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Recent advances and challenges of nitrogen/nitrate electro catalytic reduction to ammonia synthesis

Frontiers in Energy 2024, Volume 18, Issue 2,   Pages 128-140 doi: 10.1007/s11708-023-0908-2

Abstract: Electrochemical synthesis of ammonia is a green and mild new method for preparing ammonia, which candirectly convert nitrogen or nitrate into ammonia using electricity driven by solar, wind, or water energyHerein, the basic mechanism of the nitrogen reduction reaction (NRR) to ammonia and nitrate reductionreaction ( Keywords: electrochemical ammonia synthesis     nitrogen     nitrate     nitrogen reduction reaction (NRR) to ammonia     nitratereduction reaction (NO–3 RR)    

Advances in catalysts and reaction systems for electro/photocatalytic ammonia production

Frontiers of Chemical Science and Engineering doi: 10.1007/s11705-024-2463-8

Abstract: Ammonia is a vital component in the fertilizer and chemical industries, as well as serving as a significantHowever, the efficiency of electro/photocatalytic nitrogen reduction reaction is hindered by the challengesIn this review, recent advancements in electro/photocatalytic nitrogen reduction are summarized, encompassingthe complex reaction mechanisms, as well as the effective strategies for developing electro/photocatalyticcatalysts and advanced reaction systems.

Keywords: ammonia synthesis     electro/photocatalysis     nitrogen fixation     reaction system     economic and efficiency    

Platinum on nitrogen doped graphene and tungsten carbide supports for ammonia electro-oxidation reaction

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 930-938 doi: 10.1007/s11705-021-2130-2

Abstract: Ammonia electrooxidation reaction involving multistep electron-proton transfer is a significant reactionfor fuel cells, hydrogen production and understanding nitrogen cycle.Platinum has been established as the best electrocatalyst for ammonia oxidation in aqueous alkaline mediaIn this study, Pt/nitrogen-doped graphene (NDG) and Pt/tungsten monocarbide (WC)/NDG are synthesizedby a wet chemistry method and their ammonia oxidation activities are compared to commercial Pt/C.

Keywords: Ammonia electro-oxidation reaction     electrocatalyst supports     platinum     nitrogen doped graphene     tungsten    

Multi-stage ammonia production for sorption selective catalytic reduction of NO

Chen ZHANG, Guoliang AN, Liwei WANG, Shaofei WU

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 840-851 doi: 10.1007/s11708-021-0797-1

Abstract: Sorption selective catalytic reduction of nitrogen oxides (NOx) (sorption-SCR) hasever been proposed for replacing commercial urea selective catalytic reduction of NOxammonia production cycles is built to solve the problem of relative highstarting temperature with ammonia transfer (AT) unit and help detect the remaining ammonia in ammoniastorage and delivery system (ASDS) with ammonia warning (AW) unit.

Keywords: selective catalytic reduction (SCR)     nitrogen oxides (NOx)     ammonia     composite sorbent    

Overlooked nitrogen-cycling microorganisms in biological wastewater treatment

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1426-2

Abstract:

• AOA and comammox bacteria can be more abundant and active than AOB/NOB at WWTPs.

Keywords: Ammonia oxidizing archaea (AOA)     Complete ammonia oxidizing (comammox) bacteria     Dissimilatory nitratereduction to ammonium (DNRA) bacteria     Nitrate/nitrite-dependent anaerobic methane oxidizing (NO   

Electrocatalytic reduction of NO to NH in ionic liquids by P-doped TiO nanotubes

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 6,   Pages 726-734 doi: 10.1007/s11705-022-2274-8

Abstract: Designing advanced and cost-effective electrocatalytic system for nitric oxide (NO) reduction reactionNoteworthy, the obtained performance metrics are significantly larger than those for N2 reductionreaction.Moreover, the utilization of IL further suppresses the competitive hydrogen evolution reaction.

