Supported metal nanoparticle catalysts are widely used in industry but suffer from deactivation resulting from metal sintering and coke deposition at high reaction temperatures. Here, we show an efficient and general strategy for the preparation of supported metal nanoparticle catalysts with very high resistance to sintering by fixing the metal nanoparticles (platinum, palladium, rhodium and silver) with diameters in the range of industrial catalysts (0.8–3.6 nm) within zeolite crystals (metal@zeolite) by means of a controllable seed-directed growth technique. The resulting materials are sinter resistant at 600–700 °C, and the uniform zeolite micropores allow for the diffusion of reactants enabling contact with the metal nanoparticles. The metal@zeolite catalysts exhibit long reaction lifetimes, outperforming conventional supported metal catalysts and commercial catalysts consisting of metal nanoparticles on the surfaces of solid supports during the catalytic conversion of C₁ molecules, including the water-gas shift reaction, CO oxidation, oxidative reforming of methane and CO₂ hydrogenation.

负载的金属纳米颗粒催化剂在工业中被广泛使用，但是由于在高反应温度下金属烧结和焦炭沉积而导致失活。在这里，我们展示了一种通过固定直径在工业催化剂范围内（0.8-3.6 nm）的金属纳米颗粒（铂，钯，铑和银）来制备具有极高抗烧结性的负载型金属纳米颗粒催化剂的有效且通用的策略通过可控的晶种生长技术在沸石晶体（metal @ zeolite）中）。所得的材料在600–700°C的温度下具有抗烧结性，并且均匀的沸石微孔可以使反应物扩散，从而使其能够与金属纳米颗粒接触。金属@沸石催化剂具有较长的反应寿命，_1个分子包括水煤气变换反应，CO氧化，甲烷的氧化重整和CO ₂加氢。