摘要
HfC、ZrC、TaC具有超高的熔点、良好的耐高温、抗氧化、耐化学腐蚀性及较高的机械强度等优异性能.一维HfC、ZrC、TaC不仅具有其块体材料的优异性能也具有一维材料良好的力学性能,作为增韧材料、高温防护材料、电子材料、电化学催化材料、储氢材料等受到广泛关注.综述了化学气相沉积法(CVD)、有机先驱体转化法、熔盐法等一维HfC、ZrC、TaC的制备方法.综述了一维HfC、ZrC、TaC在增强增韧材料、电极材料、电催化材料等应用领域的国内外研究进展.讨论了当前一维HfC、ZrC、TaC原料价格昂贵、原料利用率低、制备工艺复杂等尚存的问题,并且对其未来研究方向的发展趋势提出了展望.
Abstract
HfC,ZrC and TaC exhibit excellent properties such as ultra-high melting point,good high temperature resistance,oxidation resistance,chemical corrosion resistance and high mechanical strength.One-dimensional HfC,ZrC and TaC not only enjoy excellent performance of their bulk materials but also have good mechanical properties of one-dimensional materials.Therefore,they have attracted extensive attention as toughening materials,high temperature protection materials,electronic materials,electrochemical catalytic materials and hydrogen storage material.Preparation methods of one-dimensional HfC,ZrC and TaC by chemical vapor deposition(CVD)methods,organic precursor transformation method and molten salt method are reviewed.Research progress of one-dimensional HfC,ZrC and TaC used as toughening and strengthening material,electrode material and electrocatalytic material is reviewed.Existing problems of one-dimensional HfC,ZrC and TaC are discussed,such as high cost and low utilization rate of raw material and complex preparation process.Development trend of the future research direction of one-dimensional HfC,ZrC and TaC is proposed.
维普
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