A study of mechano-catalysts for overall water splitting
A study of mechano-catalysts for overall water splitting
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DOI：
10.1021/jp993441h
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发表时间：
2000-02-03
影响因子：
3.3
通讯作者：
Domen, K
中科院分区：
文献类型：
--
作者：
Hara, M;Komoda, M;Domen, K
为了揭示反应机理，考察了Cu2O、NiO和CO3O4的机械催化全水裂解反应。实验结果表明，这些氧化物中的金属元素是在反应过程中生成的。在相同的反应条件下，当金属粉末将水还原为Hz时，元素金属Cu2O、NiO和Co分别被氧化成Cu2O、NiO和Co3O4。被金属氧化物覆盖的金属颗粒同时产生O-2和H-2。这些结果表明，金属和金属氧化物之间的氧化还原反应可能是机械催化整体水分解形成H-2和O-2的原因。
Mechano-catalytic overall water splitting on Cu2O, NiO, and CO3O4 was investigated in order to reveal the reaction mechanism. The experimental results indicated that metallic elements of these oxides were generated during the reaction. Also, elemental metals Cu, Ni, and Co were oxidized into Cu2O, NiO, and Co3O4, respectively, when water was reduced into Hz by the metal powders under the same reaction condition. The metallic particles covered with the metal oxides evolved both O-2 and H-2 These results suggest that a redox reaction between the metal and metal oxide may be responsible for H-2 and O-2 formation of the mechano-catalytic overall water splitting.