2022 roadmap on hydrogen energy from production to utilizations

Yang, Zhengxuan; Li, Xiu-Gang; Yao, Qilu; Lu, Zhang‐Hui; Zhang, Ning; Xia, Jun; Yang, Kai; Wang, Yuqing; Zhang, Kan; Liu, Haizhen; Zhang, Liuting; Huai-Jun, None Lin; Zhou, Qingjun; Wang, Fang; Yu, Zhiming; Ma, Jianmin

doi:10.1007/s12598-022-02029-7

Cited by 93 publications

(38 citation statements)

References 71 publications

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“…Hydrogen, a promising carrier for renewable energy, has attracted tremendous interest because of its environmental friendliness, extensive sources, and high energy density. − Nevertheless, the development of H 2 economy meets critical challenges in controllable storage and safe transportation. Catalytic H 2 production from liquid organic hydrogen carriers (LOHCs) is regarded as a convenient and effective approach. − As a major product from biomass conversion and CO 2 hydrogenation, formic acid (FA, HCOOH) has been considered as an ideal LOHC owing to its renewability, easy accessibility, a high volumetric capacity of 53 g H 2 /L, and convenient storage/transportation as a liquid. − FA can be selectively decomposed through dehydrogenation (HCOOH → H 2 + CO 2 , Δ G = −48.4 kJ mol –1 ) or dehydration (HCOOH → H 2 O + CO, Δ G = −28.5 kJ mol –1 ). , For FA as a source of H 2 , the latter reaction should be avoided to realize the maximum H 2 production and to inhibit the release of CO which is easy to cause fuel cell-based catalyst poisoning.…”

Section: Introductionmentioning

confidence: 99%

Amine-Functionalized Carbon Bowl-Supported Pd-La(OH)₃ for Formic Acid Dehydrogenation

et al. 2022

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Formic acid (HCOOH, FA) is emerging as an appealing carrier for hydrogen storage owing to its renewability, a high volumetric capacity of 53 g H 2 / L, and convenient storage/transportation as a liquid. It is highly desired but still a challenge to search highly efficient catalysts to realize hydrogen evolution from FA. Here, monodispersed and ultrasmall Pd−La(OH) 3 nanoparticles (NPs) anchored on amine-functionalized N-doped porous carbon bowl (N-PCB-NH 2 ) substrates have been fabricated through a facile wet chemistry approach. As a result of the ultrafine size of Pd−La(OH) 3 NPs (1.6 nm), the deprotonation ability of La(OH) 3 and amine groups, and the strong metal−support interaction between Pd− La(OH) 3 and N-PCB-NH 2 , the as-prepared Pd−La(OH) 3 /N-PCB-NH 2 catalyst exhibits 100% H 2 selectivity and exceptional catalytic property with a high turnover frequency value up to 9585 h −1 for FA dehydrogenation at 323 K, which is superior to most of the heterogeneous catalysts ever reported. Kinetic isotope effect measurements demonstrate that the C−H bond cleavage is a rate-determining step in the FA dehydrogenation reaction as compared to the O−H bond dissociation. This work presents a feasible approach to synthesize supported ultrafine metal NP catalysts with porous bowl structures for H 2 generation from FA.

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Section: Introductionmentioning

confidence: 99%

Amine-Functionalized Carbon Bowl-Supported Pd-La(OH)₃ for Formic Acid Dehydrogenation

et al. 2022

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“…Hydrogen (H 2 ) is believed to be an ideal energy carrier thanks to its high energy density and eco-friendly production possibilities. , Renewable electricity-powered hydrogen evolution reaction (HER) is a green and sustainable way to produce H 2 from water electrolysis, but it requires active electrocatalysts to reduce the large overpotentials that spawn unnecessary energy consumption. − Pt-based catalysts are the most efficient ones, but their practical use is seriously prohibited by the unsatisfactory stability, high price, and low earth abundance. , Researchers are endeavoring to exploit cost-efficient alternatives free from noble metal elements, which include transition metals/alloys and their borides, carbides, nitrides, phosphides, sulfides, etc. ,− Among them, early transition-metal-based carbides (e.g., Mo 2 C and W 2 C) have attracted interest owing to their similar electronic configurations to Pt and outstanding HER activity within a wide pH window. − Although progress has been made on these promising electrocatalysts, the design of ultrafine carbides that are robust under harsh preparation (high temperature) and working (corrosive electrolytes) conditions is still challenging, in particular, the scaled-up preparation with naturally available resources rather than expensive chemicals. , …”

Section: Introductionmentioning

confidence: 99%

“…13−15 Although progress has been made on these promising electrocatalysts, the design of ultrafine carbides that are robust under harsh preparation (high temperature) and working (corrosive electrolytes) conditions is still challenging, in particular, the scaled-up preparation with naturally available resources rather than expensive chemicals. 13,16 Biomass-derived carbon matrix features the merits of natural availability, low cost, environmental friendliness, and renewability. 17−19 So far, a large variety of waste biomass materials, including willow catkin, soybean powder, grass, pine needles, cotton fibrils, etc., have been introduced as precursors for preparing carbonaceous materials with rich porosity and large surface, which show promise for suitable energy conversion and storage.…”

