TY - JOUR
T1 - Efficient Solar-Driven Nitrogen Fixation over Carbon–Tungstic-Acid Hybrids
AU - Li, Xiaoman
AU - Wang, Wenzhong
AU - Jiang, Dong
AU - Sun, Songmei
AU - Zhang, Ling
AU - Sun, Xiang
N1 - Funding Information:
This work was supported by the National Basic Research Program of China (2013CB933200) and the National Natural Science Foundation of China (51272269, 51272303 and 51472260).
Publisher Copyright:
© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2016/9/19
Y1 - 2016/9/19
N2 - Ammonia synthesis under mild conditions is of supreme interest. Photocatalytic nitrogen fixation with water at room temperature and atmospheric pressure is an intriguing strategy. However, the efficiency of this method has been far from satisfied for industrialization, mainly due to the sluggish cleavage of the N≡N bond. Herein, we report a carbon–tungstic-acid (WO3⋅H2O) hybrid for the co-optimization of N2activation as well as subsequent photoinduced protonation. Efficient ammonia evolution reached 205 μmol g−1h−1over this hybrid under simulated sunlight. Nitrogen temperature-programmed desorption revealed the decisive role of carbon in N2adsorption. Photoactive WO3⋅H2O guaranteed the supply of electrons and protons for subsequent protonation. The universality of carbon modification for enhancing the N2reduction was further verified over various photocatalysts, shedding light on future materials design for ideal solar energy utilization.
AB - Ammonia synthesis under mild conditions is of supreme interest. Photocatalytic nitrogen fixation with water at room temperature and atmospheric pressure is an intriguing strategy. However, the efficiency of this method has been far from satisfied for industrialization, mainly due to the sluggish cleavage of the N≡N bond. Herein, we report a carbon–tungstic-acid (WO3⋅H2O) hybrid for the co-optimization of N2activation as well as subsequent photoinduced protonation. Efficient ammonia evolution reached 205 μmol g−1h−1over this hybrid under simulated sunlight. Nitrogen temperature-programmed desorption revealed the decisive role of carbon in N2adsorption. Photoactive WO3⋅H2O guaranteed the supply of electrons and protons for subsequent protonation. The universality of carbon modification for enhancing the N2reduction was further verified over various photocatalysts, shedding light on future materials design for ideal solar energy utilization.
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U2 - 10.1002/chem.201603277
DO - 10.1002/chem.201603277
M3 - Article
AN - SCOPUS:84982224384
SN - 0947-6539
VL - 22
SP - 13819
EP - 13822
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
IS - 39
ER -