Plasma-treatment induced H2O dissociation for the enhancement of photocatalytic CO2 reduction to CH4 over graphitic carbon nitride

Jiang, Kexin; Zhu, Li; Wang, Zihua; Liu, Kang; Li, Hongmei; Hu, Junhua; Pan, Hao; Fu, Junwei; Zhang, Ning; Qiu, Xiaoqing

doi:10.1016/j.apsusc.2019.145173

Cited by 46 publications

(22 citation statements)

References 54 publications

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“… 177 These types of materials are studied intensively in recent years due to their mass producibility. 178 , 179 Therefore, in the following, nanosheets and nanoflakes will also be categorized as 2D materials. Tables 7 , 8 , and 9 summarize some of the recent advances on metal–2D hybrid systems.…”

Section: Plasmonic Metal–2dmentioning

confidence: 99%

Hybrid Plasmonic Nanomaterials for Hydrogen Generation and Carbon Dioxide Reduction

et al. 2022

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The successful development of artificial photosynthesis requires finding new materials able to efficiently harvest sunlight and catalyze hydrogen generation and carbon dioxide reduction reactions. Plasmonic nanoparticles are promising candidates for these tasks, due to their ability to confine solar energy into molecular regions. Here, we review recent developments in hybrid plasmonic photocatalysis, including the combination of plasmonic nanomaterials with catalytic metals, semiconductors, perovskites, 2D materials, metal–organic frameworks, and electrochemical cells. We perform a quantitative comparison of the demonstrated activity and selectivity of these materials for solar fuel generation in the liquid phase. In this way, we critically assess the state-of-the-art of hybrid plasmonic photocatalysts for solar fuel production, allowing its benchmarking against other existing heterogeneous catalysts. Our analysis allows the identification of the best performing plasmonic systems, useful to design a new generation of plasmonic catalysts.

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Section: Plasmonic Metal–2dmentioning

confidence: 99%

Hybrid Plasmonic Nanomaterials for Hydrogen Generation and Carbon Dioxide Reduction

et al. 2022

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“…Figure 3e reports FTIR spectra, in which Ru/MoO2 shows the strongest hydroxyl response signal among those of MoO2 and Ru, in the range between 2900 cm -1 ~ 3500 cm -1 . [39][40][41][42][43] In the H2O adsorption tests (Figure 3f and S12), the higher current density difference between the cases with and without H2O proves the larger H2O adsorption/activation ability of Ru/MoO2 with Ru-O-Mo sites, [44] which after normalization is between ~2 and ~10 times higher than that of MoO2 and Ru, respectively. These experimental results confirm the DFT theoretical predictions on H2O adsorption/dissociation energy.…”

Section: Introductionmentioning

confidence: 99%

Paired Ru‒O‒Mo ensemble for efficient and stable alkaline hydrogen evolution reaction

Liu

et al. 2021

Nano Energy

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Electrocatalytic hydrogen evolution reaction (HER) in alkaline media is a promising electrochemical energy conversion strategy. Ruthenium (Ru) is an efficient catalyst with a desirable cost for HER, however, the sluggish H2O dissociation process, due to the low H2O adsorption on its surface, currently hampers the performances of this catalyst in alkaline HER. Herein, we demonstrate that the H2O adsorption improves significantly by the construction of Ru-O-Mo sites. We prepared Ru/MoO2 catalysts with Ru-O-Mo sites through a facile thermal treatment process and assessed the creation of Ru-O-Mo interfaces by transmission electron microscope (TEM) and extended X-ray absorption fine structure (EXAFS). By using Fourier-transform infrared spectroscopy (FTIR) and H2O adsorption tests, we proved Ru-O-Mo sites have tenfold stronger H2O adsorption ability than that of Ru catalyst. The catalysts with Ru-O-Mo sites exhibited a state-of-the-art overpotential of 16 mV at 10 mA cm -2 in 1 M KOH electrolyte, demonstrating a threefold reduction than the previous bests of Ru (59 mV) and commercial Pt (31 mV) catalysts. We proved the stability of these performances over 40 hours without decline. These results could open a new path for designing efficient and stable catalysts.

