Selective photocatalytic reduction CO2 to CH4 on ultrathin TiO2 nanosheet via coordination activation
Selective photocatalytic reduction CO2 to CH4 on ultrathin TiO2 nanosheet via coordination activation
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通过配位活化在超薄 TiO2 纳米片上选择性光催化还原 CO2 为 CH4
DOI:
10.1016/j.apcatb.2021.120000
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发表时间:
2021-02
期刊:
影响因子:
--
通讯作者:
Ling Wu
中科院分区:
文献类型:
--
作者:
Zhiwen Wang;Qiang Wan;Yingzhang Shi;Huan Wang;Yueyue Kang;Shuying Zhu;Sen Lin;Ling Wu
Ultrathin TiO2nanosheet (NST) with abundant Ti3+sites is developed as a photocatalyst which exhibits a high yield (147.2 μmol g−1h−1) and selectivity (96.8%) for CO2to CH4. The results of in situ FTIR, in situ EPR and density functional theory (DFT) calculation suggest that CO2would be selectively activated on NST surface via forming the bridging Ti···CO2−···Ti coordination species which not only lowers the activation energy barrier, but also determines the selectivity of CH4. Additionally, NST with the better separation and transfer ability for photogenerated electrons-holes can fleetly supply the electrons to CO2molecules for high efficiently producing CH4via the Ti-C coordination bond. Finally, a possible mechanism of the synergistic effect about coordination-activation and photocatalysis is discussed at a molecule level. This work would offer a perspective for designing an effective photocatalyst and tailoring the selectivity of products by coordination activation.
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影响因子:
12.9
作者:
Song Yujie;Wang Huan;Wang Zhitong;Guo Binbin;Jing Kaigiang;Li Yanjun;Wu Ling
通讯作者:
Wu Ling
DOI:
10.29363/nanoge.nfm.2021.084
发表时间:
2021-09
期刊:
Proceedings of the nanoGe Fall Meeting 2021
影响因子:
--
作者:
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通讯作者:
M. Koper
DOI:
10.1016/j.apcatb.2020.119156
发表时间:
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期刊:
Applied Catalysis B: Environmental
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影响因子:
22.1
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