Boron doped carbon nanotubes: Synthesis, characterization and emerging applications – A review

Sawant, Shrilekha V.; Patwardhan, Ashwin W.; Joshi, Jyeshtharaj B.; Dasgupta, Kinshuk

doi:10.1016/j.cej.2021.131616

Cited by 104 publications

(40 citation statements)

References 165 publications

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“…Improve metal dispersion and stability [57,62–68,73] Regulate electronic structure of metal [63,65,67,71] Regulate acid site [64,65] Regulate the adsorption/desorption strength of substrate/intermediate [57,62,65] Change reduction state [64,65,67] …”

Section: Metal Catalyst Anchored By Heteroatomsmentioning

confidence: 99%

“…Adjust the S-containing precursor Change calcination temperature B Improve metal dispersion and stability [57,[62][63][64][65][66][67][68]73] Regulate electronic structure of metal [63,65,67,71] Regulate acid site [64,65] Regulate the adsorption/desorption strength of substrate/ intermediate [57,62,65] Change reduction state [64,65,67] Pyrolysis of B-containing precursor Chemical vapor deposition Adjust the P-containing precursor Change processing time Change calcination temperature P Metal-P species [70,72] Regulate acid site [50] Improve metal dispersion and stability [57,61,72,75] Regulate the affinity between carbon matrix and metal precursors [61] Regulate electronic structure of metal [71] Regulate the adsorption/desorption strength of substrate/ intermediate [60,76] Pyrolysis of P-containing precursor Phosphoric acid pretreatment Adjust the P-containing precursor Change calcination temperature (Table 3) are of significance in a diverse range of applications, which is worthy of more efforts and breakthroughs.…”

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confidence: 99%

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Advanced Carbon‐Based Nanocatalysts and their Application in Catalytic Conversion of Renewable Platform Molecules

et al. 2022

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The transformation of renewable platform molecules to produce value‐added fuels and fine‐chemicals is a promising strategy to sustainably meet future demands. Owing to their finely modified electronic and geometric properties, carbon‐based nanocatalysts have shown great capability to regulate their catalytic activity and stability. Their well‐defined and uniform structures also provide both the opportunity to explore intrinsic reaction mechanisms and the site‐requirement for valorization of renewable platform molecules to advanced fuels and chemicals. This Review highlights the progress achieved in carbon‐based nanocatalysts, mainly by using effective regulation approaches such as heteroatom anchoring, bimetallic synergistic effects, and carbon encapsulation to enhance catalyst performance and stability, and their applications in renewable platform molecule transformations. The foundation for understanding the structure‐performance relationship of carbon‐based catalysts has been established by investigating the effect of these regulation methods on catalyst performance. Finally, the opportunities, challenges and potential applications of carbon‐based nanocatalysts are discussed.

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Section: Metal Catalyst Anchored By Heteroatomsmentioning

confidence: 99%

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confidence: 99%

Advanced Carbon‐Based Nanocatalysts and their Application in Catalytic Conversion of Renewable Platform Molecules

et al. 2022

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“…From the viewpoint of electronic structure the boron and nitrogen atoms have a number of similarities. The reaction of pure CNT saturation with boron atoms allows one to modify the properties of semiconductor nanotubes towards metallic properties by lowering the Fermi level to the valence band [10]. The introduction of boron atoms in the structure of CNT walls reduces the charge inhomogeneity of the surface and hence improves the sorption properties of CNTs [12].…”

Section: Scientific Prerequisites For Boron Modification Of Pure Carb...mentioning

confidence: 99%

“…Thus the impurities introduced determine the range of the key new properties achieved in the test nanomaterials. One should therefore select substitution atoms so to provide for their required effect due to their oxidation/ reduction properties without distorting the system geometry because of their sizes [10]. Comparison between the main parameters of boron and carbon atoms is shown in Table 2.…”

Section: Properties Of Carbon Nanotubes Containing Boron Impurity Atomsmentioning

confidence: 99%

“…Their use has a number of prerequisites, e.g. the oxidation/reduction properties of heteroatoms providing for their straightforward incorporation into the nanotube lattice [10]. In the choice of a doping material one should also pay attention to the safety and stability of the final material, while maintaining the main spatial parameters of the nanoobjects.…”

