Interface engineering in the BNNS@Ti<sub>3</sub>C<sub>2</sub> intercalation structure for enhanced electrocatalytic hydrogen evolution

Ai, Zizheng; Chang, Bin; Xu, Chengwei; Zhu, Xianglin; Wu, Yongzhong; Sun, Changlong; Shao, Yongliang

doi:10.1039/c9nj01504c

Cited by 21 publications

(8 citation statements)

References 40 publications

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“…In another example, MXene can serve as a bridge to connect the different layers of hexagonal boron nitride nanosheets via interface engineering, resulting in an interfacial transformation from semiconducting to metallic, which is beneficial for HER activity. [87] ). Reproduced with permission.…”

Section: Hydrogen Evolution Reactionmentioning

confidence: 99%

Challenges and Opportunities in Utilizing MXenes of Carbides and Nitrides as Electrocatalysts

Wang

Nian

Biswas

et al. 2020

Advanced Energy Materials

120

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Sustainable energy conversion processes often require electrochemical reactions powered by renewable energy sources. 2D transition metal carbides and nitrides (MXenes), an important and growing class of 2D materials, have been demonstrated to be promising candidates for heterogeneous electrocatalysis due to their unique electronic, physical, chemical, and mechanical properties. Significant efforts have been made in the development of MXenes and MXene‐derived electrocatalysts for various electrochemical reactions, including the hydrogen evolution reaction, oxygen evolution reaction, oxygen reduction reaction, carbon dioxide reduction reaction, nitrogen reduction reaction, and methanol oxidation reaction. MXenes from earth‐abundant metals provide the potential for large‐scale applications, and their well‐defined structures allow for the identification of active sites and catalytic mechanisms. Herein, recent studies of MXenes in electrocatalysis are reviewed, and the challenges and opportunities for the design and fabrication of MXenes and MXene‐based materials with desired electrocatalytic properties are discussed.

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Section: Hydrogen Evolution Reactionmentioning

confidence: 99%

Challenges and Opportunities in Utilizing MXenes of Carbides and Nitrides as Electrocatalysts

Wang

Nian

Biswas

et al. 2020

Advanced Energy Materials

120

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“…[1] With the high gravimetric energy density and zero-carbon the water electrocatalysts with the efficient electron transfer capability and orbital alternating nature in the transition metal matrix with the multicentered bonding characteristics. [13][14][15][16] The transferred electrons from the B atoms can be ionically combined into the d-orbitals of transition metal atoms to form an electron-enriched catalytic surface, resulting in the improved adsorption of hydroxyl functional groups and hydrogen protons and thus can significantly enhance the H 2 and O 2 generation process. At the same time, the boron in the transition metals can stabilize the atomic hybridization and can offer the improved stability of electrocatalysts.…”

Section: Introductionmentioning

confidence: 99%

Higher Water‐Splitting Performance of Boron‐Based Porous CoMnB Electrocatalyst over the Benchmarks at High Current in 1 m KOH and Real Sea Water

Lin

Habib

Mandavkar

et al. 2022

Advanced Sustainable Systems

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emission nature, the hydrogen is receiving significant attentions as a renewable energy alternative. [2,3] The electrocatalytic water splitting, consisted of the half-reaction of hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), is an appealing approach for the generation of ultra-fine hydrogen with the zero-carbon emission nature and recyclability as compared with the other hydrogen generation approaches of gasification, gas reforming, renewable liquid reforming, etc. [4] To date, the Pt/Pd and IrO 2 /RuO 2 set the benchmark electrocatalysts for the HER and OER with the low overpotentials due to their excellent water-splitting capabilities. Nevertheless, their high costs make the large-scale implementation of hydrogen generation pricier and thus the development of highly efficient and stable electrocatalysts at affordable costs still remains to be one of the major challenges for the comprehensive application of green hydrogen production by the electrochemical water splitting (WS). The transition metal-based electrocatalysts with the d-orbital characteristics, i.e., Co, Ni, Cu, Fe, Mo, W, Mn, Cr, etc., have been widely explored as the electrolytic electrode alternatives with the superb HER and OER reaction capabilities and abundance on the earth crust. [5][6][7][8] The transition metals have been frequently compounded with the nonmetallic phosphide, sulfide, nitride, etc., and significant advances have been made along with the outstanding WS performances due to their superb intrinsic HER/OER reaction capabilities. [9][10][11][12] Meantime, the Co and Mn have demonstrated outstanding electron transportability and absorption of hydrogen protons and hydroxyl species. [9][10][11][12] For instance, the CoNi-MOF exhibited a low overpotential due the rapid electron transfer rate facilitated by the adequate Co incorporation. [9] The Mn-doped Ni 2 P microflowers demonstrated a low cell voltage due to the improved conductivity and increased electrochemical active sites by the incorporation of Mn. [10] The combination of Co and Mn with the nonmetallic elements of methylidyne and selenide groups such as CoMnCH and CoMnSe has demonstrated improved intrinsic characteristics for the WS. [11,12] More recently, the boron (B) is being considered as another useful nonmetallic element for The development of highly efficient and stable electrocatalysts at an affordable cost is an essential component for the large-scale implementation of green hydrogen production. In this work, the fabrication of porous CoMnB electrocatalyst is demonstrated with the incorporation of boron into the Co-Mn matrix by an electrochemical approach for bifunctional water electrocatalysis for the first time. The optimized CoMnB electrocatalyst demonstrates an excellent bifunctionality with a low 2-E turnover voltage of 1.59 V at 20 mA cm −2 in 1 m KOH. The CoMnB shows a comparable water-splitting current at low current range as compared with the standard benchmark electrodes of Pt/C||RuO 2 in 1 m KOH. Then, the CoMnB outperforms the benchm...

