Selective light absorber-assisted single nickel atom catalysts for ambient sunlight-driven CO2 methanation

被引：261

作者：

Li, Yaguang ^{[1
]}

Hao, Jianchao ^{[1
]}

Song, Hui ^{[2
,3
]}

Zhang, Fengyu ^{[1
]}

Bai, Xianhua ^{[1
]}

Meng, Xianguang ^{[4
]}

Zhang, Hongyuan ^{[5
]}

Wang, Shufang ^{[1
]}

Hu, Yong ^{[5
]}

Ye, Jinhua ^{[2
,3
,6
,7
]}

机构：

[1] Hebei Univ, Coll Phys Sci & Technol, Hebei Key Lab Opt Elect Informat & Mat, Baoding 071002, Peoples R China

[2] Hokkaido Univ, Grad Sch Chem Sci & Engn, Sapporo, Hokkaido 0600814, Japan

[3] NIMS, Int Ctr Mat Nanoarchitecton WPI MANA, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan

[4] North China Univ Sci & Technol, Coll Mat Sci & Engn, Hebei Prov Key Lab Inorgan Nonmetall Mat, Tangshan 063210, Hebei, Peoples R China

[5] Zhejiang Normal Univ, Dept Chem, Jinhua 321004, Zhejiang, Peoples R China

[6] Tianjin Univ, Sch Mat Sci & Engn, TJU NIMS Int Collaborat Lab, Tianjin 300072, Peoples R China

[7] Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China

来源：

NATURE COMMUNICATIONS | 2019年 / 10卷

关键词：

CARBON-DIOXIDE; HIGHLY EFFICIENT; CONVERSION; OXIDATION; OPPORTUNITIES; ACTIVATION; CHALLENGES; SUPPORT; CH4;

D O I：

10.1038/s41467-019-10304-y

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Ambient sunlight-driven CO2 methanation cannot be realized due to the temperature being less than 80 degrees C upon irradiation with dispersed solar energy. In this work, a selective light absorber was used to construct a photothermal system to generate a high temperature (up to 288 degrees C) under weak solar irradiation (1 kW m(-2)), and this temperature is three times higher than that in traditional photothermal catalysis systems. Moreover, ultrathin amorphous Y2O3 nanosheets with confined single nickel atoms (SA Ni/Y2O3) were synthesized, and they exhibited superior CO2 methanation activity. As a result, 80% CO2 conversion efficiency and a CH4 production rate of 7.5 L m(-2) h(-1) were achieved through SA Ni/Y2O3 under solar irradiation (from 0.52 to 0.7 kW m(-2)) when assisted by a selective light absorber, demonstrating that this system can serve as a platform for directly harnessing dispersed solar energy to convert CO2 to valuable chemicals.

引用

页数：9

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