Section: Introductionmentioning

confidence: 99%

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Carbon nanostructures containing boron impurity atoms: synthesis, physicochemical properties and potential applications

Boroznin¹

2022

MoEM

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Introduction of substitution atoms into carbon nanotubes is an efficient tool of controlling their physicochemical properties which allows one to expand their practical applications. Boron is one of the most promising materials used for the modification of carbon nanotubes. However until now there has been no systematization of research data on the effect of boron impurity atoms on the properties of carbon nanotubes, and this limits potential industrial applications of this nanomaterial. In this work the most efficient currently existing methods of synthesizing carbon nanotubes containing boron impurity atoms have been discussed and the physicochemical properties of the obtained nanomaterials have been analyzed. Furthermore predictions as to their potential application domains have been made on the basis of available theoretical and experimental results. Comparison of the developed technologies has shown that the most efficient synthesis method is the catalytic vapor phase deposition. The mechanical, electronic and chemical properties of boron-carbon nanotubes have also been reviewed. For a more comprehensive analysis of the dependence of the physicochemical properties of carbon nanotubes on the concentration of boron impurity a model experiment has been carried out involving quantum mechanics instruments which has shown a direct correlation between the band gap of the material and the number of boron impurity atoms. The main practical application trends of boron-containing carbon nanotubes have been outlined.

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A Coherent Pd–Pd₁₆B₃ Core–Shell Electrocatalyst for Controlled Hydrogenation in Nitrogen Reduction Reaction

Wen,

Wang,

Hao

et al. 2024

Adv Funct Materials

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The manipulation of surface catalytic sites has rarely been explored for metal borides, and the subsurface effects on the electrocatalytic activity of the nitrogen reduction reaction (NRR) remain unknown. Herein, this work develops a core–shell nanoparticle catalyst with a Pd core that ensures high electron transfer rates and an Pd16B3 atomical shell that possess tunable active sites for regulating the NRR. The atomic structural evolution from Pd to Pd16B3 is investigated by precisely controlling the B atom diffusion, molecular rearrangement, and d–sp orbital hybridization. Pd/Pd16B3 core–shell nanocrystals exhibit an exceptional NRR performance with a high NH3 Faradaic efficiency of 30.8%, which is superior to those of pristine Pd (1.2%) and B‐doped Pd (4.8%) under identical conditions, and a yield rate of 0.81 µmol h−1 cm−2. This work discovers that the Pd16B3 shell could promote the NRR selectivity by separating the separating the hydrogen evolution reaction proceeded on hole sites and NRR proceeded on bridge sites, and the Pd core could provide the excellent conductivity to Pd16B3 shell through regulated electron interactions. Consequently, the controlled chemical ordering of palladium boride on palladium surfaces provides insight into the synthesis of advanced NRR electrocatalysts.

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Boron doped carbon nanotubes: Synthesis, characterization and emerging applications – A review

Cited by 104 publications

References 165 publications

Advanced Carbon‐Based Nanocatalysts and their Application in Catalytic Conversion of Renewable Platform Molecules

Advanced Carbon‐Based Nanocatalysts and their Application in Catalytic Conversion of Renewable Platform Molecules

Carbon nanostructures containing boron impurity atoms: synthesis, physicochemical properties and potential applications

A Coherent Pd–Pd₁₆B₃ Core–Shell Electrocatalyst for Controlled Hydrogenation in Nitrogen Reduction Reaction

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Boron doped carbon nanotubes: Synthesis, characterization and emerging applications – A review

Cited by 104 publications

References 165 publications

Advanced Carbon‐Based Nanocatalysts and their Application in Catalytic Conversion of Renewable Platform Molecules

Advanced Carbon‐Based Nanocatalysts and their Application in Catalytic Conversion of Renewable Platform Molecules

﻿Carbon nanostructures containing boron impurity atoms: synthesis, physicochemical properties and potential applications

A Coherent Pd–Pd16B3 Core–Shell Electrocatalyst for Controlled Hydrogenation in Nitrogen Reduction Reaction

Contact Info

Product

Resources

About

Carbon nanostructures containing boron impurity atoms: synthesis, physicochemical properties and potential applications

A Coherent Pd–Pd₁₆B₃ Core–Shell Electrocatalyst for Controlled Hydrogenation in Nitrogen Reduction Reaction