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1. Huang, X. Fabrication and properties of carbon fibers. Materials (Basel). 2, 2369-2403 (2009).

2. Newcomb, B. A. Processing, structure, and properties of carbon fibers. Compos. Part A Appl. Sci. Manuf. 91, 262-282 (2016).

3. Masmoudi, S., El Mahi, A. & Turki, S. Fatigue behaviour and structural health monitoring by acoustic emission of E-glass/epoxy laminates with piezoelectric implant. Appl. Acoust.

108, 50-58 (2016).

4. Lin, Y. & Sodano, H. A. Concept and model of a piezoelectric structural fiber for multifunctional composites. Compos. Sci. Technol. 68, 1911-1918 (2008).

5. Ferreira, A. D. B. L., Nóvoa, P. R. O. & Marques, A. T. Multifunctional Material Systems:

A state of the art review. Compos. Struct. 151, 3-35 (2016).

6. Bowland, C., Zhou, Z. & Sodano, H. A. Multifunctional barium titanate coated carbon fibers. Adv. Funct. Mater. 24, 6303-6308 (2014).

7. Kumar, A. et al. Flexible ZnO-cellulose nanocomposite for multisource energy conversion.

Small 7, 2173-8 (2011).

8. Malakooti, M. H., Patterson, B. A., Hwang, H.-S. & Sodano, H. A. ZnO nanowire interfaces for high strength multifunctional composites with embedded energy harvesting. Energy Environ. Sci. 9, 634-643 (2016).

9. Xue, C.-H., Yin, W., Jia, S.-T. & Ma, J.-Z. UV-durable superhydrophobic textiles with UV- shielding properties by coating fibers with ZnO/SiO 2 core/shell particles. Nanotechnology 22, 415603 (2011).

10. El-Nahhal, I. M. et al. Nano-structured zinc oxide–cotton fibers: synthesis, characterization and applications. J. Mater. Sci. Mater. Electron. 24, 3970-3975 (2013).

11. Rodríguez-Tobías, H., Morales, G. & Grande, D. Improvement of mechanical properties and antibacterial activity of electrospun poly(D,L-lactide)-based mats by incorporation of ZnO- graft-poly(D,L-lactide) nanoparticles. Mater. Chem. Phys. 182, 324-331 (2016).

12. Bowland, C. C., Malakooti, M. H. & Sodano, H. A. Barium titanate film interfaces for hybrid

composite energy harvesters. ACS Appl. Mater. Interfaces 9, 4057-4065 (2017).

13. Zhou, Z., Bowland, C. C., Patterson, B. A., Malakooti, M. H. & Sodano, H. A. Conformal BaTiO3Films with High Piezoelectric Coupling through an Optimized Hydrothermal Synthesis. ACS Appl. Mater. Interfaces 8, 21446-21453 (2016).

14. Bowland, C. C. & Sodano, H. A. Hydrothermal synthesis of tetragonal phase BaTiO3 on carbon fiber with enhanced electromechanical coupling. J. Mater. Sci. 52, 7893-7906 (2017).

15. Lin, Y., Zhou, Z. & Sodano, H. A. Barium titanate and barium strontium titanate coated carbon fibers for multifunctional structural capacitors. J. Compos. Mater. 47, 1527-1533 (2013).

16. Damjanovic, D. Ferroelectric, dielectric and piezoelectric properties of ferroelectric thin films and ceramics. Reports Prog. Phys. 61, 1267-1324 (1998).

17. Jaffe, B., Cook, W. R. & Jaffe, H. L. Piezoelectric ceramics. Academic press (Academic Press, 1971).

18. Uchino, K. Ferroelectric devices. (CRC Press, 2010).

19. Chang-Soo, K., Randow, C. & Tomoko, S. Hybrid and Hierarchical Composite Materials.

(Springer Switzerland, 2015). doi:10.1007/978-3-319-12868-9

20. Ruyan, A. S. B. & Rustum, G. The perovskite structure – a review of its role in ceramic science and technology. Mat Res Innov. 4, 3-26 (2000).

