Recent advances in CO reduction with renewable reductants under hydrothermal conditions: towards efficient and net carbon benefit CO conversion.

The ever-growing atmospheric CO concentration threatening the environmental sustainability of humankind makes the reduction of CO to chemicals or fuels an ideal solution. Two priorities are anticipated for the conversion technology, high efficiency and net carbon benefit, to ensure the mitigation of the CO problem both promptly and sustainably. Until now, catalytic hydrogenation or solar/electro-chemical CO conversion have achieved CO reduction promisingly while, to some extent, compromising to fulfill the two rules, and thus alternative approaches for CO reduction are necessary.