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on the worn surface. The chemical composition of the film is 2.42C, 9.88O, 3.18Si, 15.99Cr, 7.36Fe and 61.18Ni (mass fraction, %) (Fig. 9(b)), which indicates Fe2O3, Fe3O4 and NiO in the film......
, OZIN G A. Ultrathin nanowires-A materials chemistry perspective [J]. Advanced Materials, 2009, 21(9): 1013-1020. [2] ZENG W, MIAO B, LIN L, XIE J. Facile synthesis of NiO nanowires and their gas......
and Jcorr/Sreal values of porous Ni3Al intermetallics with higher porosity corresponds to the significantly higher anodic kinetics and lower cathode kinetics. It can speculate based on Ref. [24] that NiO......
电压以上,LNMO容易在循环过程中与电解质溶液发生作用导致化学不稳定性；2) 由于在制备过程中氧缺失,生成LixNi1-xO或NiO等杂相,很难得到单相的LNMO,导致材料的循环性能恶化.解决第二个问题,主要依靠改进制备方法[4-5]和体相掺杂等手段[6-7].而解决第一个问题,一方面在于研究能耐受高电压的电解液体系,如研制能在高电压下使用的氟基电解液[3]；另一方面,通常采用表面包覆的方法. 大......
in γ-Ni(Al) and experimental values[29-32] 由图3还可看出,在足够高的Al活度(即乏氧气氛)条件下,界面甚至可直接生成镍铝金属间化合物(Ni3Al).而随着Al活度不断降低(对应于氧分压的不断升高),该温度下界面平衡相可能逐步转变为理想化学计量比相(Ni/Al2O3),富O相(Ni/OAl2O3),复合氧化物(NiAl2O4),直至氧化镍(NiO),其中复合......
eV) [7], SnO2 (3.8 eV) [8], and NiO (Eg 3.5 eV) [9] also has been proved to be an effective method to improve their photocatalytic activity. In particularly, the coupling of the bandgap structure... heterojunction nanocatalyst with high photocatalytic activity [J]. Inorganic Chemistry, 2009, 48: 1819-1825. [9] HAMEED A, MONTINI T, GOMBAC V, FORNASIERO P. Photocatalytic decolourization of dyes on NiO-ZnO......
含量达到18.47%,说明在1000 ℃的氧化温度下Ni-Cr-Fe多孔合金表面形成一层氧化膜,且在氧化层中Cr和Fe含量明显增高,说明Ni-Cr-Fe合金表面在氧化初期迅速生成Cr2O3和Fe3O4,其中Fe3O4又较容易分解为Fe2O3和FeO,FeO在低温阶段不稳定.随着氧化时间的增长Cr2O3和Fe2O3与后续生成的NiO继续反应,最终生成由Cr2O3及尖晶石结构的......
of Al would be decreased to some extent. NiO and Cr2O3 were therefore formed at the initial stage of oxidation. The appearance of the NiCr2O4 spinel must result from the transient oxidation in which......
to monoclinic NiMoO4 according to the JCPDS database No.33-0948 [43-46]. Figure 1 (inset) shows XRD pattern of bulk NiMoO4 . Impurities of secondary phases such as NiO, MoO3, and others were not detected......
, LI S,CHEN Q. A hydrometallurgical route to produce ZnO nanoparticles and NiO strips from the spent Ni/ZnO catalyst [J]. Hydrometallurgy, 2012, 121-124: 107-115. [9] PARK Y J, FRAY D J. Separation......
