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Ni–P and TiO2 codeposition on silk textile via supercritical CO2 promoted electroless plating for flexible and wearable photocatalytic devices
Electrochimica Acta ( IF 6.6 ) Pub Date : 2018-10-13 , DOI: 10.1016/j.electacta.2018.10.076
Wan-Ting Chiu , Chun-Yi Chen , Tso-Fu Mark Chang , Tomoko Hashimoto , Hiromichi Kurosu , Masato Sone

This study reported integration of Ni–P/TiO2 incorporated structure on silk textiles to produce a flexible, highly reliable, and photocatalytic composite material toward applications in functional wearable devices. Supercritical carbon dioxide (Sc–CO2) promoted electroless plating was utilized to codeposit photocatalytic TiO2 and electrically conductive Ni–P metallization layer on silk textile. Silk was chosen as the substrate for its flexibility and stretchability. Ni–P was utilized due to its high corrosion resistance, electrical conductivity, and high wear resistance. TiO2 was selected for its photocatalytic activity and acting as a reinforcement filler to fulfill requirements for applications in wearable devices. Surface morphology, composition, crystal structure, electrical resistance, corrosion resistance, adhesive test, and photocatalytic activity assessments were conducted to evaluate the practicability for wearable photocatalytic devices. With the assistance of sc–CO2, palladium (II) acetylacetonate catalyst was successfully embedded into the silk substrate at around 330 nm in depth. The coatings on the silk were confirmed to be amorphous Ni–P phase and TiO2 anatase phase. Uniform Ni–P/TiO2 composite layer with strong adherence was successfully co–deposited on the silk textile. Ni–P/TiO2 composite layer deposited with 30 g/L of TiO2 (critical concentration) in the electrolyte showed higher corrosion resistance while comparing to those of TiO2–free specimen. The Ni–P/TiO2 composite layer deposited with the critical concentration of TiO2 in the electrolyte performed the highest photocatalytic activity.



中文翻译:

Ni-P和TiO 2通过超临界CO 2促进在丝织物上的共沉积促进了用于柔性和可穿戴光催化装置的化学镀

这项研究报道了将Ni–P / TiO 2掺入的结构整合到丝织物上,从而生产出一种柔性,高度可靠且光催化的复合材料,以用于功能性可穿戴设备。超临界二氧化碳(Sc–CO 2)促进的化学镀被用于在丝织物上共沉积光催化TiO 2和导电的Ni–P金属化层。丝绸因其柔韧性和可拉伸性而被选为基材。使用Ni-P的原因在于其高耐腐蚀性,导电性和高耐磨性。二氧化钛2选择它的原因是其具有光催化活性,并可以充当补强填充剂,以满足可穿戴设备中的应用要求。进行了表面形态,组成,晶体结构,电阻,耐腐蚀性,粘合力测试和光催化活性评估,以评估可穿戴光催化装置的实用性。在sc-CO 2的协助下,乙酰丙酮钯(II)催化剂成功地以约330 nm的深度嵌入到丝绸基质中。丝绸上的涂层被证实为非晶态Ni-P相和TiO 2锐钛矿相。具有强附着力的均匀Ni-P / TiO 2复合层成功地共沉积在丝织物上。Ni–P / TiO 2与不含TiO 2的样品相比,在电解质中沉积有30​​ g / L TiO 2(临界浓度)的复合层显示出更高的耐腐蚀性。在电解质中以临界浓度TiO 2沉积的Ni-P / TiO 2复合层表现出最高的光催化活性。

更新日期:2018-10-13
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