Three-dimensional nitrogen-doped MXene as support to form high-performance platinum catalysts for water-electrolysis to produce hydrogen

Kang, Zhaoming; Cai, Jian; Ye, Daixin; Zhao, Hongbin; Luo, Jia-Yang; Zhang, Jiujun

doi:10.1016/j.cej.2022.137443

Cited by 30 publications

(14 citation statements)

References 57 publications

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“…With the rapid progress of the modern society, the contradiction between energy consumption and environmental protection has become increasingly serious, which has urged researchers to explore sustainable and pollution-free energy. Hydrogen is one of the most promising renewable energy sources, which could take the place of fossil fuels. , Overall water splitting has spurred great interest as an effective and renewable route to obtain hydrogen . The precious metals and their derivatives have been considered as some of the most effective catalysts.…”

Section: Introductionmentioning

confidence: 99%

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Novel Strain Engineering Combined with a Microscopic Pore Synergistic Modulated Strategy for Designing Lattice Tensile-Strained Porous V₂C-MXene for High-Performance Overall Water Splitting

Zhou

Guo

et al. 2023

ACS Appl. Mater. Interfaces

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Transition metal carbon/nitride (MXene) holds immense potential as an innovative electrocatalyst for enhancing the overall water splitting properties. Nevertheless, the re-stacking nature induced by van der Waals force remains a significant challenge. In this work, the lattice tensile-strained porous V 2 C-MXene (named as TS (24) -P (50) -V 2 C) is successfully constructed via the rapid spray freezing method and the following hydrothermal treatment. Besides, the influence of lattice strain degree and microscopic pores on the catalytic ability is reviewed and explored systematically. The lattice tensile strain within V 2 C-MXene could widen the interlayer spacing and accelerate the ion transfer. The microscopic pores could change the ion transmission path and shorten the migration distance. As a consequence, the obtained TS (24) -P (50) -V 2 C shows extraordinary hydrogen evolution reaction and oxygen evolution reaction activity with the overpotential of 154 and 269 mV, respectively, at the current density of 10 mA/cm 2 , which is quite remarkable compared to the MXene-based electrocatalysts. Moreover, the overall water splitting device assembled using TS (24) -P (50) -V 2 C as both anode and cathode demonstrates a low cell voltage requirement of 1.57 V to obtain 10 mA/cm 2 . Overall, the implementation of this work could offer an exciting avenue to overcome the re-stacking issue of V 2 C-MXene, affording a highefficiency electrocatalyst with superior catalytic activity and desirable reaction kinetics.

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Section: Introductionmentioning

confidence: 99%

“…Hydrogen is one of the most promising renewable energy sources, which could take the place of fossil fuels. 1,2 Overall water splitting has spurred great interest as an effective and renewable route to obtain hydrogen. 3 The precious metals and their derivatives have been considered as some of the most effective catalysts.…”

Section: Introductionmentioning

confidence: 99%

Novel Strain Engineering Combined with a Microscopic Pore Synergistic Modulated Strategy for Designing Lattice Tensile-Strained Porous V₂C-MXene for High-Performance Overall Water Splitting

Zhou

Guo

et al. 2023

ACS Appl. Mater. Interfaces

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“…[ 43 ] Through the bonding of Pt with N and O, Kang et al fixed Pt in nitrogen‐doped Ti 3 C 2 , and the obtained catalyst showed high FE in a practical device. [ 72 ] By electrostatic adsorption and high‐temperature treatment, Peng et al synthesized Pt sites on porous N‐ and P‐co‐doped MXene (PNPM) to obtain 3D Pt SA–PNPM, where N/P‐coordinated Pt increased the intrinsic activity of the electrocatalyst. [ 55 ] In addition, the Pt SA–PNPM catalyst displayed low overpotential and small Tafel slope comparable to Pt/C over a wide PH range, but had higher mass activity than Pt/C ( Figure a–h).…”

Section: Applications Of Mxene‐based Sacsmentioning

confidence: 99%

Applications of MXene‐Based Single‐Atom Catalysts

Bai

Guan

2023

Small Structures

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Catalytic science, including heterogeneous catalysis, homogeneous catalysis, and enzyme catalysis, is involved in various fields of production and life, including energy, pharmaceuticals, environmental protection and so on. Thereinto, heterogeneous catalysis, which is usually driven by metal-based catalysts, effectively reduces production costs due to its easy recovery nature and thus plays a dominant role in industrial production. However, the distribution of active sites in heterogeneous catalysts is uncontrollable, and it is difficult to utilize the structure-activity relationship to adjust the catalyst performance. Through reducing the size of the nonmetallic catalyst and increasing the exposure of the active site, the catalytic performance can be significantly improved. Thus, design and synthesis of catalysts on atomic scale is an efficient strategy to improve catalytic activity.In 2011, Zhang et al. prepared atomically dispersed Pt species and proposed the concept of single-atom (SA) catalyst for the first time, defining single-atom catalysts (SACs) as a supported catalyst in which metal species are dispersed in the form of isolated atoms. [1] Compared with traditional catalysts, SACs have an atomic utilization efficiency of 100%, and can achieve high catalytic performance under low metal load, which greatly reduces the production cost. [2] Shi et al. loaded only 4.1 wt% Pt SAs on the surface of MoSe 2 , showing excellent alkaline electrocatalytic hydrogen evolution performance. [3] In addition, SACs have the properties of reusability and controllable structure, which combine the advantages of homogeneous and heterogeneous catalysis. [4,5] Usually, single-metal sites have uniform and adjustable coordination structures, showing the superiority of catalyzing specified reactions and improving product selectivity. By changing the activation temperature, Ren et al. synthesized Pt SAs with different electronic environment and oxidation state on Fe 2 O 3 in a controllable manner. [6] Moreover, Pd SAs with different coordination are synthesized by replacing different organic ligands, and the Pd@POL-1 coordinated with organic phosphine showed high catalytic selectivity for the hydrosilylation reaction of internal alkyne. [7] Due to the high cohesive energy, individual metal atoms tend to aggregate to form nanoclusters. [8] To obtain stable and highly dispersed metal atoms, it is usually necessary to anchor the isolated metal atoms onto a substrate, where strong charge transfer would occur through the bonding of the metal atoms to the reactive sites on the substrate. Metal oxide, metal-organic framework, molybdenum disulfide, graphene, and so on are common carriers that can be used to fix metal atoms. [9][10][11][12][13] Among them, 2D materials show good application prospects due to large specific surface area. [14,15] As a new type of 2D materials, metallic carbides, nitrides, or carbonic nitrides (MXenes), with the general structure of M n þ 1 X n T x , where M is transition metal (TM), X is carbon/nitrogen elemen...

