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Carbon nanotubule membranes for electrochemical energy storage and production

机译：碳纳米管膜，用于电化学能量存储和生产

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Ensembles of aligned and monodisperse tubules of graphitic carbon can be prepared by a templating method that involves the chemical-vapour deposition of carbon within the pores of alumina membranes. Tubules with diameters as small as 20 nm have been prepared in this way. The carbon comprising these tubules can be transformed from a disordered material to very highly ordered graphite. Here we show that template-synthesized carbon tubules can be fabricated as free-standing nanoporous carbon membranes, and that narrower, highly ordered graphitic carbon nanotubes can be prepared within the membrane's tubules. Both the outer and the inner tubules are electrochemi-cally active for intercalation of lithium ions, suggesting possible applications in lithium-ion batteries. The membranes can also be filled with nanoparticles of electrocatalytic metals and alloys. Such catalyst-loaded membranes can be used to electrocatalyse O_2 reduction and methanol oxidation, two reactions of importance to fuel-cell technology.
机译：可以通过模板方法来制备排列整齐且单分散的石墨碳管，该方法涉及在氧化铝膜的孔内将碳化学气相沉积。以这种方式制备了直径小至20nm的小管。包含这些小管的碳可以从无序的材料转变成非常有序的石墨。在这里，我们表明可以将模板合成的碳管制成独立的纳米多孔碳膜，并且可以在膜的微管中制备更窄，高度有序的石墨碳纳米管。外部和内部小管都具有电化学活性，可嵌入锂离子，这暗示了其在锂离子电池中的可能应用。膜也可以填充有电催化金属和合金的纳米颗粒。这种负载催化剂的膜可用于电催化O_2还原和甲醇氧化，这对燃料电池技术至关重要。

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