【摘要】 采用水热法制备了不同Ag修饰量的Ag/MoO₂纳米复合材料,并利用浸渍法将其负载在多孔泡沫镍（Nickel foam,NF）上制备成Ag/MoO₂/NF无粘结剂型直接电极。在该电极中Ag/MoO₂纳米颗粒均匀地负载在泡沫镍上形成了三维网络结构,其中MoO₂纳米颗粒是由¹0 nm的纳米晶组成。当Ag修饰量为5%时,Ag0.05/MoO₂/NF具有最佳的电化学性能:在0.1 C的电流密度下,首次放电比容量高达1180 m Ah/g,100次循环后仍保持805 m Ah/g;且当电流密度由2 C降低至0.1 C时,比容量由468 m Ah/g升高至820 m Ah/g,表现出优异的储锂性能。更多还原

【Abstract】 Ag/MoO₂ nanocomposites with different Ag contents were synthesized by hydrothermal method,which were anchored on the porous Ni foam to prepare Ag/MoO₂/NF as binder-free electrode via the dipcoating method. It was found that Ag/MoO₂ nanocomposites consisted of many-10 nm nanocrystals were uniformly loaded on Ni foam with 3 D network structure. When the Ag content is 5%,Ag0. 05/MoO₂/NF electrode has the optimal electrochemical properties. The initial discharge capacity is 1180 m Ah/g at a current density of 0. 1 C. It was worth noting that the discharge capacity still retains 805 m Ah/g after 100 cycles. when the current density return to 0. 1 C from 2 C（ 468 m Ah/g）,Ag0. 05/MoO₂/NF electrode delivers a high capacity of 820 m Ah/g,indicating excellent lithium storage performance.更多还原