21. Vijatovic, M. M. M. et al. History and challenges of barium titanate: Part I. Sci. Sinter. 40, 235-244 (2008).

22. Uchino, K. Advanced Piezoelectric Materials. Woodhead Publishing Series in Electronic and Optical Materials 9, (2010).

23. Newnham, R. E. Properties of Materials. (Oxford University Press, 2005).

24. Acosta, M. et al. BaTiO 3 -based piezoelectrics: Fundamentals, current status, and perspectives. Appl. Phys. Rev. 4, 041305 (2017).

25. I, R.-J. R. Modelado analítico de un micro generador de potencia basado en tecnología

MEMS y materiales piezoeléctricos. Superf. y Vacío 25, 110-116 (2012).

26. Prado, L. R., Resende, N. S. De, Silva, R. S., Egues, S. M. S. & Salazar-banda, G. R.

Influence of the synthesis method on the preparation of barium titanate nanoparticles. Chem.

Eng. Process. Process Intensif. 103, 12-20 (2016).

27. BaTiO3 crystal structure, lattice parameters. Ternary Compd. Org. Semicond. 1-6 doi:10.1007/10717201_513

28. Chand, S. Review Carbon fibers for composites. J. Mater. Sci. 35, 1303-1313 (2000).

29. Gunyaev, G. M., Zhigun, I. G., Sorina, T. G. & Yakushin, V. A. Shear strength of composites based on whiskerized fibers. Polym. Mech. 9, 437-444 (1975).

30. Tiwari, S. & Bijwe, J. Surface Treatment of Carbon Fibers - A Review. Procedia Technol.

14, 505-512 (2014).

31. Chung, D. D. L. Carbon Fibers, Nanofibers, and Nanotubes. en Carbon Composites (2017).

doi:10.1016/B978-0-12-804459-9.00001-4

32. Inagaki, M. & Kang, F. Engineering and Applications of Carbon Materials. en Materials Science and Engineering of Carbon: Fundamentals (2014). doi:10.1016/b978-0-12- 800858-4.00003-6

33. Jang, J. & Yang, H. The effect of surface treatment on the performance improvement of carbon fiber/polybenzoxazine composites. J. Mater. Sci. 35, 2297-2303 (2000).

34. Yue, Z. R., Jiang, W., Wang, L., Gardner, S. D. & Pittman, C. U. Surface characterization of electrochemically oxidized carbon fibers. Carbon N. Y. 37, 1785-1796 (1999).

35. Suraya, A. R., Vargis, C., Yunus, R. & Shamsudin, S. EVALUATION OF CARBON VAPOUR DEPOSITION TECHNIQUE FOR WHISKERIZATION TREATMENT OF CARBON FIBERS. Int. J. Eng. Technol. 3, 85-90 (2006).

36. Down, W. B. & Baker, R. T. K. Modification of the surface properties of carbon fibers via the catalytic growth of carbon nanofibers. J. Mater. Res. 10, 625-633 (1995).

37. Luo, S. & Van Ooij, W. J. Surface modification of textile fibers for improvement of adhesion to polymeric matrices: a review. J. Adhes. Sci. Technol. 16, 1715-1735 (2002).

38. Nema, S. K. & Jhala, P. B. Plasma Technology for Textile and Apparel. (2015).

39. Kan, C. A Novel Green Treatment for Textiles: Plasma Treatment as a Sustainable Technology. (2014).

40. Kan, C. W., Chan, K. & Yuen, C. W. M. Surface characterization of low temperature plasma treated wool fiber. Fibers Polym. 5, 52-58 (2004).

41. Kossyi, I. A., Kostinsky, A. Y., Matveyev, A. A. & Silakov, V. P. Kinetic scheme of the non-equilibrium discharge in nitrogen-oxygen mixtures. Plasma Sources Sci. Technol. 1, 207-220 (1992).

42. Chan, C.-M., Ko, T.-M. & Hiraoka, H. Polymer surface modification by plasmas and photons. Surf. Sci. Rep. 24, 1-54 (1996).