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“…Furthermore, mechanism studies relating to surface reactions (i.e., dissociation of H 2 O to give protons and reduction of CO 2 ) can be understood experimentally from CO 2 -temperature program desorption (CO 2 -TPD), CO 2 adsorption isotherms to investigate CO 2 desorption step, and from DRIFTS to investigate H 2 O dissociation step. [215,216] Such studies can further validate DFT calculated reaction mechanisms.…”

Section: Reaction Mechanismsmentioning

confidence: 79%

Emerging Strategies for CO₂ Photoreduction to CH₄: From Experimental to Data‐Driven Design

Cheng

Sun

Lim

et al. 2022

Advanced Energy Materials

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been described as a key metric for understanding the effects of global warming due to its direct impact on climate change. [2] Extensive modeling with energy-economyenvironment scenarios or projections to keep the global temperature from rising above 1.5 °C by the year 2100 shows that such a positive outlook is only possible if the global energy system is completely decarbonized (i.e., net-zero global CO 2 emissions) by mid-century, followed by active CO 2 removal (i.e., carbon-negative) in the second half of the century. [3] The catalytic conversion of CO 2 to valuable energy-related products (e.g., syngas, CH 4 , CH 3 OH, and longer-chain hydrocarbons) [4] by thermal reforming and hydrogenation, [5][6][7][8][9][10][11] electrocatalysis, [12][13][14] or photocatalysis [15] could occupy an important position in a future carbon-negative economy by directly replacing nonrenewable sources of these molecules, provided that the energy inputs to these processes are themselves derived from renewable sources. [16,17] In this regard, photocatalytic strategies stand out by not requiring a secondary medium of energy storage, and being able to realize the CO 2 conversion into high value-added fuels directly via renewable solar energy without external energy input. [18] Indeed, photocatalytic CO 2 reduction has been considered to be a "kill two birds with one stone" approach for sustainable energy production and greenhouse gas reduction. [19] In contrast, thermocatalytic approachesThe solar-energy-driven photoreduction of CO 2 has recently emerged as a promising approach to directly transform CO 2 into valuable energy sources under mild conditions. As a clean-burning fuel and drop-in replacement for natural gas, CH 4 is an ideal product of CO 2 photoreduction, but the development of highly active and selective semiconductor-based photocatalysts for this important transformation remains challenging. Hence, significant efforts have been made in the search for active, selective, stable, and sustainable photocatalysts. In this review, recent applications of cutting-edge experimental and computational materials design strategies toward the discovery of novel catalysts for CO 2 photocatalytic conversion to CH 4 are systematically summarized. First, insights into effective experimental catalyst engineering strategies, including heterojunctions, defect engineering, cocatalysts, surface modification, facet engineering, and single atoms, are presented. Then, datadriven photocatalyst design spanning density functional theory (DFT) simulations, high-throughput computational screening, and machine learning (ML) is presented through a step-by-step introduction. The combination of DFT, ML, and experiments is emphasized as a powerful solution for accelerating the discovery of novel catalysts for photocatalytic reduction of CO 2 . Last, challenges and perspectives concerning the interplay between experiments and data-driven rational design strategies for the industrialization of large-scale CO 2 photoreduction technologies are described.

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Plasma-treatment induced H2O dissociation for the enhancement of photocatalytic CO2 reduction to CH4 over graphitic carbon nitride

Cited by 46 publications

References 54 publications

Hybrid Plasmonic Nanomaterials for Hydrogen Generation and Carbon Dioxide Reduction

Hybrid Plasmonic Nanomaterials for Hydrogen Generation and Carbon Dioxide Reduction

Paired Ru‒O‒Mo ensemble for efficient and stable alkaline hydrogen evolution reaction

Emerging Strategies for CO₂ Photoreduction to CH₄: From Experimental to Data‐Driven Design

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Plasma-treatment induced H2O dissociation for the enhancement of photocatalytic CO2 reduction to CH4 over graphitic carbon nitride

Cited by 46 publications

References 54 publications

Hybrid Plasmonic Nanomaterials for Hydrogen Generation and Carbon Dioxide Reduction

Hybrid Plasmonic Nanomaterials for Hydrogen Generation and Carbon Dioxide Reduction

Paired Ru‒O‒Mo ensemble for efficient and stable alkaline hydrogen evolution reaction

Emerging Strategies for CO2 Photoreduction to CH4: From Experimental to Data‐Driven Design

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Emerging Strategies for CO₂ Photoreduction to CH₄: From Experimental to Data‐Driven Design