Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA.
California NanoSystems Institute (CNSI), University of California, Los Angeles, Los Angeles, CA, 90095, USA.
Small. 2017 Feb;13(5). doi: 10.1002/smll.201602969. Epub 2016 Nov 15.
Ultrathin platinum nanowires obtained from wet-synthesis with no strong binding ligands exhibit very high sensitivity toward hydrogen gas (two orders of magnitude increase compared with state-of-the-art devices). Their chemical sensitivity, selectivity, and other sensing characteristics can be rationally tailored through further surface engineering. A significantly reduced cross-sensitivity toward humidity is achieved, while the hydrogen sensitivity is preserved or even enhanced.
由湿化学法制备得到的超薄铂纳米线，在没有强结合配体的情况下，对氢气表现出极高的灵敏度（与最先进的设备相比，灵敏度提高了两个数量级）。通过进一步的表面工程，可以合理地调整它们的化学灵敏度、选择性和其他传感特性。实现了对湿度的交叉灵敏度的显著降低，同时保持甚至增强了对氢气的灵敏度。
