Nickel and La Ni alloy electrode materials prepared by metal vapor synthesis were studied by XRD, XPS and magnetic measurement. The experimental results show that La Ni alloy is formed from La and Ni powders. The pa...Nickel and La Ni alloy electrode materials prepared by metal vapor synthesis were studied by XRD, XPS and magnetic measurement. The experimental results show that La Ni alloy is formed from La and Ni powders. The particle size of La Ni alloy and Ni powders are very small with average diameter <4 nm. Nickel is mainly in zero valent state and lanthanum exists as both metallic La and La 2O 3. The cathodic polarization characteristics of the electrodes obtained from above powders in alkaline solutions were also studied. It is found that the La Ni alloy electrode has a higher electrocatalytic activity than the Ni and La electrodes.展开更多
文摘Nickel and La Ni alloy electrode materials prepared by metal vapor synthesis were studied by XRD, XPS and magnetic measurement. The experimental results show that La Ni alloy is formed from La and Ni powders. The particle size of La Ni alloy and Ni powders are very small with average diameter <4 nm. Nickel is mainly in zero valent state and lanthanum exists as both metallic La and La 2O 3. The cathodic polarization characteristics of the electrodes obtained from above powders in alkaline solutions were also studied. It is found that the La Ni alloy electrode has a higher electrocatalytic activity than the Ni and La electrodes.
