Integrating Ru-modulated CoP nanosheets binary co-catalyst with 2D g-C3N4 nanosheets for enhanced photocatalytic hydrogen evolution activity

Meng, Suci; An, Pengfei; Chen, Lijie; Sun, Shichao; Xie, Zhipeng; Chen, Min

doi:10.1016/j.jcis.2020.11.066

Cited by 68 publications

(27 citation statements)

References 55 publications

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“…Meng et al further constructed 2D/2D Ru-modulated CoP/g-C 3 N 4 Schottky junction through a facial self-assembly approach to further enhance the photocatalytic hydrogen evolution (Figure 8f). [151] Upon light irradiation, Ru-CoP/g-C 3 N 4 nanosheet composite produced hydrogen gas at an optimum rate of 1172.5 µmol h -1 g -1 with an apparent quantum efficiency (AQE) of 3.49% at 420 nm. This was attributed to the excellent water dissociation properties and strong H* adsorption capability of Ru, [234] effectively facilitating the conversion of H 2 O to active intermediate H * that was first retained inside Ru cocatalyst.…”

Section: Transition Metal Phosphidementioning

confidence: 99%

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Tailor‐Engineered 2D Cocatalysts: Harnessing Electron–Hole Redox Center of 2D g‐C₃N₄ Photocatalysts toward Solar‐to‐Chemical Conversion and Environmental Purification

Ling

Ong

2022

Adv Funct Materials

112

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Sparked by natural photosynthesis, solar photocatalysis using metal‐free graphitic carbon nitride (g‐C3N4) with appealing electronic structure has turned up as the most captivating technique to the quest for sustainable energy generation and pollution‐free environment. Nonetheless, low‐dimensional g‐C3N4 is thwarted from sluggish kinetics and rapid recombination of photogenerated carriers upon light irradiation. Among multifarious modification strategies, engineering 2D cocatalysts is anticipated to accelerate redox kinetics, augment active sites and ameliorate electron–hole separation of 2D g‐C3N4 for boosted activity thanks to its face‐to‐face contact surface. It is of timely and technological significance to review the 2D/2D interfaces with state‐of‐the‐art 2D cocatalysts, spanning from carbon‐containing to phosphorus‐containing, metal dichalcogenide, and other cocatalysts. Fundamental principles for each photocatalytic application will be introduced. Thereafter, the recent advances of 2D/2D cocatalyst‐mediated g‐C3N4 systems will be critically evaluated based on their interfacial engineering, emerging roles, and impacts toward stability and catalytic efficiency. Importantly, mechanistic insights into the charge dynamics and structure–performance relationship will be deciphered. Last, noteworthy research directions are prospected to deliver insightful ideas for future development of g‐C3N4. Overall, this review is anticipated to serve as a scaffold and cornerstone in designing dimensionality‐dependent 2D cocatalyst‐assisted g‐C3N4 toward renewable energy and ecologically green environment.

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Section: Transition Metal Phosphidementioning

confidence: 99%

mentioning

confidence: 99%

Tailor‐Engineered 2D Cocatalysts: Harnessing Electron–Hole Redox Center of 2D g‐C₃N₄ Photocatalysts toward Solar‐to‐Chemical Conversion and Environmental Purification

Ling

Ong

2022

Adv Funct Materials

112

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“…Ni 2 P loaded over SnNb 2 O 6 /CdS for efficient photocatalytic H 2 evolution has been explored . Similarly, Ru-modified CoP as a binary cocatalyst for maximizing hydrogen production has been reported . According to the literature, there is no report available on the use of Ni 2 P/Ti 3 C 2 MXene as a binary cocatalyst for stimulating photocatalytic hydrogen evolution.…”

Section: Introductionmentioning

confidence: 99%

“…29 Similarly, Ru-modified CoP as a binary cocatalyst for maximizing hydrogen production has been reported. 30 According to the literature, there is no report available on the use of Ni 2 P/ Ti 3 C 2 MXene as a binary cocatalyst for stimulating photocatalytic hydrogen evolution. Therefore, constructing a ternary Ni 2 P/TiO 2 /Ti 3 C 2 MXene nanocomposite would be promising to maximize photocatalytic hydrogen production under UV− visible light irradiation.…”

Section: Introductionmentioning

confidence: 99%

Binary Ni₂P/Ti₃C₂ Multilayer Cocatalyst Anchored TiO₂ Nanocomposite with Etchant/Oxidation Grown TiO₂ NPs for Enhancing Photocatalytic H₂ Production

Tahir

2021

Energy Fuels

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Ternary nickel phosphide (Ni2P) and titanium carbide (Ti2C2) MXene supported titanium dioxide nanoparticles (TiO2 NPs) to construct a Ni2P/TiO2 NPs/Ti3C2 MXene hybrid composite for stimulating photocatalytic hydrogen production has been investigated. The performance comparison of two-dimensional (2D) Ti3C2 MXene multilayers with in situ grown TiO2 NPs synthesized through etching and atmospheric calcination methods was conducted and promising separation of charge carriers was observed. TiO2 NPs embedded over 2D Ti3C2, synthesized through both methods, were found to have promise in promoting photoactivity, whereas 2.89 times more H2 yield was attained with TiO2 NPs embedded through the oxidation (ox) approach. Using the Ni2P/TiO2/Ti3C2-ox heterostructure, a rate of 9425 ppm g–1 h–1 of H2 was reached, 2.77, 4.81, and 8.28 times more than those using Ni2P/TiO2, TiO2/Ti3C2 and TiO2 samples, respectively. This obviously augmented H2 production rate can be ascribed to a binary cocatalyst with efficient charge carrier separation, higher light absorption, and more attachment of water molecules. Among different alcohols, glycerol was a promising reagent to yield more hydrogen in addition to having higher photostability in consecutive cycles. This study provides a new approach to construct a ternary nanocomposite with proficient charge carrier separation and would be beneficial for other energy applications.

