Rational construction of Pt/PtTex interface with optimal intermediate adsorption energy for efficient hydrogen evolution reaction

Chen, Jiadong; Qin, Minkai; Ma, Shuangxiu; Fan, Ruxue; Zheng, Xiaozhong; Mao, Shanjun; Chen, Chunhong; Wang, Yong

doi:10.1016/j.apcatb.2021.120640

Cited by 71 publications

(48 citation statements)

References 29 publications

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“…The HR‐TEM image of Pt‐G/CNFs (Figure 1g) displayed well‐resolved lattice fringes, including the graphene lattice and the lattice spacing of 0.224 nm assigned to the (111) plane of Pt. [ 36,37 ] The corresponding high‐angle annular darkfield (HAADF)‐STEM images (Figure 2) clearly demonstrate that elemental Pt was homogeneously distributed throughout the structure of G‐CNFs with an average size of 1.85 ± 0.88 nm. Based on the above results, we confirmed that the presence of graphene could confine the growth of Pt by providing active sites compared to the CNFs without adding graphene.…”

Section: Resultsmentioning

confidence: 99%

Platinum Cluster/Carbon Quantum Dots Derived Graphene Heterostructured Carbon Nanofibers for Efficient and Durable Solar‐Driven Electrochemical Hydrogen Evolution

Wang

Zhang

et al. 2022

Small Methods

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Among various types of clean energy sources, hydrogen is considered promising due to its high energy density, zero carbon emission during combustion. [4][5][6] To fully deploy technologies for hydrogen production, there is a critical need for the selection of efficient hydrogen evolution reaction (HER) catalysts. [7][8][9] Many researchers focus on producing cost-effective Pt-based catalysts by enhancing the active sites of the Pt (e.g., single atom-based catalysts) and distribution of the Pt in the supports, which can largely decrease the amount of Pt. [10][11][12][13] However, up to date, it is still a major challenge to stabilize Pt nanoclusters during the HER. [14,15] 1D or 2D nanostructures can have large surface energy, spatial confinement, and tunable imperfections, which endow them with unique properties, such as increased catalytic activity, enhanced mechanical strength, and chemical stability. [16][17][18][19] Combining 0D Pt nanocluster with 1D/2D nanostructures can prevent their aggregation and mass loss in catalytic recycling. [20] Until now, considerable efforts have focused on developing low-dimensional heterostructures. [21,22] Carbon nanofibers (CNFs) possess unique mechanical, thermal, and Large scale solar-driven hydrogen production is a crucial step toward decarbonizing society. However, the solar-to-hydrogen (STH) conversion efficiency, long-term stability, and cost-effectiveness in hydrogen evolution reaction (HER) still need to be improved. Herein, an efficient approach is demonstrated to produce low-dimensional Pt/graphene-carbon nanofibers (CNFs)-based heterostructures for bias-free, highly efficient, and durable HER. Carbon dots are used as efficient building blocks for the in situ formation of graphene along the CNFs surface. The presence of graphene enhances the electronic conductivity of CNFs to ≈3013.5 S m −1 and simultaneously supports the uniform Pt clusters growth and efficient electron transport during HER. The electrode with a low Pt loading amount (3.4 µg cm −2 ) exhibits a remarkable mass activity of HER in both acidic and alkaline media, which is significantly better than that of commercial Pt/C (31 µg cm −2 of Pt loading). In addition, using a luminescent solar concentrator-coupled solar cell to provide voltage, the bias-free water splitting system exhibits an STH efficiency of 0.22% upon one-sun illumination. These results are promising toward using low-dimensional heterostructured catalysts for future energy storage and conversion applications.The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/smtd.202101470.

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Section: Resultsmentioning

confidence: 99%

Platinum Cluster/Carbon Quantum Dots Derived Graphene Heterostructured Carbon Nanofibers for Efficient and Durable Solar‐Driven Electrochemical Hydrogen Evolution

Wang

Zhang

et al. 2022

Small Methods

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“…Interface effect refers to the interface between two types of active materials due to strong bonding, electronic interaction or synergistic effect, which can form more active centers than individual components. [ 250 , 251 , 252 , 253 , 254 , 255 , 256 , 257 , 258 , 259 , 260 , 261 , 262 , 263 , 264 , 265 , 266 , 267 , 268 , 269 ] The complex electronic structures of interfacial electrocatalysts make the fundamental investigations of structure‐activity relationships still remain as a great challenge. Nevertheless, this complexity also introduces various structural features that can be adjusted advantageously.…”

Section: Strategies To Improve Her Electrocatalystsmentioning

confidence: 99%

Rational Design of Better Hydrogen Evolution Electrocatalysts for Water Splitting: A Review

et al. 2022

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The excessive dependence on fossil fuels contributes to the majority of CO2 emissions, influencing on the climate change. One promising alternative to fossil fuels is green hydrogen, which can be produced through water electrolysis from renewable electricity. However, the variety and complexity of hydrogen evolution electrocatalysts currently studied increases the difficulty in the integration of catalytic theory, catalyst design and preparation, and characterization methods. Herein, this review first highlights design principles for hydrogen evolution reaction (HER) electrocatalysts, presenting the thermodynamics, kinetics, and related electronic and structural descriptors for HER. Second, the reasonable design, preparation, mechanistic understanding, and performance enhancement of electrocatalysts are deeply discussed based on intrinsic and extrinsic effects. Third, recent advancements in the electrocatalytic water splitting technology are further discussed briefly. Finally, the challenges and perspectives of the development of highly efficient hydrogen evolution electrocatalysts for water splitting are proposed.

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“…Electrochemically activating Te-based nanomaterials may also produce heterostructured nanocatalysts to greatly boost the electrocatalytic reactions. As a representative example, Wang et al 89 synthesized Pt/PtTe x heterogeneous catalysis interface by electrochemical activation of PtTe 2 nanorods (Fig. 7e).…”

Section: Perspective Dalton Transactionsmentioning

confidence: 99%

Introducing Te for boosting electrocatalytic reactions

Chu

et al. 2023

Dalton Trans.

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Rational construction of Pt/PtTex interface with optimal intermediate adsorption energy for efficient hydrogen evolution reaction

Cited by 71 publications

References 29 publications

Platinum Cluster/Carbon Quantum Dots Derived Graphene Heterostructured Carbon Nanofibers for Efficient and Durable Solar‐Driven Electrochemical Hydrogen Evolution

Platinum Cluster/Carbon Quantum Dots Derived Graphene Heterostructured Carbon Nanofibers for Efficient and Durable Solar‐Driven Electrochemical Hydrogen Evolution

Rational Design of Better Hydrogen Evolution Electrocatalysts for Water Splitting: A Review

Introducing Te for boosting electrocatalytic reactions

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