43. Fukunaga, A., Komami, T., Ueda, S. & Nagumo, M. Plasma treatment of pitch-based ultra high modulus carbon fibers. Carbon N. Y. (1999). doi:10.1016/S0008-6223(98)00308-X 44. Bismarck, A., Kumru, M. E. & Springer, J. ürgen. Influence of oxygen plasma treatment of

PAN-based carbon fibers on their electrokinetic and wetting properties. J. Colloid Interface Sci. (1999). doi:10.1006/jcis.1998.5912

45. Tiwari, S. et al. Influence of cold remote nitrogen oxygen plasma treatment on carbon fabric and its composites with specialty polymers. J. Mater. Sci. 46, 964-974 (2011).

46. Dhami, N. K., Reddy, M. S. & Mukherjee, A. Microwave Synthesis: A Physical Concept.

Waste Water - Evaluation and Management 2, (2012).

47. Gedye, R. N., Smith, F. E. & Westaway, K. C. The rapid synthesis of organic compounds in microwave ovens. Can. J. Chem. 66, 17-26 (1988).

48. Giguere, R. J., Bray, T. L., Duncan, S. M. & Majetich, G. Application of commercial microwave ovens to organic synthesis. Tetrahedron Lett. 27, 4945-4948 (1986).

49. Leadbeater, N. E. Microwave Assisted Organic Synthesis. Angewandte Chemie International Edition 45, (Blackwell Publishing Ltd, 2006).

50. Kim, T., Lee, J. & Lee, K.-H. Microwave heating of carbon-based solid materials. Carbon Lett. 15, 15-24 (2014).

51. Bogdal, D. Microwave-assisted organic synthesis: one hundred reaction procedures.

Tetrahedron Organic Chemistry Series 25, (2005).

52. Li, J., Wu, Q., Wu, J. & Aliofkhazraei, M. Synthesis of Nanoparticles via Solvothermal and Hydrothermal Methods. en Handbook of Nanoparticles 295-328 (Springer International Publishing, 2015). doi:10.1007/978-3-319-15338-4

53. Suchanek, W. L. & Riman, R. E. Hydrothermal Synthesis of Advanced Ceramic Powders.

Adv. Sci. Technol. 45, 184-193 (2006).

54. De Yoreo, J. J. Principles of Crystal Nucleation and Growth. Rev. Mineral. Geochemistry 54, 57-93 (2003).

55. Pithan, C., Hennings, D. & Waser, R. Progress in the synthesis of nanocrystalline BaTiO3 powders for MLCC. Int. J. Appl. Ceram. Technol. 2, 1-14 (2005).

56. Jiao, H., Zhao, K., Ma, L. & Tang, Y. A simple one-step hydrothermal synthesis and photocatalysis of bowl-like BaTiO 3 nanoparticles. Inorg. Nano-Metal Chem. 47, 647-654 (2017).

57. Liu, S.-F., Abothu, I. R. & Komarneni, S. Barium titanate ceramics prepared from conventional and microwave hydrothermal powders. Mater. Lett. 38, 344-350 (1999).

58. Natarajan Sasirekha, Baskaran Rajesh, and & Chen*, Y.-W. Hydrothermal Synthesis of Barium Titanate:  Effect of Titania Precursor and Calcination Temperature on Phase Transition. (2008). doi:10.1021/IE070986M

59. Inada, M., Enomoto, N., Hayashi, K., Hojo, J. & Komarneni, S. Facile synthesis of nanorods of tetragonal barium titanate using ethylene glycol. Ceram. Int. 41, 5581-5587 (2015).

60. Vinothini, V., Singh, P. & Balasubramanian, M. Synthesis of barium titanate nanopowder using polymeric precursor method. Ceram. Int. 32, 99-103 (2006).

61. Wang, L., Liu, L., Xue, D., Kang, H. & Liu, C. Wet routes of high purity BaTiO3nanopowders. J. Alloys Compd. 440, 78-83 (2007).

62. Haertling, G. H. Ferroelectric ceramics: History and technology. J. Am. Ceram. Soc. 82, 797-818 (1999).

63. Boulos, M. et al. Hydrothermal synthesis of nanosized BaTiO3 powders and dielectric

properties of corresponding ceramics. Solid State Ionics 176, 1301-1309 (2005).