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“…Metallic rhodium or alloys, rhodium phosphide and selenide, as well as rhodium-doped hybrid nanomaterials, have been reported with excellent HER activity. − Nevertheless, the Gibbs free energy of H* on the Rh site is negative, which means too strong adsorption . Thus, optimizing the electronic structure of Rh-based materials is an important field in the research of noble-metal-based catalysts. , According to literature studies, anchoring or embedding noble metals on suitable supports, such as carbon materials, is an effective strategy to construct high-efficiency catalysts. − Furthermore, except integrating with a suitable support, the catalytic performance and utilization of noble metals can be further improved by the alloying strategy. − …”

Section: Introductionmentioning

confidence: 99%

Intermetallic Rhodium Alloy Nanoparticles for Electrocatalysis

Jiang

Chen

Liu

et al. 2021

ACS Appl. Nano Mater.

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The rational design and facile synthesis of highly activated and stable electrocatalysts toward the hydrogen evolution reaction (HER) and the oxygen reduction reaction (ORR) are extremely demanded but remain challenging. Herein, a highly efficient bifunctional electrocatalyst composed of rhodium (Rh), cobalt (Co), and iron (Fe) alloy nanoparticles embedded in nitrogen-doped graphene (RhFeCo@NG) is prepared through sequential annealing and the substitution reaction. The as-prepared Rh2.6Fe3Co2.6@NG electrocatalyst achieves an overpotential as low as 25 mV for reaching a current density of 10 mA cm–2 and an ultralow Tafel slope of 29.8 mV dec–1 in 1 M KOH solution for HER, which is even superior to the state-of-the-art platinum (Pt) catalyst. With regard to ORR, for the Rh2.6Fe3Co2.6@NG electrocatalyst, a half-wave potential (E 1/2) of 0.82 V versus reversible hydrogen electrode and excellent long-term stability are achieved. The experimental results illustrate that alloying the Rh atom with the FeCo nanoalloy is mainly responsible for the excellent HER and ORR performances. This study not only provides a robust and promising electrocatalyst for HER and ORR in alkaline media but also sheds light on the devising of efficient and multifunctional catalysts.

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Integrating Ru-modulated CoP nanosheets binary co-catalyst with 2D g-C3N4 nanosheets for enhanced photocatalytic hydrogen evolution activity

Cited by 68 publications

References 55 publications

Tailor‐Engineered 2D Cocatalysts: Harnessing Electron–Hole Redox Center of 2D g‐C₃N₄ Photocatalysts toward Solar‐to‐Chemical Conversion and Environmental Purification

Tailor‐Engineered 2D Cocatalysts: Harnessing Electron–Hole Redox Center of 2D g‐C₃N₄ Photocatalysts toward Solar‐to‐Chemical Conversion and Environmental Purification

Binary Ni₂P/Ti₃C₂ Multilayer Cocatalyst Anchored TiO₂ Nanocomposite with Etchant/Oxidation Grown TiO₂ NPs for Enhancing Photocatalytic H₂ Production

Intermetallic Rhodium Alloy Nanoparticles for Electrocatalysis

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Integrating Ru-modulated CoP nanosheets binary co-catalyst with 2D g-C3N4 nanosheets for enhanced photocatalytic hydrogen evolution activity

Cited by 68 publications

References 55 publications

Tailor‐Engineered 2D Cocatalysts: Harnessing Electron–Hole Redox Center of 2D g‐C3N4 Photocatalysts toward Solar‐to‐Chemical Conversion and Environmental Purification

Tailor‐Engineered 2D Cocatalysts: Harnessing Electron–Hole Redox Center of 2D g‐C3N4 Photocatalysts toward Solar‐to‐Chemical Conversion and Environmental Purification

Binary Ni2P/Ti3C2 Multilayer Cocatalyst Anchored TiO2 Nanocomposite with Etchant/Oxidation Grown TiO2 NPs for Enhancing Photocatalytic H2 Production

Intermetallic Rhodium Alloy Nanoparticles for Electrocatalysis

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Tailor‐Engineered 2D Cocatalysts: Harnessing Electron–Hole Redox Center of 2D g‐C₃N₄ Photocatalysts toward Solar‐to‐Chemical Conversion and Environmental Purification

Tailor‐Engineered 2D Cocatalysts: Harnessing Electron–Hole Redox Center of 2D g‐C₃N₄ Photocatalysts toward Solar‐to‐Chemical Conversion and Environmental Purification

Binary Ni₂P/Ti₃C₂ Multilayer Cocatalyst Anchored TiO₂ Nanocomposite with Etchant/Oxidation Grown TiO₂ NPs for Enhancing Photocatalytic H₂ Production