A Decade of Electrochemical Ammonia Synthesis

Article Chemistry, Physical

Increasing Current Density of Li-Mediated Ammonia Synthesis with High Surface Area Copper Electrodes

Katja Li et al.

Summary: The current density and ammonia formation rates were significantly improved by synthesizing high surface area Cu electrodes through hydrogen bubbling templating (HBT) on Ni foam substrates. Increasing the electrolyte salt concentration was found to enhance the stability of the system.

ACS ENERGY LETTERS (2022)

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Article Chemistry, Physical

Prospects for Aerobic Photocatalytic Nitrogen Fixation

Yu-Hsuan Liu et al.

Summary: The production of decarbonized ammonia through photocatalytic nitrogen fixation has the potential to revolutionize farm-scale fertilizer production. However, the cost of a complete photocatalytic system remains a critical factor. In this study, we found that the air separation unit accounts for a significant portion of the total system cost. Therefore, it is crucial to develop catalysts that can tolerate trace oxygen or operate under aerobic conditions to achieve cost parity with the traditional Haber-Bosch process. Among the various metal-doped titania photocatalysts, vanadium- and ruthenium-doped titania demonstrated consistent performance under aerobic conditions.

ACS ENERGY LETTERS (2022)

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Article Multidisciplinary Sciences

Electroreduction of nitrogen with almost 100% current-to-ammonia efficiency

Hoang-Long Du et al.

Summary: Ammonia is considered a potential replacement for carbon-based fuels and a carrier for global renewable energy transportation, with the need to transform existing NH3 production technology into a simpler and scale-flexible electrochemical lithium-mediated nitrogen reduction reaction.

NATURE (2022)

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Article Chemistry, Physical

Cost and Performance Targets for Fully Electrochemical Ammonia Production under Flexible Operation

Nikifar Lazouski et al.

Summary: Producing ammonia from water and air through electrochemical processes is an attractive method to reduce CO2 emissions, but it requires efficient electrochemical reactors and suitable alternative chemistry.

ACS ENERGY LETTERS (2022)

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Article Chemistry, Physical

Electrosynthesis of ammonia with high selectivity and high rates via engineering of the solid-electrolyte interphase

Shaofeng Li et al.

Summary: In this study, a highly efficient lithium-mediated ammonia synthesis process was proposed, which could enhance the ammonia production rate and faradaic efficiency by forming a uniform solid-electrolyte interphase (SEI) layer on a porous copper electrode.

JOULE (2022)

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Article Chemistry, Physical

Ammonia Synthesis at Ambient Conditions via Electrochemical Atomic Hydrogen Permeation

Davide Ripepi et al.

Summary: The study demonstrates a new electrochemical method for producing ammonia at room temperature, reducing carbon emissions and saving energy. By spatially separating the electrolyte and hydrogen reduction side from the dinitrogen activation and hydrogenation sites, the strategy successfully achieved the electrochemical reaction of hydrogen and nitrogen gas.

ACS ENERGY LETTERS (2021)

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Article Chemistry, Physical

Ammonia and Nitric Acid Demands for Fertilizer Use in 2050

Jeonghoon Lim et al.

Summary: Access to nitrogen-based fertilizers is crucial for maximizing agricultural yield, but the production process contributes significantly to carbon emissions. The market size and value of ammonia and nitric acid will be heavily influenced by the growing global population and food demand over the next three decades. Developing carbon-free technologies for nitrogen and nitrate reduction to meet fertilizer manufacturing demands is essential to address the environmental impact of current production methods.

ACS ENERGY LETTERS (2021)

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Article Multidisciplinary Sciences

Methods for nitrogen activation by reduction and oxidation

Haldrian Iriawan et al.

Summary: The article introduces the importance of the industrial Haber-Bosch process for producing ammonia in modern society, discusses the challenges of N-2 activation and the drawbacks of the Haber-Bosch process, proposes new strategies for sustainable N-2 activation, compares the latest research results from different catalytic reactions, and discusses best practices for improving reproducibility and cost-effective methods for rigorous experimentation.

NATURE REVIEWS METHODS PRIMERS (2021)

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Review Chemistry, Physical