64. Ying Ma, †, Elizabeth Vileno, †, Steven L. Suib, *,†,‡ and & Dutta§, P. K. Synthesis of Tetragonal BaTiO3 by Microwave Heating and Conventional Heating. (1997).

doi:10.1021/CM970371N

65. Sun, W. & Li, J. Microwave-hydrothermal synthesis of tetragonal barium titanate. Mater.

Lett. 60, 1599-1602 (2006).

66. Ponnamma, D. et al. Ceramic-Based Polymer Nanocomposites as Piezoelectric Materials.

en 77-93 (Springer, Cham, 2017). doi:10.1007/978-3-319-50424-7_3

67. Wang, Z. L. & Song, J. Piezoelectric nanogenerators based on zinc oxide nanowire arrays.

Science 312, 242-6 (2006).

68. Galan, U., Lin, Y., Ehlert, G. J. & Sodano, H. A. Effect of ZnO nanowire morphology on the interfacial strength of nanowire coated carbon fibers. Compos. Sci. Technol. 71, 946-954 (2011).

69. Lin, Y. & Sodano, H. A. Fabrication and Electromechanical Characterization of a Piezoelectric Structural Fiber for Multifunctional Composites. Adv. Funct. Mater. 19, 592- 598 (2009).

70. Lin, Y., Shaffer, J. W. & Sodano, H. A. Electrolytic deposition of PZT on carbon fibers for fabricating multifunctional composites. Smart Mater. Struct. 19, 124h (2010).

71. Koka, A. & Sodano, H. A. A low-frequency energy harvester from ultralong, vertically aligned BaTiO3 nanowire arrays. Adv. Energy Mater. 4, 1-6 (2014).

72. Hart, J. N., Cervini, R., Cheng, Y. B., Simon, G. P. & Spiccia, L. Formation of anatase TiO2by microwave processing. Sol. Energy Mater. Sol. Cells 84, 135-143 (2004).

73. Parala, H., Devi, A., Bhakta, R. & Fischer, R. A. Synthesis of nano-scale TiO2 particles by a nonhydrolytic approachElectronic supplementary information (ESI) available: TG analysis of the precursors; particle size distribution analysis of TiO2 nanocrystals dispersed in toluene; XRD analysis of TiO2 nanocrystals with and without glass substrate background.

See http://www.rsc.org/suppdata/jm/b2/b202767d/. J. Mater. Chem. 12, 1625-1627 (2002).

74. Livage, J., Henry, M. & Sanchez, C. Sol-gel chemistry of transition metal oxides. Prog.

Solid State Chem. 18, 259-341 (1988).

75. Huang, C. H., Yang, Y. T. & Doong, R. A. Microwave-assisted hydrothermal synthesis of mesoporous anatase TiO2via sol-gel process for dye-sensitized solar cells. Microporous Mesoporous Mater. 142, 473-480 (2011).

76. Guzmán-Velderrain, V., Ortega López, Y., Salinas Gutiérrez, J., López Ortiz, A. & H.

Collins-Martínez, V. TiO2 Films Synthesis over Polypropylene by Sol-Gel Assisted with Hydrothermal Treatment for the Photocatalytic Propane Degradation. Green Sustain. Chem.

04, 120-132 (2014).

77. Cerrada, M. L. et al. Self‐Sterilized EVOH‐TiO 2 Nanocomposites: Interface Effects on Biocidal Properties. Adv. Funct. Mater. 18, 1949-1960 (2008).

78. Eckert, J. O., Hung-Houston, C. C., Gersten, B. L., Lencka, M. M. & Riman, R. E. Kinetics and Mechanisms of Hydrothermal Synthesis of Barium Titanate. J. Am. Ceram. Soc. 79, 2929-2939 (1996).

79. Rhee, K. Y., Park, S. J., Hui, D. & Qiu, Y. Effect of oxygen plasma-treated carbon fibers on the tribological behavior of oil-absorbed carbon/epoxy woven composites. Compos. Part B Eng. 43, 2395-2399 (2012).

80. Hallal, A., Elmarakbi, A., Shaito, A. & El-Hage, H. Overview of Composite Materials and their Automotive Applications. en Advanced Composite Materials for Automotive Applications 1-28 (John Wiley & Sons Ltd, 2013). doi:10.1002/9781118535288.ch1 81. Carrott, P. J. . J. M., Nabais, J. M. . M. V, Ribeiro Carrott, M. M. . M. L. & Menéndez, J. .

