DataVXACS Materials LettersPaper
journal article·2022-12-05

Atomically Thin Zn2GeO4 Nanoribbons: Facile Synthesis and Selective Photocatalytic CO2 Reduction toward CO

Yan Yuan, Hui Dai, Haoqiang Chi, Wa Gao, Qi Liu, Cheng Ding, Yan Shen, Zheng Tang, Chen Zhuang, Yong Yang, Yongcai Zhang, Zhigang Zou, Yong Zhou

ACS Materials Letters· Volume 4· Issue 12
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Source abstract

Abstract

Atomically thin Zn2GeO4 (ZGO) nanoribbons exclusively exposing the {100} facet of ∼1 nm in thickness were successfully prepared via convenient photo-oxidation exfoliation of the ZGO–ethylenediamine hybrid at room temperature. The ultrathin ZGO nanoribbons [abbreviated as ZGO(100)] exhibit efficient and dominantly selective CO2 photoreduction performance into CO with the evolution yield of up to 20.81 μmol g–1 h–1 in the presence of water vapor, in much contrast to only CH4 production of 0.67 μmol g–1 h–1 for (010), exposing the thick ZGO nanobelts reported previously. The atomically thin structure of ZGO(100) shortens the migration distance of charge carriers onto the surface from the interior and allows more electrons to survive and accumulate on the surface, thus benefiting the activation and reduction of CO2. The density function theory calculation reveals that the formed CO* is inclined to escape from the exclusively exposed {100} facet of the ultrathin ZGO nanoribbon rather than be further protonated to derive CHO*, a vital intermediate for CH4 formation, leading ZGO(100) to be an ideal platform for catalytically selective CO production. This work would not only enrich atomically thin catalyst materials but also render a new platform for the development of ternary semiconductors with outstanding performance in CO2 photoconversion.
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Research context

NanomaterialsElectronic materialsCatalysis & surfaces

OpenAlex topics: Advanced Photocatalysis Techniques · Ga2O3 and related materials · Catalytic Processes in Materials Science

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Modern Acoustics (MOE), Institute of Acoustics, School of Physics, National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, Jiangsu 210093, P. R. China

College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, P. R. China

Tiangong University, School of Physical Science and Technology, Tianjin 300387, P. R. China

School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, P. R. China

Key Laboratory of Soft Chemistry and Functional Materials (MOE), Nanjing University of Science and Technology, Nanjing 210094, P. R. China

Yangzhou University, School of Chemistry & Chemical Engnieering, Yangzhou, Jiangsu 225009, P. R. China

School of Science and Engineering, The Chinese University of Hong Kong (Shenzhen), Shenzhen, Guangzhou 518172, P. R. China

Funding

Guangdong Province Introduction of Innovative R&D Team · Ministry of Science and Technology of the People's Republic of China · Natural Science Foundation of Jiangsu Province · National Natural Science Foundation of China · University Development Fund

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