Temperature-programmed desorption and adsorption of hydrogen on Mo2N |
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| Authors: | Xin Sheng Li Yan Xin Chen Yao Jun Zhang Chun Xin Ji and Qin Xin |
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| Institution: | (1) State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023 Dalian, China |
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| Abstract: | Hydrogen adsorption-desorption over Mo2N has been studied using a temperature-programmed technique. It is revealed that hydrogen on Mo2N exhibits very high mobility leading to migration of the surface hydrogen into the sublayer and bulk of the sample or the reverse. The surface hydrogen species are preferentially formed when adsorption is carried out below 573 K. On increasing the adsorption temperature to above 573 K, the quantity of hydrogen species located in the sublayer or/and bulk of the Mo2N sample increases significantly. |
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| Keywords: | Mo2N hydrogen adsorption-desorption |
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