A. Thermal treatments of activated carbon fibres using a microwave furnace. Microporous Mesoporous Mater. 47, 243-252 (2001).

82. Xin Zhang, Ying Hu, Yunxia Liu, B. C. Microwave thermal remediation of crude oil contaminated soil enhanced by carbon fiber. J. Environ. Sci. 23, 601-606 (2011).

83. Weber, M. J. Handbook of Optical Materials. CRC Press LLC (2003).

doi:10.1109/MEI.2004.1342444

84. Luo, R. et al. Thermophysical properties of carbon/carbon composites and physical mechanism of thermal expansion and thermal conductivity. Carbon N. Y. 42, 2887-2895

(2004).

85. Feng, X. et al. Vertically Aligned Single Crystal TiO 2 Nanowire Arrays Grown Directly on Transparent Conducting Oxide Coated Glass: Synthesis Details and Applications. Nano Lett. 8, 3781-3786 (2008).

86. Montes-Morán, M. A. & Young, R. J. Raman spectroscopy study of high-modulus carbon fibres: effect of plasma-treatment on the interfacial properties of single-fibre–epoxy composites: Part II: Characterisation of the fibre–matrix interface. Carbon N. Y. 40, 857- 875 (2002).

87. Montes-Morán, M. A. & Young, R. J. Raman spectroscopy study of HM carbon fibres: Part I. effect of plasma treatment on the interfacial properties of single fibre/epoxy composites.

Carbon N. Y. 40, 845-855 (2002).

88. Childres, I., Jaureguib, L. A., Parkb, W., Caoa, H. & Chena, Y. P. RAMAN SPECTROSCOPY OF GRAPHENE AND RELATED MATERIALS. en New Developments in Photon and Materials Research (ed. Jang, J. I.) 1-20 (Nova Science Publishers, 2013). doi:10.1002/9783527678679.dg13293

89. Cuesta, A., Dhamelincourt, P., Laureyns, J., Martínez-Alonso, A. & Tascón, J. M. D. Effect of Various Treatments on Carbon Fiber Surfaces Studied by Raman Microprobe Spectrometry. Appl. Spectrosc. 52, 356-360 (1998).

90. Song, L. et al. Effect of high-temperature thermal treatment on the structure and adsorption properties of reduced graphene oxide. Carbon N. Y. 52, 608-612 (2013).

91. Otakar, F. et al. Raman spectra of titanium dioxide (anatase, rutile) with identified oxygen isotopes (16, 17, 18). Phys. Chem. Chem. Phys. 14, 14567-14572 (2012).

92. An, W. et al. Assignment for vibrational spectra of BaTiO<inf>3</inf> ferroelectric ceramic based on the first-principles calculation. Wuli Huaxue Xuebao/ Acta Phys. - Chim. Sin. 31, 1059-1068 (2015).

93. Zhang, H., Cheng, B., Li, Q., Liu, B. & Mao, Y. Morphology-Tuned Phase Transitions of Horseshoe Shaped BaTiO 3 Nanomaterials under High Pressure. (2018).

doi:10.1021/acs.jpcc.8b00211

94. Hayashi, H., Nakamura, T. & Ebina, T. In-situ Raman spectroscopy of BaTiO3 particles for tetragonal-cubic transformation. J. Phys. Chem. Solids (2013).

doi:10.1016/j.jpcs.2013.02.010

95. Hayashi, T., Oji, N. & Maiwa, H. Film thickness dependence of dielectric properties of BaTiO3 thin films prepared by sol-gel method. Jpn. J. Appl. Phys. (1994).

doi:10.1143/JJAP.33.5277

96. Liu, Q.-J., Zhang, N.-C., Liu, F.-S., Wang, H.-Y. & Liu, Z.-T. BaTiO3: Energy, geometrical and electronic structure, relationship between optical constant and density from first- principles calculations. Opt. Mater. (Amst). 35, 2629-2637 (2013).

97. Uchino, K., Sadanaga, E. & Hirose, T. Dependence of the Crystal Structure on Particle Size in Barium Titanate. J. Am. Ceram. Soc. 72, 1555-1558 (1989).

