Tribochemical activation of gold surface by scratching
Tribochemical activation of gold surface by scratching
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通过刮擦对金表面进行摩擦化学活化
DOI：
10.1016/0169-4332(94)90014-0
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发表时间：
1994
影响因子：
6.7
通讯作者：
Y. Shitara
中科院分区：
文献类型：
--
作者：
S. Mori;Y. Shitara
在高真空条件下，通过刮擦形成新的金表面，并用四极杆质谱仪监测有机化合物在表面的吸附和反应。实验发现，通过刮擦，金表面被摩擦化学活化，各种有机化合物在新鲜表面化学吸附。估计的化学吸附活性与有机化合物的官能团密切相关。即使在抓挠结束后，由于吸附分子的分解，仍观察到氢的析出。碳氢化合物也在有机碘的吸附下演化。结果表明，即使在室温下，金表面也会发生有机化合物的化学吸附和分解。
Fresh gold surfaces were formed by scratching under high vacuum conditions, and adsorption and reactions of organic compounds on the surface were monitored with a quadrupole mass spectrometer. It was found that the gold surface was activated tribochemically by scratching, and various organic compounds chemisorbed on the fresh surface. The estimated chemisorption activities were closely related to the functional group of the organic compounds. Hydrogen evolution due to decomposition of adsorbed molecules was observed even after the termination of scratching. Hydrocarbons were also evolved on adsorption of organic iodide. It is conclude that gold surface becomes so active by scratching that chemisorption and decomposition of organic compounds occur on it even at room temperature.