Metal oxides are a promising catalyst for photoelectrochemical (PEC) water splitting to produce hydrogen as alternative energy. However, their effectiveness is restricted at low voltage. A research team led by scholars from City University of Hong Kong (CityU), Australia and Germany successfully mediated the poor charge carrier transport at low voltage by adding phosphorus to a metal oxide catalyst, which reduced energy losses during water splitting. The findings offer a potential option for achieving carbon neutrality.
The research was co-led by Professor Ng Yun-hau of CityU's School of Energy and Environment (SEE) and researchers from Australia and Germany. Their findings were published in the scientific journal Nature Communications, titled "Low-bias photoelectrochemical water splitting via mediating trap states and small polaron hopping."
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