98. Stobinski, L. et al. Graphene oxide and reduced graphene oxide studied by the XRD, TEM and electron spectroscopy methods. J. Electron Spectros. Relat. Phenomena 195, 145-154 (2014).

99. Wang, Y., Li, L., Huang, X., Li, Q. & Li, G. New insights into fluorinated TiO<inf>2</inf>

(brookite, anatase and rutile) nanoparticles as efficient photocatalytic redox catalysts. RSC Adv. 5, 34302-34313 (2015).

100. Liqiang, J. et al. The preparation and characterization of La doped TiO2 nanoparticles and their photocatalytic activity. J. Solid State Chem. 117, 3375–3382 (2004).

101. Ullattil, S. G. & Periyat, P. Sol-Gel Synthesis of Titanium Dioxide. en Sol-Gel Materials for Energy, Environment and Electronic Applications 271-283 (2017). doi:10.1007/978-3-319- 50144-4_9

102. Briggs, D. Surface Analysis of Polymers by XPS and Static SIMS. Polymer International (1999). doi:10.1002/(SICI)1097-0126(199903)48:3<244::AID-PI132>3.0.CO;2-B

103. Biesinger, M. C. et al. Resolving surface chemical states in XPS analysis of first row transition metals, oxides and hydroxides: Cr, Mn, Fe, Co and Ni. Appl. Surf. Sci. 257, 887- 898 (2010).

104. Sung, M. G. et al. Application of a high magnetic field in the carbonization process to

increase the strength of carbon fibers. Carbon N. Y. 40, 2013-2020 (2002).

105. Matthews, F. L. & Rawlings, R. D. (Rees D. . Composite materials : engineering and science.

ANEXO 1

Tabla 1. Experimentos preliminares realizados en la etapa de sembrado.

#

Concentraciones Tiempo

de agitación

Tiempo de inmersión

Tiempo de secado a alta temperatura Isopropanol Ácido clorhídrico Isopropóxido de titanio

mL moles mL moles M mL moles M min min min -°C

1 17 2.21E-01 0.04 4.53E-04 2.48E-02 1.25 4.10E-03 2.24E-01

5

30

60-120°

2 68 8.84E-01 0.16 1.81E-03 2.61E-02 1.25 4.10E-03 5.90E-02 3 51 6.63E-01 0.12 1.36E-03 2.60E-02 1.25 4.10E-03 7.82E-02 4 35 4.55E-01 0.08 9.06E-04 2.49E-02 1.25 4.10E-03 1.13E-01 5 68 8.84E-01 0.16 1.81E-03 2.61E-02 1.25 4.10E-03 5.90E-02

10 6 51 6.63E-01 0.12 1.36E-03 2.60E-02 1.25 4.10E-03 7.82E-02

7 35 4.55E-01 0.08 9.06E-04 2.49E-02 1.25 4.10E-03 1.13E-01

8 68 8.84E-01 0.16 1.81E-03 2.61E-02 1.25 4.10E-03 5.90E-02 Plasma 1 min c/lado

9 37 4.81E-01 2.08 2.36E-02 5.57E-01 3.25 1.06E-02 2.52E-01 60 - 120°

10 68 8.84E-01 0.16 1.81E-03 2.61E-02 1.25 4.10E-03 5.90E-02 Plasma 1 min cada

lado + 60’-120°

11 30

3.90E-01 0.07 7.93E-04 2.62E-02

0.25 8.19E-04 2.70E-02

5

60 - 120°

12 30 0.2 6.55E-04 2.16E-02

13 30 0.15 4.91E-04 1.63E-02

14 30 0.1 3.28E-04 1.09E-02

15 30 0.05 1.64E-04 5.44E-03

16 30 0.25 8.19E-04 2.70E-02

17 30 0.2 6.55E-04 2.16E-02

18 30 0.15 4.91E-04 1.63E-02

19 30 0.1 3.28E-04 1.09E-02

20 30 0.05 1.64E-04 5.44E-03

21 30 0.25 8.19E-04 2.70E-02

22 30 0.2 6.55E-04 2.16E-02 60 - 120° / Secado

por plasma (1min c/lado)

23 30 0.15 4.91E-04 1.63E-02

24 30 0.1 3.28E-04 1.09E-02

25 30 0.05 1.64E-04 5.44E-03

26 30 0.05 1.64E-04 5.44E-03

15 min de rampa a 140°C. 15 min de mantenimiento a 140°C. 15min de enfriamiento.

