Mostrando 221 - 240 Resultados de 2,601 Para Buscar '"Calcinate"', tiempo de consulta: 0.17s Limitar resultados
  1. 221
    “…Long-time calcination also decreases the catalytic activity due to the transformation of monoclinic ZrO(2) into tetragonal one and the slow leaching of SO(4)(2–). …”
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  2. 222
  3. 223
    “…The gel-composites, calcined at two consecutive stages, with temperatures ranging from 600 to 1000 °C, became Fe- and N-doped carbonaceous organic frameworks (FeNC), which demonstrated both graphene- and carbon nanotube-like morphologies and behaved as an electron-conducting medium. …”
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  5. 225
    por Zhang, Yueran, Zhang, Heng, Zhang, Xiong
    Publicado 2021
    “…In order to improve the early strength of fly ash blended cement concrete under steam curing conditions, fly ash was partly substituted by calcined flue gas desulfurization (FGD) gypsum and active calcium aluminate. …”
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  6. 226
    “…Few studies have been undertaken to establish the gel/space ratio of meta-illite calcined clay (MCC) and rice husk ash (RHA)-based high-performance concrete (HPC) mortar. …”
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  7. 227
  8. 228
    por Hwang, Jin Soo, Jung, Kyeong Youl
    Publicado 2021
    “…Near-infrared (NIR) reflective Fe(1.5)Cr(0.5)O(3) black pigments were synthesized by spray pyrolysis, and the effect of calcination temperature and Ti substitution on the optical properties were investigated. …”
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  9. 229
    “…A series of SiO(2)-supported and γ-Al(2)O(3)-supported nickel phosphides were prepared by temperature-programmed reduction (TPR) with different calcination and reduction temperatures. The prepared catalysts were characterized by XRD, BET, H(2)-TPR, CO titration and HRTEM. …”
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  10. 230
  11. 231
    por Chen, Yu-Jia, Uan, Jun-Yen
    Publicado 2023
    “…A layered double hydroxide (LDH) calcined-framework adsorbent was investigated for the rapid removal of heavy metal cations from plating wastewater. …”
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  12. 232
    “…The SnO(2)/g-C(3)N(4) composites were synthesized via a facile calcination method by using SnCl(4)·5H(2)O and urea as the precursor. …”
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  13. 233
    “…The Ru(n+) sites of the CMRT catalyst calcined at 250 °C are the competitive adsorption sites of NO and NH(3) molecules, while those of the CMRT catalyst calcined at 350 and 450 °C are active sites. …”
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  14. 234
    “…This paper describes the effect of calcination temperature on the phase composition, chemical composition, and morphology of ZrO(2) and Al(2)O(3) powders modified with 3-aminopropyltriethoxysilane (APTES). …”
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  15. 235
    “…The FTIR and XRD patterns demonstrated that synthesis of g-C(3)N(4) took place properly only when the calcination temperature was above 450 °C. The evolution of morphological and optical properties based on calcination temperature led to dramatically increased BET surface area and a decreased optical band gap value of g-C(3)N(4) prepared at 550 °C. …”
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  16. 236
    por Chen, Yan, Li, Ao, Fu, Xiuli, Peng, Zhijian
    Publicado 2022
    “…Herein, a simple (NH(4))(2)MoO(4)-induced one-step calcination method was successfully introduced to transform bulk g-C(3)N(4) into g-C(3)N(4)/MoO(2) composites with a large specific surface area. …”
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  17. 237
    “…In the present study, calcined melamine (CM) and magnetite nanoparticles (MNPs) were encapsulated in a calcium alginate (CA) matrix to effectively activate peroxymonosulfate (PMS) and generate free radical species for the degradation of ibuprofen (IBP) drug. …”
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  18. 238
    “…Its degree of crystallinity, crystallite size, and stability increased with increased calcination temperature. SEM depicted significant morphological changes with elevating calcination temperatures, which are attributed to the phase conversion from amorphous to crystalline. …”
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  19. 239
    “…These noble-metal-free and robust electrocatalysts are stable and do not require pyrolysis or calcination while exhibiting better electrocatalytic performance than the parent Zn-MUM-1/NF electrode. …”
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