Recent Advances and Perspectives on Supported Catalysts for Heterogeneous Hydrogen Production from Ammonia Borane

Advanced Science, Journal Year: 2023, Volume and Issue: 10(21)

Published: April 28, 2023

Ammonia borane (AB), a liquid hydrogen storage material, has attracted increasing attention for utilization because of its high content. However, the slow kinetics AB hydrolysis and indefinite catalytic mechanism remain significant problems large-scale practical application. Thus, development efficient catalysts determination their mechanisms are urgent. A summary preparation process structural characteristics various supported is presented in this paper, including graphite, metal-organic frameworks (MOFs), metal oxides, carbon nitride (CN), molybdenum carbide (MoC), nanotubes (CNTs), boron (h-BN), zeolites, dots (CDs), (MXene). In addition, relationship between electronic structure performance discussed to ascertain actual active sites process. The catalysis systematically discussed, possible paths summarized provide theoretical considerations designing catalysts. Furthermore, three methods stimulating from dehydrogenation by-products design product-regeneration systems summarized. Finally, remaining challenges future research directions effective discussed.

Language: Английский

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Why do Single‐Atom Alloys Catalysts Outperform both Single‐Atom Catalysts and Nanocatalysts on MXene?

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 63(4)

Published: Dec. 1, 2023

Abstract Single‐atom alloys (SAAs), combining the advantages of single‐atom and nanoparticles (NPs), play an extremely significant role in field heterogeneous catalysis. Nevertheless, understanding catalytic mechanism SAAs catalysis reactions remains a challenge compared with single atoms NPs. Herein, ruthenium‐nickel (RuNi ) synthesized by embedding atomically dispersed Ru Ni NPs are anchored on two‐dimensional Ti 3 C 2 T x MXene. The RuNi SAA‐3 −Ti catalysts exhibit unprecedented activity for hydrogen evolution from ammonia borane (AB, NH BH hydrolysis mass‐specific (r mass value 333 L min −1 g . Theoretical calculations reveal that anchoring optimizes dissociation AB H O as well binding ability H* intermediates during due to d‐band structural modulation caused alloying effect metal‐supports interactions (MSI) This work provides useful design principles developing optimizing efficient hydrogen‐related demonstrates over energy

Language: Английский

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Recent challenges and development of technical and technoeconomic aspects for hydrogen storage, insights at different scales; A state of art review

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 70, P. 786 - 815

Published: May 22, 2024

The importance of the energy transition and role green hydrogen in facilitating this cannot be denied. Therefore, it is crucial to pay close attention thoroughly understand storage, which a critical aspect supply chain. In comprehensive review paper, we have undertaken task categorising evaluating various storage technologies across three different scales. These scales include small-scale laboratory-based methods such as metal-based hydrides, physical adsorbents, liquid organic carriers. Also, explore medium large-scale approaches like compressed gaseous hydrogen, cryogenic cryocompressed hydrogen. Lastly, delve into very options salt caverns, aquifers, depleted gas/oil reservoirs, abandoned mines, hard rock caverns. We examined each technology from technical maturity perspectives, well considering its techno-economic viability. It worth noting that development has been ongoing for mechanism; however, numerous economic challenges persist most areas. Particularly, cost per kilogramme current demands careful consideration. recommended metal hydrides (e.g., MgH2, LiBH4) need research enhance their performance. Physical adsorbents limited capacity except activated carbon. Some carriers (LCOHs) are suitable medium-scale near term. Ammonia-borane (AB), with high gravimetric volumetric properties, promising choice pending effective dehydrogenation. shows potential carrier due capacity, stability, solubility, surpassing DOE targets capabilities. Medium-scale utilising gas cylinders advancements liquefied requires reduction measures, strategic Large-scale caverns offering pure further analysis deployment projects mature, but costs reasonable, ranging mostly €0.25/kg €1.5/kg location specific options.