Potencia 600. Agitación (si).

27 30 0.05 1.64E-04 5.33E-03

20 min de rampa a 140°C. 20 min de mantenimiento a 140°C. 30 min de enfriamiento.

Potencia 600. Agitación (si).

28 30 0.05 1.64E-04 5.44E-03

29 30 0.15 4.91E-04 1.63E-02

30 30 0.15 4.91E-04 1.63E-02

31 30 0.1 3.28E-04 1.09E-02

32 30 0.1 3.28E-04 1.09E-02

33 30 0.05 1.64E-04 5.44E-03

34 30 0.05 1.64E-04 5.44E-03

35 60 7.80E-01 0.14 1.59E-03 2.63E-02 0.05 1.64E-04 2.72E-03 36 30

3.90E-01 0.07 7.93E-04 2.62E-02 0.15 4.91E-04 1.63E-02

37 30 2.55E-02 1 3.28E-03 1.05E-01

38 80

1.04E+00 0.185 2.09E-03 2.61E-02 0.06 1.97E-04 2.45E-03 39 80 0.2 2.27E-03 2.82E-02 0.07 2.29E-04 2.86E-03

ANEXO 2

Tabla 1. Experimentos preliminares realizados en la etapa de crecimiento.

# Condiciones (microondas)

Concentraciones

Orden de agregado

Agitació n

Tratamient o térmico Tetracloruro de titanio Ácido clorhídrico Isopropóxido de titanio

mL moles M mL moles M mL moles M min min - °C

1 30 min de rampa a 140°C. 30 min de mantenimiento a 140°C. 15 min de enfriamiento.

Potencia 600.

Agitación (si)

1 9.11E-03 3.96E-01 20 1.13E-01 4.92E+0

0 2 6.55E-03 2.85E-01

HCl. fibras.

Isopropóxid o de Ti.

Tetracloruro de Ti

5

0

2 0.5 4.55E-03 2.74E+00 0.16 9.06E-04 5.46E-01 1 3.28E-03 1.97E+0 0

3 30 min de rampa a 80°C. 30 min de mantenimiento a 100°C. 15 min de enfriamiento.

Potencia 600.

Agitación (si)

0.25 2.28E-03 5.59E-02 40 2.27E-01 5.56E+0

0 0.5 1.64E-03 4.02E-02 4 0.15 1.37E-03 3.38E-02 40 2.27E-01 5.60E+0

0 0.3 9.83E-04 2.43E-02 5 30 min de rampa a

140°C. 30 min de mantenimiento a 140°C. 15 min de enfriamiento.

Potencia 600.

Agitación (si)

0.5 4.55E-03 2.12E-01 20 1.13E-01 5.27E+0

0 1 3.28E-03 1.52E-01

1h-120

6 0.25 2.28E-03 1.10E-01 20 1.13E-01 5.46E+0

0 0.5 1.64E-03 7.89E-02 7 0.2 1.82E-03 8.84E-02 20 1.13E-01 5.50E+0

0 0.4 1.31E-03 6.36E-02

HCl.

Isopropóxid o de Ti.

Tetracloruro de Ti. fibra

0

8 0.1 9.11E-04 4.49E-02 20 1.13E-01 5.58E+0

0 0.2 6.55E-04 3.23E-02 9 10 min de rampa a

80°C (Potencia 200).

Sostenimiento a 80°C 5 min. 50 min de rampa a 140°C.

10 min de

mantenimiento a 140°C. 10 min de rampa a 140 y 10

min de

sostenimiento a 140.

Potencia 600.

Agitación (si)

0.45 4.10E-03 1.92E-01 20 1.13E-01 5.31E+0

0 0.9 2.95E-03 1.38E-01

10 0.35 3.19E-03 1.51E-01 20 1.13E-01 5.38E+0

0 0.7 2.29E-03 1.09E-01

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