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“…The increasing global demand for energy has led to the depletion of fossil energy reserves, and the consumption of fossil energy also brings about environmental contamination. , Therefore, it is urgent to develop renewable and clean energy sources. Among them, hydrogen, as a high energy density and an ideal green energy source, is one of the most likely candidates to replace fossil fuels in the future. , Currently, electrolysis of water is the most mature method for hydrogen production, but the process of electrolysis of water involves energy barriers, which leads to a significant reduction in the efficiency of hydrogen production, and precious metal-based electrocatalysts, such as Pt, can be a perfect solution to this problem, but the scarcity and high cost of precious metal electrocatalysts limit their large-scale application; therefore, the development of efficient, low-cost, and high-performance electrocatalysts is a challenge. In recent years, transition-metal-based electrocatalysts have been used to study hydrogen evolution reaction (HER), such as metal oxides, , metal sulfides, , metal phosphides, , and metal nitrides, , which have good electrocatalytic properties due to their low cost and large surface area, but their lack of a carbon matrix and poor electrical conductivity can also limit their performance; therefore, more researchers have shifted their focus to coordination polymers (CPs).…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Electrocatalytic Hydrogen Evolution Performance of Coordination Polymer-Derived Materials: Roles of Organic Ligands

Qin

Liu

Zhao

et al. 2023

ACS Appl. Energy Mater.

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By optimizing the ligands, the structure of a coordination polymer can be adjusted to realize the regulation and optimization of the properties of the coordination polymer materials. Coordination polymers not only exhibit a variety of molecular topologies but also have good application prospects in adsorption, separation, catalysis, photoelectric magnetism, and so on. Recently, coordination polymers are being well used in precursors for electrocatalysts because of their high surface area and porous structure. Therefore, we selected two ligands with a similar structure in which the two coordination groups were located at the paracene and intersite of the benzene ring, that is, 4-(1H-1,2,4-triazol-1-yl) benzoic acid (Hbza) and 3-(1H-1,2,4-triazol-1-yl) benzoic acid (3-Hbza). We found that there are obvious differences in the crystal structure between Zn-bza and Zn-3bza, which is due to the different relative position between the carboxyl group and the triazole group leading to the formation of different interactions, so we further studied the performance of their derived materials and found that the derivative materials of the coordination polymer formed by 3-Hbza have a better electrocatalytic performance. This paper provides a strong support for the idea that a slight change in the structure of the ligand will affect the final structure and thus the final performance.

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Three-dimensional nitrogen-doped MXene as support to form high-performance platinum catalysts for water-electrolysis to produce hydrogen

Cited by 30 publications

References 57 publications

Novel Strain Engineering Combined with a Microscopic Pore Synergistic Modulated Strategy for Designing Lattice Tensile-Strained Porous V₂C-MXene for High-Performance Overall Water Splitting

Novel Strain Engineering Combined with a Microscopic Pore Synergistic Modulated Strategy for Designing Lattice Tensile-Strained Porous V₂C-MXene for High-Performance Overall Water Splitting

Applications of MXene‐Based Single‐Atom Catalysts

Investigation on the Electrocatalytic Hydrogen Evolution Performance of Coordination Polymer-Derived Materials: Roles of Organic Ligands

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Three-dimensional nitrogen-doped MXene as support to form high-performance platinum catalysts for water-electrolysis to produce hydrogen

Cited by 30 publications

References 57 publications

Novel Strain Engineering Combined with a Microscopic Pore Synergistic Modulated Strategy for Designing Lattice Tensile-Strained Porous V2C-MXene for High-Performance Overall Water Splitting

Novel Strain Engineering Combined with a Microscopic Pore Synergistic Modulated Strategy for Designing Lattice Tensile-Strained Porous V2C-MXene for High-Performance Overall Water Splitting

Applications of MXene‐Based Single‐Atom Catalysts

Investigation on the Electrocatalytic Hydrogen Evolution Performance of Coordination Polymer-Derived Materials: Roles of Organic Ligands

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Product

Resources

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Novel Strain Engineering Combined with a Microscopic Pore Synergistic Modulated Strategy for Designing Lattice Tensile-Strained Porous V₂C-MXene for High-Performance Overall Water Splitting

Novel Strain Engineering Combined with a Microscopic Pore Synergistic Modulated Strategy for Designing Lattice Tensile-Strained Porous V₂C-MXene for High-Performance Overall Water Splitting