
    “…Herein, a novel type of the anode electrode was developed using powdered activated carbon (PAC) applied onto the carbon fibre scaffold in the ceramic MFC stack to achieve superior electrochemical performance during 500 days of operation. …”
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  12. 1212
  13. 1213
    “…Our study aimed to evaluate and compare biochemical effects caused by the influence of different types of carbon nanotubes, carbon nanofibers, and silica nanotubes on four marine microalgae species. …”
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  14. 1214
    “…In this study, β-cyclodextrin was covalently bonded on carbon fibers and its influence through host-guest complex formation was analyzed. …”
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  15. 1215
  16. 1216
    “…The results obtained herein show that the double-stranded helicates are effective catalysts for converting both terminal and non-terminal epoxides into their corresponding cyclic carbonates. The striking feature of this catalytic protocol lies in demonstrating the catalytic activity for the conversion of diol to cyclic carbonate, and the detailed kinetic experiments tempted us to propose a tentative reaction mechanism for this conversion.…”
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  17. 1217
    “…Herein, waste PET plastic was selectively carbonized into three-dimensional (3D) porous carbon nanosheets (PCS) with high yield of 36.4 wt%, to be further hybridized with MnO(2) nanoflakes to form PCS-MnO(2) composites. …”
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  18. 1218
    “…Sources of particulate organic carbon (POC) play important roles in aqueous carbon cycling because internal production can provide labile material that can easily be turned into CO(2). …”
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  19. 1219
    “…An electrosynthesis is presented to transform the greenhouse gas CO(2) into an unusually thin walled, smaller diameter morphology of Carbon Nanotubes (CNTs). The transformation occurs at high yield and coulombic efficiency of the 4-electron CO(2) reduction in a molten carbonate electrolyte. …”
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  20. 1220
    “…In this study, we have examined how the activation of hydrothermally carbonized sewage sludge and horse manure influences the inorganic component of these materials and surface chemistry. …”
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