Sensors and Actuators B: Chemical ( IF 8.4 ) Pub Date : 2020-01-13 , DOI: 10.1016/j.snb.2020.127713 Da Meng , Shendan Zhang , Tiju Thomas , Ruiyang Zhao , Ying Shi , Fengdong Qu , Minghui Yang
In this paper, a novel fuel cell-type methanol gas sensor based on platinized mesoporous titanium nitride is fabricated. Mesoporous TiN, synthesized from ammonolysis of Zn-containing oxide precursor, is utilized as a support for platinum for both anode and cathode. Its performance is compared to that of Vulcan XC-72R carbon blacks. Hot press method is used for the fabrication of the sensor device. The results for methanol gas detection at room temperature reveal that Pt/TiN sensor has enhanced sensitivity. The response current towards 50 ppm methanol reaches 9.68 μA, which is ∼20 times higher than that of Pt/C sensor (0.41 μA). The Pt/TiN sensor also exhibits excellent repeatability, selectivity and long-term stability. This work reveals the potential of titanium nitride as support materials for gas sensing technologies.
中文翻译:
铂装饰介孔氮化钛用于燃料电池型甲醇气体传感器
本文制备了一种新型的基于铂中孔氮化钛的燃料电池式甲醇气体传感器。由含锌氧化物前体的氨解反应合成的介孔TiN用作阳极和阴极铂的载体。将其性能与Vulcan XC-72R炭黑相比。热压法用于传感器装置的制造。在室温下检测甲醇气体的结果表明,Pt / TiN传感器具有更高的灵敏度。对50 ppm甲醇的响应电流达到9.68μA,是Pt / C传感器(0.41μA)的约20倍。Pt / TiN传感器还具有出色的可重复性,选择性和长期稳定性。这项工作揭示了氮化钛作为气体传感技术支持材料的潜力。