To cater to the complex needs in gas monitoring under harsh conditions, highly reliable and highly customized gas sensors with excellent sensing performance are in demand. Body-centered periodical mullite based ammonia sensors were fabricated by 3D printing for highly reliable ammonia detection. The printed substrates were modified with Ag nanoparticles decorated PANI network. NH₃ molecules can react with PANI to withdraw protons, leading to the localization of polarons and increasing the resistance. Additionally, the Ag nanoparticles provided more active sites for NH₃ molecules adsorption, enhancing the sensing performance. The sensor exhibited a response value of 9.7–100 ppm NH₃ and excellent selectivity at room temperature. More importantly, the sensors had an excellent mechanical performance with the compressive strength and energy absorption of 23.71 MPa and 243.09 kJ/m³, respectively, ensuring stable operation under stress. The strategy may shed light on the production of reliable and tailor-made gas sensors.

为了满足苛刻条件下气体监测的复杂需求，需要具有出色传感性能的高度可靠和高度定制化的气体传感器。通过3D打印制造以人体为中心的基于莫来石的周期性氨传感器，以实现高度可靠的氨检测。用Ag纳米颗粒装饰的PANI网络修饰印刷的基材。NH ₃分子可与PANI反应以抽出质子，从而导致极化子的定位并增加电阻。另外，Ag纳米颗粒为NH ₃分子吸附提供了更多的活性位，从而增强了传感性能。该传感器的响应值为9.7–100 ppm NH ₃在室温下具有出色的选择性。更重要的是，这些传感器具有出色的机械性能，其抗压强度和能量吸收分别为23.71 MPa和243.09 kJ / m ³，从而确保了在应力下的稳定运行。该策略可能会为可靠和量身定制的气体传感器的生产提供启示。