环境气氛对DEB吸氢性能的影响

考察了CO、O₂等杂质气体对DEB-Pd/C消氢剂吸氢性能的影响。实验结果表明，CO对DEB-Pd/C初期的吸氢性能影响较大，而O₂对DEB-Pd/C初期的吸氢性能影响较小。同时考察了贮存气氛及贮存时间对DEB-Pd/C吸氢性能的影响。实验结果表明，在氮气、空气环境下贮存1.5 a的消氢剂仍具有良好的消氢性能；当密闭体系中的氢含量为吸氢剂理论吸氢容量的50%时，仍能将氩、氢混合气中的残余氢量控制在10 ppm以下。室温、潮湿环境气氛下贫铀样品贮存气氛中的消氢实验结果也表明，DEB-Pd/C消氢剂能很好地控制密闭体系中的氢含量。

Influence of Atmosphere on Uptake Hydrogen of DEB Getter

The influence of carbon monooxide, oxygen on the uptake hydrogen of DEB getter was studied in this paper. The results show that CO has effect on the uptake hydrogen of DEB-Pd/C at initial stage, but O₂ has less effect. The influence of atmosphere and time on the uptake hydrogen of storage DEB getter was also studied. Storage experiment shows that hydrogen getter still has good uptake capability after storing in N₂ and air for 1.5 years. When the content of hydrogen in the closed system approximates 50% uptake capacity of DEB, the residual hydrogen content in the argon can be controlled by less than 10 ppm. The hydrogen uptake experiment of uranium at room temperature under the moist atmosphere also indicates that the content of hydrogen in the closed system can be better controlled by DEB-Pd/C hydrogen getter.