采用溶剂热法合成了铝掺杂的纳米ZnO气敏材料,运用XRD和BET等手段对产物进行了表征并进行了相应的气敏性能测试。结果表明,掺杂1.5%Al后的ZnO比表面最大,粒径最小;材料对乙醛、90#汽油、90#乙醇汽油、硫化氢、二氧化氮响应较高。掺杂量为1.5%Al的元件对90#汽油在浓度为50ppm时灵敏度接近120。 Aluminum-doped ZnO nanoparticles were synthesized by solvothermal method. The products were characterized by XRD and BET, and the corresponding gas-sensing properties were also tested. The results show that ZnO doped with 1.5% Al has the largest specific surface area and the smallest particle size. The material has higher response to acetaldehyde, 90 # gasoline, 90% ethanol gasoline, hydrogen sulfide and nitrogen dioxide. Components doped with 1.5% Al 90 # gasoline at a concentration of 50ppm sensitivity of nearly 120.