Noble metal aerogels (NMAs), as the most important class of noble metal foams (NMFs), appear as emerging functional porous materials in the field of materials science. Combining the irreplaceable roles of noble metals in certain scenarios, as well as monolithic and porous features of aerogels, NMAs can potentially revolutionize diverse fields, such as catalysis, plasmonics, and biology. Despite profound progress, grand challenges remain in their fabrication process, including the efficient structure control, the comprehensive understanding of the formation mechanisms, and the generality of the fabrication strategies, thus inevitably retarding the material design and optimization. This Perspective focuses on the key progress, especially of the fabrication strategies for NMAs during the last two decades, while other NMFs are also succinctly introduced. Challenges and opportunities are summarized to highlight the unexploited space and future directions in expectation of stimulating the broad interest of interdisciplinary scientists.

贵金属气凝胶（NMAs）作为最重要的一类贵金属泡沫（NMFs），在材料科学领域表现为新兴的功能多孔材料。结合贵金属在某些情况下的不可替代的作用，以及气凝胶的整体和多孔特征，NMA可以潜在地改变各种领域，例如催化，等离激元和生物学。尽管取得了长足的进步，但是在制造过程中仍然面临着巨大的挑战，包括有效的结构控制，对形成机理的全面理解以及制造策略的普遍性，因此不可避免地阻碍了材料的设计和优化。本“观点”着眼于关键进展，尤其是过去20年中NMA的制造策略，同时也简要介绍了其他NMF。总结了挑战和机遇，以突出未开发的空间和未来的方向，以期激发跨学科科学家的广泛兴趣。