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Nanohilos de Oxinitruro de Titanio Pseudocapacitivos para Supercondensadores de Ultra Alta Capacitancia

Sheilah Cherono¹, Panupong Jaipan¹, Zixiao Shi²

¹Department of Mechanical Engineering, North Carolina Agricultural and Technical State University, Greensboro, North Carolina 27411, United States.

ACS applied nano materials

|February 12, 2026

Resumen

Los nanohilos de oxinitruro de titanio (TiNO) exhiben un rendimiento superior como materiales de electrodo para supercondensadores en comparación con las películas delgadas. Esta mejora en el almacenamiento de energía se debe a su mayor capacitancia y densidad de energía, lo que convierte al TiNO en un material prometedor para aplicaciones de almacenamiento de carga.

Área de la Ciencia:

Ciencia de Materiales
Nanotecnología
Electroquímica

Sus antecedentes:

Se sintetizan películas delgadas de oxinitruro de titanio (TiNO) bidimensionales (2D) y nanohilos de TiNO unidimensionales (1D).
Se emplea la deposición por láser pulsado (PLD) como método de síntesis.
Se utilizan cálculos de primeros principios para comprender las propiedades del material.

Objetivo del estudio:

Sintetizar películas delgadas y nanohilos de TiNO de alta calidad.
Investigar las propiedades estructurales y electroquímicas de los materiales de TiNO.
Evaluar el TiNO como material de electrodo potencial para supercondensadores.

Principales métodos:

Síntesis de películas delgadas y nanohilos de TiNO mediante deposición por láser pulsado.
Cálculos de primeros principios para determinar la orientación superficial y los efectos de terminación.
Caracterización electroquímica de la capacitancia específica y la densidad de energía.

Principales resultados:

Los nanohilos de TiNO demuestran una capacitancia específica de 2725 mF/cm², significativamente mayor que las películas delgadas de TiNO (400 mF/cm²).
Las muestras de nanohilos exhiben una mayor densidad de energía (1,35 μWh/cm²) en comparación con las películas delgadas (0,33 μWh/cm²).
Los cálculos de primeros principios respaldan la observación experimental de la orientación (110) en los nanohilos de TiNO.

Conclusiones:

Los nanohilos de TiNO ofrecen un aumento de seis veces en la capacitancia específica en comparación con las películas delgadas de TiNO.
El rendimiento mejorado de los nanohilos se atribuye a su alta densidad de empaquetamiento.
El TiNO, tanto en forma de película delgada como de nanohilo, muestra ser prometedor para electrodos de supercondensadores y aplicaciones de almacenamiento de carga.

Palabras clave:

transferencia de carga nanohilos pseudocapacitores deposición por láser pulsado supercapacitancia orientación superficial películas delgadas oxinitruro de titanio

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