Ni0.85Co0.15WO4 for Photocatalytic Reduction of CO2 Under Mild Conditions with High Activity and Selectivity

Tuning the Surface Electronic Structure of Amorphous NiWO4 by Doping Fe as an Electrocatalyst for OER

“…The surface morphology and structure of amorphous NiWO 4 and Fe-doped amorphous NiWO 4 were analyzed by field emission scanning electron microscopy (FE-SEM). Figure a–c and d–f reveals the low to high magnification FE-SEM images of amorphous NiWO 4 and Fe-doped amorphous NiWO 4 , respectively, and shows the random sphere-like morphology along with porous nature. , The rough nature of Fe-doped amorphous NiWO 4 enhances the mass transport between the electrolyte and catalytic surfaces which highly improves the catalytic activity . The low to high magnification FE-SEM analysis was carried out for annealed NiWO 4 , and the results are shown in Figure S1­(a–c) indicating that the materials exist in a non-uniform size distribution and a quasi spherical morphology generated by the self-agglomeration of annealed NiWO 4 . , After the doping of Fe, the growth process is random and dominant which will lead to spontaneous aggregation of the NiWO 4 crystal and the formation of a larger crystal which is thermodynamically favored than the small crystal as shown in Figure S1­(d–f).…”

“…40,41 The rough nature of Fe-doped amorphous NiWO 4 enhances the mass transport between the electrolyte and catalytic surfaces which highly improves the catalytic activity. 42 The low to high magnification FE-SEM analysis was carried out for annealed NiWO 4 , and the results are shown in Figure S1(a−c) indicating that the materials exist in a non-uniform size distribution and a quasi spherical morphology generated by the self-agglomeration of annealed NiWO 4 . 43,44 After the doping of Fe, the growth process is random and dominant which will lead to spontaneous aggregation of the NiWO 4 crystal and the formation of a larger crystal which is thermodynamically favored than the small crystal as shown in Figure S1(d−f).…”

Preparation of Iron‐Doped Carbon Dots and Their Application in Photocatalytic Reduction of Carbon Dioxide

“…Serious environmental problems such as global warming, acid rain, and sea level rise have resulted. [1][2][3][4][5] Technology for CO 2 capture, storage, and absorption have been reported over the past few decades, but the transformation of CO 2 to valuable hydrocarbons products such as carbon monoxide, methanol, formic acid, and ethanol may be the long-term solution that is needed to mitigate carbon emissions. [6,7] CO 2 conversion is not only a feasible way to reduce CO 2 emissions and abate the greenhouse effect, but it also provides a sustainable path to realize CO 2 recycling.…”

“…Consumption of fossil fuels has caused a continual increase in the level of atmospheric CO 2 . Serious environmental problems such as global warming, acid rain, and sea level rise have resulted [1–5] . Technology for CO 2 capture, storage, and absorption have been reported over the past few decades, but the transformation of CO 2 to valuable hydrocarbons products such as carbon monoxide, methanol, formic acid, and ethanol may be the long‐term solution that is needed to mitigate carbon emissions [6,7] .…”