【作者】 程继鹏； 叶瑛； 张孝彬； 沈忠悦； 涂江平； 刘芙； 陈长聘；

【Author】 Cheng Jipeng , YeYing, Zhang Xiaobin, Shen Zhongyue, Tu Jiangping , Liu Fu, Chen ChangpinDepartment of Material Science,Zhejiang University, Hangzhou 310027, China;Department of Earth Science, Zhejiang University, Hangzhou 310027, China

【机构】 浙江大学材料系； 浙江大学地科系；

【摘要】 锰结核采自东太平洋中国开辟区,主矿物相为钡镁锰矿、钠水锰矿和水羟锰矿,以及属XRD隐晶质的针铁矿与四方纤铁矿。其结构特征与人工合成的纳米碳管十分相似。采用压差法测量了锰结核的贮氢能力。所用H₂是来自LaNi₅的超高纯氢,贮氢压强约9MPa。室温下测得样品的贮氢量为0.312wt％。保持锰结核矿物结晶结构在加热脱水过程中的稳定性,对提高其贮氢能力至关重要。更多还原

【Abstract】 The Manganese nodules taken from Chinese Pioneer Area in the East Pacific is mainly made of delatorreite, Na-manganite, vemadite, and subordinately of goethite and and akaganeite. The microstructure features of these minerals are similar to those of carbon nanotubes. The hydrogen storage capacity of the sample was measured by pressure drop in the sample chamber. The hydrogen used in the experiments is ultrahigh purified hydrogen (99.9999%) from hydride of LaNi5. The operation pressure in the specimen chamber is about 9 Mpa. The hydrogen storage capacity of sample is found to be 0.312 weight percent at room temperature. How to maintain the crystal structure stable during dehydration is essential for improving the hydrogen storage capacity of manganese nodule minerals.更多还原