Mostrando 781 - 800 Resultados de 100,426 Para Buscar '"carbón"', tiempo de consulta: 0.48s Limitar resultados
  1. 781
    “…[Image: see text] Efficient Na ion intercalation/deintercalation in the semigraphitic lattice of a hard carbon derived from the walnut shell is demonstrated. …”
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  2. 782
  3. 783
    “…Their exploitation is based on decarboxylation at elevated temperature and under oxidizing conditions, which inevitably release carbon dioxide into the atmosphere. Hydrogenation of inorganic metal carbonates opens up a new pathway for processing several metal carbonates. …”
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  4. 784
  5. 785
    por Lin, Bing, Zuo, Yu
    Publicado 2019
    “…The inhibition effect and mechanism of a compound calcium lignosulfonate (CLS) and sodium molybdate inhibitors for Q235 carbon steel in simulated carbonated concrete pore solution (pH 11.5) with 0.02 mol/L NaCl are studied using electrochemical and surface analysis techniques. …”
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  6. 786
  7. 787
    “…BACKGROUND: Unlike in the developed countries, Ethiopia does not have carbon inventories and databank to monitor and enhance carbon sequestration potential of different forests. …”
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  8. 788
    “…The synthesis of biomass-derived porous carbons (PCs) for supercapacitors by conventional two-steps method (chemical activation after carbonization) is complicated and time-consuming. …”
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  9. 789
    “…We report the extent to which the electrochemical performance of Li–S battery systems depends on the characteristics of the carbon coating of the separator. Carbon-coated separators containing different ratios of carbon black (Super-P) and vapor-grown carbon fibers (VGCFs) were prepared and evaluated in Li–S batteries. …”
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  10. 790
    “…The renewable resource as a major feedstock to prepare porous carbon has showed many advantages compared to fossil-based materials. …”
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  11. 791
    “…[Image: see text] A carbon quantum dot-based carbon paste electrode was fabricated and used for the determination of adrenaline (AD) at the nanomolar level. …”
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  12. 792
    “…[Image: see text] The applied pyrolysis temperature was found to strongly affect composition, structure, and oxidation behavior of pure and iron oxide nanoparticle (NP)-loaded carbon materials originating from hydrothermal carbonization (HTC) of cellulose. …”
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  13. 793
    “…Metal–organic framework–derived carbon nanostructures have generated significant interest in electrochemical capacitors and oxygen/hydrogen catalysis reactions. …”
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  14. 794
    “…The role of appendicularian faecal pellet (FPa) size fractions on coccolithophore-derived particulate organic carbon (POC) and calcium carbonate (CaCO(3)) export to the deep sea was assessed from sediment traps within a period of ten years (1995–2004) off Coquimbo (CQ, 30°S) and five years (2005–2009) off Concepción (CC, 36°S) in the Humboldt Current System (HCS) off Chile. …”
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  15. 795
    “…This study focuses on the corrosion mechanism of carbon steel exposed to an artificial geothermal brine influenced by carbon dioxide (CO(2)) gas. …”
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  16. 796
    “…Reducing these impacts is crucial, but production-based frameworks of carbon measurement and mitigation—which encompass only a limited part of cities’ carbon footprints—are much more developed and widely applied than consumption-based approaches that consider the embedded carbon effectively imported into a city. …”
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  17. 797
    “…Carbon dioxide electroreduction provides a useful source of carbon monoxide, but comparatively few catalysts could be sustained at current densities of industry level. …”
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  18. 798
    “…The aim of the present study was to compare the effects of lanthanum carbonate (LC) with calcium carbonate (CC) on the progression of CVC in patients who initiated maintenance hemodialysis and to investigate clinical factors related to CVC. …”
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  19. 799
  20. 800
    “…A metastable sp(3)-bonded carbon allotrope, Penta-C(20), consisting entirely of carbon pentagons linked through bridge-like bonds, was proposed and studied in this work for the first time. …”
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