2D Graphitic Carbon Nitride for Energy Conversion and Storage

Wang, Yinghui; Liu, Lizhen; Ma, Tianyi; Zhang, Yihe

doi:10.1002/adfm.202102540

Cited by 210 publications

(113 citation statements)

References 261 publications

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“…61,62 , elemental 2D materials (e.g., black phosphorus (BP), tellurium, silicene, germanene, borophene, etc.) [63][64][65] , layered metal oxides 66,67 , layered double hydroxides (LDHs) 68,69 , graphitic carbon nitride (g-C3N4) 70,71 , MXenes 72 , metals 73 , organics/polymers 74,75 , metal-organic frameworks (MOFs) 76,77 , covalent-organic frameworks (COFs) 78,79 , organic-inorganic hybrid perovskites [80][81][82] , and transition metal halides 83,84 , have been synthesized by various synthetic methods in the last decade. It is worth pointing out that the number of materials in the family of 2D materials is still continuously growing every year.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress on Two-Dimensional Materials

Chang¹,

Chen²,

Chen³

et al. 2021

Acta Physico Chimica Sinica

291

108

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Research on two-dimensional (2D) materials has been explosively increasing in last seventeen years in varying subjects including condensed matter physics, electronic engineering, materials science, and chemistry since the mechanical exfoliation of graphene in 2004. Starting from graphene, 2D materials now have become a big family with numerous members and diverse categories. The unique structural features and physicochemical properties of 2D materials make them one class of the most appealing candidates for a wide range of potential applications.In particular, we have seen some major breakthroughs made in the field of 2D materials in last five years not only in developing novel synthetic methods and exploring new structures/properties but also in identifying innovative applications and pushing forward commercialisation. In this review, we provide a critical summary on the recent progress made in the field of 2D materials with a particular focus on last five years. After a brief background 物理化学学报 Acta Phys. -Chim. Sin. 2021, 37 (12), 2108017 (3 of 151) introduction, we first discuss the major synthetic methods for 2D materials, including the mechanical exfoliation, liquid exfoliation, vapor phase deposition, and wet-chemical synthesis as well as phase engineering of 2D materials belonging to the field of phase engineering of nanomaterials (PEN). We then introduce the superconducting/optical/magnetic properties and chirality of 2D materials along with newly emerging magic angle 2D superlattices. Following that, the promising applications of 2D materials in electronics, optoelectronics, catalysis, energy storage, solar cells, biomedicine, sensors, environments, etc. are described sequentially. Thereafter, we present the theoretic calculations and simulations of 2D materials. Finally, after concluding the current progress, we provide some personal discussions on the existing challenges and future outlooks in this rapidly developing field.

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Section: Introductionmentioning

confidence: 99%

Recent Progress on Two-Dimensional Materials

Chang¹,

Chen²,

Chen³

et al. 2021

Acta Physico Chimica Sinica

291

108

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“…[3] Different from graphene, 2DCN materials have various electronic, mechanical, and thermal characteristics, depending on the ratios and positions of C/N atoms in the lattice. [4] Because of their structure diversity and electronic properties, 2DCN materials have shown great potential for applications into energy and environment, [5] such as photocatalysis, [6] electrocatalysis, [7] and Li-ion batteries. [8] Up to now, a variety of 2DCN materials have already been realized experimentally.…”

Section: Introductionmentioning

confidence: 99%

Two‐Dimensional Dirac Nodal Line Carbon Nitride to Anchor Single‐Atom Catalyst for Oxygen Reduction Reaction

Shen

et al. 2022

ChemSusChem

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Two-dimensional carbon nitride (2DCN) materials have emerged as an important class of 2D materials beyond graphene. However, 2DCN materials with nodal-line semimetal characteristic are rarely reported. In this work, a new nodal-line semimetal 2DCN with the stoichiometry C 4 N 4 is designed by using density functional theory (DFT) calculations and its application to anchor single-atom catalysts (SACs) for the oxygen reduction reaction (ORR) is investigated. C 4 N 4 is a planar covalent network (sp 2 hybridization) with regular holes formed by the four N atoms, which is dynamically, thermodynamically, and mechanically stable. The nodal line is contributed by the p z orbitals of C and p x/y orbitals of N atoms. C 4 N 4 shows an anisotropic Fermi velocity and high electron mobility. Because of its porous structure, C 4 N 4 can anchor heteroatoms as SACs for electrocatalysis. C 4 N 4 anchored with Fe or Co is shown to be highly active for the ORR with a rather high half-wave potential of around 0.90 V, which is higher than those of SACs on other carbon nitrides. These findings may provide a new strategy to design novel substrates for SACs.

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“…Deionized (DI) water was used as a solvent in hydrothermal treatments, sample washing, and photocatalytic reactions. Bulk g-C 3 N 4 was synthesized by a thermal polymerization method [ 35 ]. Typically, 6 g of thiourea precursor was placed in a B-form crucible covered with aluminum foil and heated to 550 °C for 4 h (ramping rate = 5 °C/min) in a muffle furnace.…”

Section: Methodsmentioning

confidence: 99%

Solvent Etching Process for Graphitic Carbon Nitride Photocatalysts Containing Platinum Cocatalyst: Effects of Water Hydrolysis on Photocatalytic Properties and Hydrogen Evolution Behaviors

et al. 2022

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In this study, we synthesized Pt/g-C3N4 photocatalysts modified by a solvent etching process where ethanol (Pt/CN0), water (Pt/CN100), and a 50:50 mixture (Pt/CN50) were used as a solvent, and investigated the optimal properties of g-C3N4 to prepare the best Pt/g-C3N4 for photocatalytic hydrogen evolution. From diverse characterizations, water was proven to be a stronger solvent agent, resulting in not only the introduction of more O-functional groups onto the g-C3N4 surface, but also the degradation of a regular array of tri-s-triazine units in the g-C3N4 structure. While the addition of O-functional groups positively influenced the oxidation state of the Pt cocatalyst and the hydrogen production rate, the changes to g-C3N4 structure retarded charge transfer on its surface, inducing negative effects such as fast recombination and less oxidized Pt species. Pt/CN50 that was synthesized with the 50:50 solvent mixture exhibited the highest hydrogen production rate of 590.9 µmol g−1h−1, while the hydrogen production rates of Pt/CN0 (with pure ethanol solvent) and Pt/CN100 (with pure water solvent) were 462.7, and 367.3 µmol g−1h−1, respectively.

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2D Graphitic Carbon Nitride for Energy Conversion and Storage

Cited by 210 publications

References 261 publications

Recent Progress on Two-Dimensional Materials

Recent Progress on Two-Dimensional Materials

Two‐Dimensional Dirac Nodal Line Carbon Nitride to Anchor Single‐Atom Catalyst for Oxygen Reduction Reaction

Solvent Etching Process for Graphitic Carbon Nitride Photocatalysts Containing Platinum Cocatalyst: Effects of Water Hydrolysis on Photocatalytic Properties and Hydrogen Evolution Behaviors

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