首页|Hydroxylated metal-organic-layer nanocages anchoring single atomic cobalt sites for robust photocatalytic CO2 reduction

Hydroxylated metal-organic-layer nanocages anchoring single atomic cobalt sites for robust photocatalytic CO2 reduction

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Assembly of two-dimensional(2D)metal-organic layers(MOLs)based on the hard and soft acid-base theorem represents an exquisite strategy for the construction of photocatalytic platforms in virtue of the highly exposed active sites,much improved mass transport,and greatly elevated stability.Herein,nanocages composed of MOLs are produced for the first time through a cosolvent approach utilizing zirconium-based UiO-66-(OH)2 as the structural precursor.To endow the catalytic activity for CO2 conversion,single atomic Co2+sites are appended to the Zr-oxo nodes of the MOL cages,demonstrating a remarkable CO yield of 7.74 mmol·g-1·h-1 and operational stability of 97.1％product retention after five repeated cycles.Such an outstanding photocatalytic performance is mainly attributed to the unique nanocage morphology comprising enormous 2D nanosheets for augmented Co2+exposure and the abundant surface hydroxyl groups for local CO2 enrichment.This work underlines the tailoring of both metal-organic framework(MOF)morphology and functionality to boost the turnover rate of photocatalytic CO2 reduction reaction(CO2RR).

photocatalytic CO2 reductionmetal-organic layernanocagesingle-atom catalystco-catalyst

Weiyi Pan、Zhihe Wei、Yanhui Su、Yuebin Lian、Zhangyi Zheng、Huihong Yuan、Yongze Qin、Xulan Xie、Qianqian Bai、Zhenyang Jiao、Wei Hua、Jinzhou Chen、Wenjun Yang、Zhao Deng、Yang Peng

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Soochow Institute for Energy and Materials Innovations,College of Energy,Soochow University,Suzhou 215006,China

Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province,Soochow University,Suzhou 215006,China

School of Photoelectric Engineering,Changzhou institute of technology,Changzhou 213032,China

Jiangsu Key Laboratory for Advanced Negative Carbon Technologies,Soochow University,Suzhou 215123,China

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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation of Jiangsu ProvinceNatural Science Foundation of Jiangsu ProvinceNatural Science Foundation of Jiangsu ProvinceSix Talent Peaks Project in Jiangsu ProvincePriority Academic Program Development(PAPD)of Jiangsu Higher Education InstitutionsSoochow Municipal Laboratory for low carbon technologies and industries

2207519322072101BK20221239BK20211306BK20220027TD-XCL-006

2024

10.1007/s12274-023-6083-2

纳米研究(英文版)

纳米研究(英文版)

CSTPCD
ISSN：
年,卷(期)：2024.17(4)
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