Decorating non-noble metal plasmonic Al on a TiO2/Cu2O photoanode to boost performance in photoelectrochemical water splitting

Zhang, Shaoce; Liu, Zhifeng; Yan, Weiguo; Guo, Zhengang; Ruan, Mengnan

doi:10.1016/s1872-2067(20)63637-3

Cited by 92 publications

(29 citation statements)

References 55 publications

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“…[8,9] Photoelectrochemical (PEC) water splitting is a promising method for converting endless solar energy into available hydrogen energy in an environmentally friendly way. [10][11][12][13] As the most important component of PEC water splitting, numerous photoelectrodes including n-type semiconductors and p-type semiconductors have been developed, such as TiO 2 , [14,15] BiVO 4 , [16,17] ZnO, [18,19] ZnIn 2 S 4 , [20,21] Fe 2 O 3 , [22,23] WO 3 , [24,25] CdS, [26,27] Cu 2 O [28,29] and CuO. [30,31] In particular, WO 3 has captured wide attention as an outstanding semiconductor photoanode among these photoelectrodes due to the moderate hole diffusion length of about 150 nm, satisfactory electron transmission capability of about 12 cm 2 V À 1 s À 1 and opportune band gap of 2.5~2.8 eV.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional WO₃/NiCo₂O₄ heterojunction with extensively exposed bimetallic Ni/Co redox reaction sites for efficient photoelectrochemical water splitting

et al. 2020

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The enhanced separation and injection efficiencies of photogenerated carriers is essential to improve the photoelectrochemical (PEC) performance of WO3 photoanode. In this work, we firstly synthesized WO3/NiCo2O4 heterojunction through simple hydrothermal‐annealing method as well as investigate the effect and mechanism of NiCo2O4 on WO3 for PEC performances. The measurements demonstrate that the nano‐needle NiCo2O4 grown on the surface of WO3 induces the bimetallic Ni/Co redox reaction sites extensively exposed to the electrolyte, which is beneficial to enhance the PEC performances of WO3 photoanode, such as photocurrent density improved by four times (0.84 mA/cm2 at 1.23 V vs. RHE) as well as more negative initial potential (∼280 mV) in contrast to bare WO3. Further investigation shows the remarkable enhancement of PEC performances is attributed to improved surface reaction kinetics, the enhanced injection efficiency and separation efficiency of photogenerated carriers due to the co‐catalyst effect of NiCo2O4 and the formation of WO3/NiCo2O4 heterojunction. This work provides reference for application of heterojunction with co‐catalyst function, which is beneficial to the development and application of similar structures.

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Section: Introductionmentioning

confidence: 99%

Multifunctional WO₃/NiCo₂O₄ heterojunction with extensively exposed bimetallic Ni/Co redox reaction sites for efficient photoelectrochemical water splitting

et al. 2020

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“…Al has also proven to be an efficient non-noble plasmonic metal. It has been very recently used in a TiO 2 /Cu 2 O/Al/Al 2 O 3 core–shell photoanode, boosting light absorption and electromagnetic field and enabling a photocurrent density of 4.52 mA cm –2 at 1.23 V RHE . In this structure, an ultrathin Al 2 O 3 layer was also spontaneously generated and provided passivation that increased the stability of the photoelectrode.…”

Section: Nanomaterial-based Systems For Photoelectrochemical Energy C...mentioning

confidence: 99%

Noble-Metal-Free Multicomponent Nanointegration for Sustainable Energy Conversion

et al. 2021

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Global energy and environmental crises are among the most pressing challenges facing humankind. To overcome these challenges, recent years have seen an upsurge of interest in the development and production of renewable chemical fuels as alternatives to the nonrenewable and high-polluting fossil fuels. Photocatalysis, photoelectrocatalysis, and electrocatalysis provide promising avenues for sustainable energy conversion. Single-and dual-component catalytic systems based on nanomaterials have been intensively studied for decades, but their intrinsic weaknesses hamper their practical applications. Multicomponent nanomaterial-based systems, consisting of three or more components with at least one component in the nanoscale, have recently emerged. The multiple components are integrated together to create synergistic effects and hence overcome the limitation for outperformance. Such higher-efficiency systems based on nanomaterials will potentially bring an additional benefit in balance-of-system costs if they exclude the use of noble metals, considering the expense and sustainability. It is therefore timely to review the research in this field, providing guidance in the development of noble-metal-free multicomponent nanointegration for sustainable energy conversion. In this work, we first recall the fundamentals of catalysis by nanomaterials, multicomponent nanointegration, and reactor configuration for water splitting, CO 2 reduction, and N 2 reduction. We then systematically review and discuss recent advances in multicomponent-based photocatalytic, photoelectrochemical, and electrochemical systems based on nanomaterials. On the basis of these systems, we further laterally evaluate different multicomponent integration strategies and highlight their impacts on catalytic activity, performance stability, and product selectivity. Finally, we provide conclusions and future prospects for multicomponent nanointegration. This work offers comprehensive insights into the development of cost-competitive multicomponent nanomaterial-based systems for sustainable energy-conversion technologies and assists researchers working toward addressing the global challenges in energy and the environment.