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“…Electrochemical water-splitting for H 2 /O 2 evolution, due to its potential to be coupled with renewable energy harvesting, is regarded as a promising approach for renewable green fuel (i.e., hydrogen) production to solve issues caused by the limited reserve of fossil fuels. − However, the mass production of hydrogen through electrochemical water-splitting is hampered by the scarcity and high cost of precious metals, which are conventionally used for electrocatalysts. Therefore, tremendous efforts have been devoted to the exploration of nonprecious earth-abundant alternatives for water-splitting, including transition-metal oxides, − (oxy)hydroxides, , phosphides, − chalcogenides, , carbides, , and metal-free hybrids. , Among these candidates, transition-metal phosphides, especially Co–P, Ni–P, or their bimetallic phosphides, have been considered as the most promising bifunctional catalysts for electrochemical water-splitting since P species with suitable electronegativity can facilitate the proton-coupled electron transfer process for HER and boost the generation of peroxide intermediate for OER . To achieve the desirable electrocatalytic performance, a rational design should be made to bring in (1) porous or open nanostructures with high surface area to provide sufficient active sites and facilitate the mass transfer, (2) excellent conductivity to facilitate the electron transfer, (3) suitable hydrophilicity to allow effective contact with an electrolyte, and (4) good chemical and structural stability.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical Mesoporous MXene–NiCoP Electrocatalyst for Water-Splitting

Qin

Sun

Chen

et al. 2020

ACS Appl. Mater. Interfaces

172

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The utilization of nonprecious metal electrocatalysts for water-splitting may be the ultimate solution for sustainable and clean hydrogen energy. MXene, an emerging two-dimensional material, exhibits many unique properties such as possible metal-like conductivity, hydrophilic surface, and rich chemistry, rendering a group of promising catalysts and catalyst support materials. In this study, exfoliated Ti3C2 MXenes serve as a substrate to perpendicularly grow uniform mesoporous NiCoP nanosheets through an in situ interface-growth strategy and subsequent phosphorization. The obtained Ti3C2@mNiCoP materials with a stable hierarchical sandwich structure possess excellent conductivity, large surface area, and uniform mesopores with high pore volume. With these beneficial properties, the Ti3C2@mNiCoP material exhibits superior overall water-splitting performance compared with that of its building-block counterparts, matching the state-of-the-art water-splitting electrocatalysts.

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Interface engineering in the BNNS@Ti₃C₂ intercalation structure for enhanced electrocatalytic hydrogen evolution

Abstract: Based on the interface engineering, a novel BNNS@Ti3C2 intercalation electrocatalyst was designed, and it exhibited an outstanding HER performance.

Cited by 21 publications

References 40 publications

Challenges and Opportunities in Utilizing MXenes of Carbides and Nitrides as Electrocatalysts

Challenges and Opportunities in Utilizing MXenes of Carbides and Nitrides as Electrocatalysts

Higher Water‐Splitting Performance of Boron‐Based Porous CoMnB Electrocatalyst over the Benchmarks at High Current in 1 m KOH and Real Sea Water

Hierarchical Mesoporous MXene–NiCoP Electrocatalyst for Water-Splitting

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Interface engineering in the BNNS@Ti3C2 intercalation structure for enhanced electrocatalytic hydrogen evolution

Abstract: Based on the interface engineering, a novel BNNS@Ti3C2 intercalation electrocatalyst was designed, and it exhibited an outstanding HER performance.

Cited by 21 publications

References 40 publications

Challenges and Opportunities in Utilizing MXenes of Carbides and Nitrides as Electrocatalysts

Challenges and Opportunities in Utilizing MXenes of Carbides and Nitrides as Electrocatalysts

Higher Water‐Splitting Performance of Boron‐Based Porous CoMnB Electrocatalyst over the Benchmarks at High Current in 1 m KOH and Real Sea Water

Hierarchical Mesoporous MXene–NiCoP Electrocatalyst for Water-Splitting

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Interface engineering in the BNNS@Ti₃C₂ intercalation structure for enhanced electrocatalytic hydrogen evolution