碳纳米管表面处理对储氢性能的影响

THE EFFECT OF SURFACE TREATMENTS ON HYDROGEN STORAGE OF CARBON NANOTUBES

碳纳米管的表面特性决定着与氢之间的相互作用。为获得良好的吸附表面，使用浓硝酸和NaOH溶液对碳纳米管进行了表面处理，改善了比表面积和表面活性，从而使氢吸附率达到了5％（室温和10MPa的条件下），实验结果稳定。

： Carbon nanotubes used in this experiment were grown from a acetylene－ hydrogen mixture on a support using different catalyst precursors. The surface characteristics of carbon nanotubes determined the interaction with hydrogen, so the materials thus produced were submitted to two different treatments, namely nitric acid and alkali solution to gain favorable adsorption surface, these treatments improved surface area and surface activity effectively. At last it can absorb 5％ of hydrogen at room temperature under 10 MPa, and the result is stable.