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“…Consequently, the photocurrent density could reach 4.52 mA cm À2 at 1.23 V versus RHE, which was 1.84 times higher than that of TiO 2 /Cu 2 O core/shell heterojunction. [48]…”

Section: Photoelectrochemical Water Splittingmentioning

confidence: 99%

Plasmonic Metal Nanostructures as Efficient Light Absorbers for Solar Water Splitting

Wang

Liang

Qin

et al. 2021

Adv Energy and Sustain Res

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The increasing use of traditional fossil fuels has led to serious environmental concerns, such as air pollution, global warming, and possible climate anomalies. For the purpose of sustaining economic growth, solar energy has become a considerably promising energy alternative to alleviate the energy crisis and environmental stress. [1] During the past few decades, photo-driven catalytic reactions have received widespread attention because of the ability of converting inexhaustible solar energy into available chemical energy, especially the clean hydrogen energy source. [2] However, the current photocatalyst materials are far from satisfactory and the actual catalytic performance is still insufficient for large-scale practical applications.Plasmonic metal (typically Au, Ag, Cu, and Al) nanoparticles (NPs) exhibit fantastic localized surface plasmon resonance (LSPR) property, which refers to the collective oscillation of free electrons around particles' surface when the incident light matches the resonant frequency of the collective electrons. [3] Through engineering the size, morphology, composition, and dielectric environment of NPs, LSPR properties can be customized to achieve optimized performances. Surface plasmon decays quickly, so the energy stored in the plasma can be released through far-field light scattering, nearfield electromagnetic field enhancement, and hot carrier generation. The strong interaction of plasmonic metal nanostructures with light makes them become commendable light absorber materials, and the absorbed energy can be efficiently transferred into the adjacent semiconductors or adsorbates. [4] Therefore, the introduction of plasmonic metal nanostructures into catalytic reactions provides a promising avenue to maximize the utilization of sunlight and facilitate the conversion from the inexhaustible solar energy into usable chemical energy. [5] In this review, we focus on the LSPR properties of plasmonic metal nanostructures and highlight recent research progress on the applications of plasmonic metal nanostructures in photocatalytic, photoelectrochemical (PEC) (electro-assisted photocatalytic), and photo-assisted electrocatalytic water splitting technologies, including the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER). In addition, the relevant structure design, mechanism exploration, and performance promotion are summarized and discussed. Finally, we put forward the perspectives and challenges in plasmon-enhanced catalysis, especially photo-assisted electrocatalysis, which has not been extensively studied at present but has significant research value. Overall, plasmonic photocatalysts hold great promises in the future and there is plenty of room to achieve the theoretically optimal catalytic performances.

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Decorating non-noble metal plasmonic Al on a TiO2/Cu2O photoanode to boost performance in photoelectrochemical water splitting

Cited by 92 publications

References 55 publications

Multifunctional WO₃/NiCo₂O₄ heterojunction with extensively exposed bimetallic Ni/Co redox reaction sites for efficient photoelectrochemical water splitting

Multifunctional WO₃/NiCo₂O₄ heterojunction with extensively exposed bimetallic Ni/Co redox reaction sites for efficient photoelectrochemical water splitting

Noble-Metal-Free Multicomponent Nanointegration for Sustainable Energy Conversion

Plasmonic Metal Nanostructures as Efficient Light Absorbers for Solar Water Splitting

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Decorating non-noble metal plasmonic Al on a TiO2/Cu2O photoanode to boost performance in photoelectrochemical water splitting

Cited by 92 publications

References 55 publications

Multifunctional WO3/NiCo2O4 heterojunction with extensively exposed bimetallic Ni/Co redox reaction sites for efficient photoelectrochemical water splitting

Multifunctional WO3/NiCo2O4 heterojunction with extensively exposed bimetallic Ni/Co redox reaction sites for efficient photoelectrochemical water splitting

Noble-Metal-Free Multicomponent Nanointegration for Sustainable Energy Conversion

Plasmonic Metal Nanostructures as Efficient Light Absorbers for Solar Water Splitting

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Multifunctional WO₃/NiCo₂O₄ heterojunction with extensively exposed bimetallic Ni/Co redox reaction sites for efficient photoelectrochemical water splitting

Multifunctional WO₃/NiCo₂O₄ heterojunction with extensively exposed bimetallic Ni/Co redox reaction sites for efficient photoelectrochemical water splitting