Section: Introductionmentioning

confidence: 99%

Biomass-Derived Mo₂C@N, P Co-Doped Carbon as an Efficient Electrocatalyst for Hydrogen Evolution Reaction

et al. 2022

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Cost-efficient electrocatalysts derived from earth-abundant resources are urgently demanded for sustainable hydrogen production from water electrolysis. Here, biomass kapok fibers (KFs) are introduced to fabricate Mo2C@N, P co-doped carbon (Mo2C@NPC) core@shell electrocatalysts that are highly active for acidic and alkaline hydrogen evolution reaction (HER). After facile prestabilization in the presence of (NH4)2HPO4 and subsequent carbonization under an inert flow, naturally available kapok fibers convert to hollow carbon microtubes with N, P co-doping, which afterward serve as the self-template and support to obtain ultrafine Mo2C nanoparticles encapsulated by N, P co-doped carbon shells. Such shells not only boost the HER performance due to the optimized electronic configuration and the promoted conductivity but also protect Mo2C from corrosive electrolytes and result in satisfactory long-term durability. In 1.0 M HClO4 and 1.0 M KOH, Mo2C@NPC exhibits excellent performance among recently reported electrocatalysts free from noble metals, featured by low overpotentials of 127 and 155 mV at the current density of −10 mA cm–2 and the Tafel slope of 63 and 64 mV dec–1, respectively. The long-term durability of Mo2C@NPC can be confirmed by both accelerated degeneration and chronoamperometric tests. Elucidating efficient electrocatalysis on biomass-derived nanomaterials, this work will inspire further exploration of efficient electrocatalysts.

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“…Hydrogen is a clean energy source with a high calorific value (142.9 kJ g –1 ) and can be used in many industrial fields . However, hydrogen storage remains a critical issue for large-scale hydrogen energy applications .…”

Section: Introductionmentioning

confidence: 99%

“…Hydrogen is a clean energy source with a high calorific value (142.9 kJ g −1 ) and can be used in many industrial fields. 1 However, hydrogen storage remains a critical issue for largescale hydrogen energy applications. 2 Solid-state hydrogen storage materials have received much attention over the past several decades due to its large volumetric hydrogen density and low operating pressure.…”

Section: Introductionmentioning

confidence: 99%

Directed Stabilization by Air-Milling and Catalyzed Decomposition by Layered Titanium Carbide Toward Low-Temperature and High-Capacity Hydrogen Storage of Aluminum Hydride

Liu

et al. 2022

ACS Appl. Mater. Interfaces

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AlH3 is a metastable hydride with a theoretical hydrogen capacity of 10.01 wt % and is very easy to decompose during ball milling especially in the presence of many catalysts, which will lead to the attenuation of the available hydrogen capacity. In this work, AlH3 was ball milled in air (called “air-milling”) with layered Ti3C2 to prepare a Ti3C2-catalyzed AlH3 hydrogen storage material. Such air-milled and Ti3C2-catalyzed AlH3 possesses excellent hydrogen storage performances, with a low initial decomposition temperature of just 61 °C and a high hydrogen release capacity of 8.1 wt %. In addition, 6.9 wt % of hydrogen can be released within 20 min at constantly 100 °C, with a low activation energy as low as 40 kJ mol–1. Air-milling will lead to the formation of an Al2O3 oxide layer on the AlH3 particles, which will prevent continuous decomposition of AlH3 when milling with active layered Ti3C2. The layered Ti3C2 will grip on and intrude into the AlH3 particle oxide layers and then catalyze the decomposition of AlH3 during heating. The strategy employing air-milling as a synthesis method and utilizing layered Ti3C2 as a catalyst in this work can solve the key issue of severe decomposition during ball milling with catalysts economically and conveniently and thus achieve both high-capacity and low-temperature hydrogen storage of AlH3. This air-milling method is also effective for other active catalysts toward both reducing the decomposition temperature and increasing the available hydrogen capacity of AlH3.

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2022 roadmap on hydrogen energy from production to utilizations

Cited by 93 publications

References 71 publications

Amine-Functionalized Carbon Bowl-Supported Pd-La(OH)₃ for Formic Acid Dehydrogenation

Amine-Functionalized Carbon Bowl-Supported Pd-La(OH)₃ for Formic Acid Dehydrogenation

Biomass-Derived Mo₂C@N, P Co-Doped Carbon as an Efficient Electrocatalyst for Hydrogen Evolution Reaction

Directed Stabilization by Air-Milling and Catalyzed Decomposition by Layered Titanium Carbide Toward Low-Temperature and High-Capacity Hydrogen Storage of Aluminum Hydride

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2022 roadmap on hydrogen energy from production to utilizations

Cited by 93 publications

References 71 publications

Amine-Functionalized Carbon Bowl-Supported Pd-La(OH)3 for Formic Acid Dehydrogenation

Amine-Functionalized Carbon Bowl-Supported Pd-La(OH)3 for Formic Acid Dehydrogenation

Biomass-Derived Mo2C@N, P Co-Doped Carbon as an Efficient Electrocatalyst for Hydrogen Evolution Reaction

Directed Stabilization by Air-Milling and Catalyzed Decomposition by Layered Titanium Carbide Toward Low-Temperature and High-Capacity Hydrogen Storage of Aluminum Hydride

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Product

Resources

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Amine-Functionalized Carbon Bowl-Supported Pd-La(OH)₃ for Formic Acid Dehydrogenation

Amine-Functionalized Carbon Bowl-Supported Pd-La(OH)₃ for Formic Acid Dehydrogenation

Biomass-Derived Mo₂C@N, P Co-Doped Carbon as an Efficient Electrocatalyst for Hydrogen Evolution Reaction