They dissolved cobalt and phosphate in water and then zapped it with electricity through an electrode.
他们把钴和磷酸盐溶解到水溶液中，然后，通过电极对它们进行电解。
2
The cobalt and phosphate form a thin-film catalyst around the electrode that then use electrons from the electrode to split the oxygen from water.
钴和磷酸盐在电极周围形成了薄膜型的催化剂，这些催化剂就利用电极发射的电子从水中分解氢和氧。
3
The key component in the process is a catalyst -- cobalt metal, phosphate and an electrode, placed in water -- that produces oxygen gas from water, while another catalyst produces hydrogen gas.