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ZHONG Zheng-kun, XING Pi-feng, FU Zhong-hua, WANG Chang-bin(Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics,P.O.Box 919-214, Mianyang 621900, China). Cryogenic Adsorption of Hydrogen Isotopes on Carbonaceous Adsorbents (Ⅰ)[J]. Atomic Energy Science and Technology, 2003, 37(1): 42-42. DOI: 10.7538/yzk.2003.37.01.0042
Citation: ZHONG Zheng-kun, XING Pi-feng, FU Zhong-hua, WANG Chang-bin(Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics,P.O.Box 919-214, Mianyang 621900, China). Cryogenic Adsorption of Hydrogen Isotopes on Carbonaceous Adsorbents (Ⅰ)[J]. Atomic Energy Science and Technology, 2003, 37(1): 42-42. DOI: 10.7538/yzk.2003.37.01.0042
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  • The static differential pressure method is used to study the cryogenic adsorption of hydrogen isotopes on the carbonaceous adsorbents, including activated carbon(AC), carbon molecular sieve(601) and carbon nanofibers(CNF). Experimental results indicate that the adsorption capacity of hydrogen isotopes on 601 is higher than that on AC or CNF at liquid nitrogen temperature and CNF has the smallest adsorption capacity. Isotopic effects of H2 and D2 adsorption on all these adsorbents are also observed. It is demonstrated that hydrogen gas adsorption capacity is numerically related to the surface active sites of carbonaceous adsorbents and concentrated HNO3 can be used to carry out surface modification to increase the number of active sites.
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