Language: Английский

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Silica Confinement for Stable and Magnetic Co−Cu Alloy Nanoparticles in Nitrogen‐Doped Carbon for Enhanced Hydrogen Evolution

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(24)

Published: April 10, 2024

Ammonia borane (AB) with 19.6 wt % H

Language: Английский

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Halloysite nanotubes supported Co2P bridged by carbon dots for enhanced hydrogen evolution from ammonia borane

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 483, P. 149332 - 149332

Published: Feb. 7, 2024

Language: Английский

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Subnanometric bimetallic Pt–Pd clusters in zeolites for efficient hydrogen production and selective tandem hydrogenation of nitroarenes

Science China Chemistry, Journal Year: 2024, Volume and Issue: 67(9), P. 2911 - 2917

Published: Aug. 13, 2024

Language: Английский

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Hydrogen production from chemical hydrogen storage materials over copper‐based catalysts

cMat., Journal Year: 2024, Volume and Issue: 1(1)

Published: June 1, 2024

Abstract Hydrogen, as a clean and efficient energy source, is one of the important carriers in future. However, safe storage delivery hydrogen still bottleneck its practical applications. Chemical hydrides (such NaBH 4 , NH 3 BH N 2 H ·H O, HCOOH) are considered potential chemical materials that can achieve rapid on‐site production. At present, most critical issue for them to develop economic catalysts production from hydrides. Copper (Cu) promising catalyst reactive metals among first‐row transition economically cheap. In this review, we outline recent advancements Cu‐based catalyzing Moreover, synthesis methods, characterization techniques, catalytic activity were also introduced. Finally, brief conclusion outlook given application dehydrogenation We hope review will stimulate interest research area

Language: Английский

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Two-dimensional molybdenum boride coordinating with ruthenium nanoparticles to boost hydrogen generation from hydrolytic dehydrogenation of ammonia borane

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 669, P. 794 - 803

Published: May 10, 2024

Language: Английский

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Narrow-Bandgap Halide Perovskite Cs₄CuSb₂Cl₁₂ with Full-Spectrum Photothermal Conversion

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(1), P. 336 - 345

Published: Jan. 4, 2024

Light-to-heat conversion represents one of the most promising pathways to utilize full-spectrum solar energy. The key for boosting photothermal in semiconductor-based light absorbers relies on narrowing bandgap harvesting wide-range sunlight and localizing thermal energy via decreasing heat loss. Here, we demonstrate first example using a halide perovskite, Cs4CuSb2Cl12, as material efficient solar-to-heat conversion, with an intrinsic narrow ultralow conductivity. Full-spectrum (200–2500 nm) absorption solar-thermal efficiency up 93.4% are achieved. property enables low-temperature rapid hydrogen production from ammonia borane, 2.0 equiv released, activation 12.2% is realized, without any extra input. This high performance not only provides potential energy-efficient on-board supply fuel cells but also opens new field perovskites utilized convertors.

Language: Английский

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A Solid-System Strategy for Controlled Hydrolytic Release of Hydrogen by Encapsulation of Ammonia Borane in Cobalt Decorated Halloysite Aerogel

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(14), P. 5716 - 5725

Published: March 27, 2024

Exploring the "on–off" control of hydrogen release remains a critical issue for efficiently on-demand utilization energy. In this work, new storage strategy loading ammonia borane (AB) solid and metal catalyst Co in halloysite nanotube aerogel (AB@Co/HNTA) is proposed controlled from AB hydrolysis by controlling added water. The results show that nanoparticles with size 3.07 nm are uniformly distributed on HNTA surface, can be packaged into to form bulk composite. Controlled generation achieved AB@Co/HNTA system, which turned off amount water aerogel. Further, decorated (Co/HNTA) reused encapsulate next run after complete hydrolysis. This work provides approach application field "on-board" device, solid-system hydrolytic extended any other porous material loaded catalysts.

Language: Английский

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