Ammonia as an efficient COX-free hydrogen carrier: Fundamentals and feasibility analyses for fuel cell applications

Cha, Junyoung; Jo, Young Suk; Jeong, Hyangsoo; Han, Jonghee; Nam, Suk Woo; Song, Kwang Ho; Yoon, Chang Won

doi:10.1016/j.apenergy.2018.04.100

Cited by 98 publications

(38 citation statements)

References 48 publications

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“…[6][7][8][9] NH 3 is also widely used as a fuel in fuel cell. [10,11] Therefore, NH 3 will play an increasingly important role in the development of human society and economy with the increasing population. N 2 accounts for 78 % of the atmosphere, because of its powerful N�N bond, it is largely not involved in chemical reactions.…”

Section: A Flower-like Bismuth Oxide As An Efficient Durable and Selmentioning

confidence: 99%

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A Flower‐like Bismuth Oxide as an Efficient, Durable and Selective Electrocatalyst for Artificial N₂ Fixation in Ambient Condition

et al. 2019

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Ammonia is a basic industrial chemical, which is widely used in industry and agriculture. Traditional Haber–Bosch N2 fixation process is not environmentally friendly, which not only excessively consumes energy, but releases enormous amount of greenhouse gas. Electrochemical N2 reduction is an ideal alternative to N2 fixation, but it requires effective electrocatalyst for N2 reduction reaction (NRR). Herein, we develop a flower‐like β‐Bi2O3 catalyst for artificial N2 fixation with outstanding NRR performance and selectivity in ambient condition. This β‐Bi2O3 nanoflower shows an excellent NH3 yield of 19.92 μg h−1 mg−1cat. and Faradaic Efficiency of 4.3 % at −0.8 V in 0.1 M Na2SO4 solution, better than most reported NRR electrocatalysts. This electrocatalyst also exhibits superb electrochemical stability and durability.

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Section: A Flower-like Bismuth Oxide As An Efficient Durable and Selmentioning

confidence: 99%

“…Meanwhile, NH 3 is considered as an ideal energy storage medium, because the hydrogen content in the liquid ammonia reaches 17.6 % . NH 3 is also widely used as a fuel in fuel cell ,. Therefore, NH 3 will play an increasingly important role in the development of human society and economy with the increasing population.…”

Section: Figurementioning

confidence: 99%

A Flower‐like Bismuth Oxide as an Efficient, Durable and Selective Electrocatalyst for Artificial N₂ Fixation in Ambient Condition

et al. 2019

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“…For decades, the utilization of NH 3 for agricultural, military, and commercial applications has been on the increase. [ 1–4 ] However, inevitable NH 3 leakage during its utilization exerts a huge adverse impact on the environment and human health. Since NH 3 is colorless and corrosive with a pungent odor, it is extremely hazardous to human health even in dilute concentrations.…”

Section: Introductionmentioning

confidence: 99%

Engineered Removal of Trace NH₃ by Porous Organic Polymers Modified via Sequential Post‐Sulfonation and Post‐Alkylation

Kang

Kim

et al. 2020

Advanced Sustainable Systems

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Although NH3 is damaging to human health and the environment, a smart synthetic route toward adsorbents with controllable adsorption and desorption properties at ultralow concentrations remains unexplored. Herein, double postsynthetically modified porous organic polymers, obtained via post‐sulfonation and post‐alkylation, are reported. The sulfonated adsorbent, 1S, exhibits a record‐high NH3 capacity (4.03 mmol g−1) at ≈500 ppm. Notably, the polymer can capture NH3 even at a ppb concentration level. Hydrophobization of the sulfonated materials with alkyl chains affords cost‐effective and scalable adsorbents (1SCx and 1ESCx), which possess a high contact angle (≈120°) with water, thus resulting in rapid desorption kinetics and exceptional recyclability under dry and humid conditions at room temperature. This is the first demonstration of this design strategy for the control of the desorption of NH3 among porous adsorbents.

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“…[1] Furthermore, combustion of ammonia mixed with conventional fuels or ammonia gas as fuel gas has been proved to be ac leanere nergy source com-pared to traditional fuels. For the past severald ecades, these nitrogen-containing compounds have been mainly used in the agricultural industry;h owever,t here are many more emerging applicationsi nt he sustainable energy field.…”

Section: Introductionmentioning

confidence: 99%

Sustainable Non‐Thermal Plasma‐Assisted Nitrogen Fixation—Synergistic Catalysis

et al. 2019

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In this Minireview, the multiple chemical synergies present in catalytic non‐thermal plasma‐assisted nitrogen fixation (NTPNF) are uncovered through a critical exploration of the underlying mechanisms, during which the catalyst, plasma, and reactants play different roles. For the gas‐phase NTPNF, the synergies consist of different aspects of the catalytic pathways such as electron‐impact dissociation; Zeldovich mechanism in the PNO interactions; and Eley–Rideal, Langmuir–Hinshelwood, surface adsorption, and diffusion mechanisms for the plasma–catalyst interactions. The synergies within the gas–liquid NTPNF involve contributions of plasma and UV excitation to the gas‐phase reactions and the UV excitation of molecules at the liquid–surface interface, which improves synthesis of aqueous nitrate, nitrite, and ammonium products. Based on the various synergistic mechanisms during NTPNF, future potential applications are proposed for how NTPNF could benefit the sustainable nitrogen fixation industry.

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Ammonia as an efficient COX-free hydrogen carrier: Fundamentals and feasibility analyses for fuel cell applications

Cited by 98 publications

References 48 publications

A Flower‐like Bismuth Oxide as an Efficient, Durable and Selective Electrocatalyst for Artificial N₂ Fixation in Ambient Condition

A Flower‐like Bismuth Oxide as an Efficient, Durable and Selective Electrocatalyst for Artificial N₂ Fixation in Ambient Condition

Engineered Removal of Trace NH₃ by Porous Organic Polymers Modified via Sequential Post‐Sulfonation and Post‐Alkylation

Sustainable Non‐Thermal Plasma‐Assisted Nitrogen Fixation—Synergistic Catalysis

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Ammonia as an efficient COX-free hydrogen carrier: Fundamentals and feasibility analyses for fuel cell applications

Cited by 98 publications

References 48 publications

A Flower‐like Bismuth Oxide as an Efficient, Durable and Selective Electrocatalyst for Artificial N2 Fixation in Ambient Condition

A Flower‐like Bismuth Oxide as an Efficient, Durable and Selective Electrocatalyst for Artificial N2 Fixation in Ambient Condition

Engineered Removal of Trace NH3 by Porous Organic Polymers Modified via Sequential Post‐Sulfonation and Post‐Alkylation

Sustainable Non‐Thermal Plasma‐Assisted Nitrogen Fixation—Synergistic Catalysis

Contact Info

Product

Resources

About

A Flower‐like Bismuth Oxide as an Efficient, Durable and Selective Electrocatalyst for Artificial N₂ Fixation in Ambient Condition

A Flower‐like Bismuth Oxide as an Efficient, Durable and Selective Electrocatalyst for Artificial N₂ Fixation in Ambient Condition

Engineered Removal of Trace NH₃ by Porous Organic Polymers Modified via Sequential Post‐Sulfonation and Post‐Alkylation