Keywords: nitric oxide reduction reaction     electrcatalysis     ammonia production     phosphorus-doped titania    

Influence of Fe on electrocatalytic activity of iron-nitrogen-doped carbon materials toward oxygen reductionreaction

Lin LI, Cehuang FU, Shuiyun SHEN, Fangling JIANG, Guanghua WEI, Junliang ZHANG

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 812-821 doi: 10.1007/s11708-020-0669-0

Abstract: The development of highly active nitrogen-doped carbon-based transition metal (M-N-C) compounds for theoxygen reduction reaction (ORR) in proton exchange membrane fuel cells (PEMFCs) greatly helps reduce

Keywords: oxygen reduction reaction     Fe-N-C     active sites     Fe addition     second heat treatment    

The evaluation method of best available technology for emission reduction of ammonia in nitrogen fertilizer

Luo Qijin,Chen Jianyu,Wang Zhenxing,Pang Zhihua,Ye Wansheng

Strategic Study of CAE 2014, Volume 16, Issue 8,   Pages 88-92

Abstract:

According to the request of emission reduction of industry and totalammonia amount control in 12th five-year plan periods,this paper investigates the comprehensive evaluationmethods of emission reduction technologies---a case study of nitrogen fertilizer.evaluation method were combined,a kind of evaluation method of best available technology for emission reductionof ammonia in nitrogen fertilizer industry was developed.The modeling process of the mathematical model

Keywords: ammonia     total amount control     comprehensive evaluation    

Plasma-assisted ammonia synthesis under mild conditions for hydrogen and electricity storage: Mechanisms

Frontiers in Energy doi: 10.1007/s11708-024-0949-1

Abstract: Ammonia, with its high hydrogen storage density of 17.7 wt.% (mass fraction), cleanliness, efficiencyHowever, the traditional Haber−Bosch (H−B) process for ammonia synthesis necessitates high temperatureand atmospheric pressures, utilizing nitrogen and hydrogen radicals excited by energetic electrons,technology at atmospheric pressure, covering the reaction pathway, mechanism, and catalyst system involvedin plasma nitrogen fixation.

Keywords: plasma catalysis     nitrogen fixation     ammonia synthesis     hydrogen storage     catalyst     carbon neutralization    

ROOT EXUDATES FROM CANOLA EXHIBIT BIOLOGICAL NITRIFICATION INHIBITION AND ARE EFFECTIVE IN INHIBITING AMMONIA

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 2,   Pages 177-186 doi: 10.15302/J-FASE-2021421

Abstract:

A range of plant species produce root exudates that inhibit ammonia-oxidizing microorganisms.Root exudates were collected and their inhibition of the ammonia oxidizing bacterium, Nitrosospira

Keywords: ammonia oxidizing microorganisms / biological nitrification inhibition / farming rotations / nitrogencycling / nitrogen use efficiency    

IMPROVING NITROGEN SAFETY IN CHINA: NITROGEN FLOWS, POLLUTION AND CONTROL

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 3,   Pages 465-474 doi: 10.15302/J-FASE-2022454

Abstract:

● It is necessary to address the N flows and their impacts on environment in China for sustainable N management.

Keywords: barriers     future management     ammonia emissions     nitrogen input     water N pollution    

3O4 on HZSM-5 support: designing applicable catalysts for selective catalytic reductionof nitrogen oxides by ammonia

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1741-1754 doi: 10.1007/s11705-023-2332-x

Abstract: sub>O4/ZSM-5 catalysts with different loadings have been prepared for selective catalytic reductionof nitrogen oxides by ammonia.quantities of surface active oxygen (O2) and acid sites are crucial for the reactionstate, which is favorable to generate the two kinds of active sites, hence promoting the performance of ammoniaselective catalytic reduction of nitrogen oxide.

Keywords: Co3O4/ZSM-5     NOx-SCR by NH3     monolayer dispersion threshold effect     surface acid sites     surface active O2 anions    

Research progress and prospects of complete ammonia oxidizing bacteria in wastewater treatment

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 9, doi: 10.1007/s11783-022-1555-2

Abstract:

• Comammox bacteria have unique physiological characteristics.

Keywords: Complete ammonia oxidizing (comammox) bacteria     Nitrogen cycle     Physiological characteristics     Wastewater    

Selective reduction of NO by photo-SCR with ammonia in an annular fixed-film photoreactor

YiangChen CHOU, Young KU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2,   Pages 149-155 doi: 10.1007/s11783-010-0296-9

Abstract: Experimental results showed that selective catalytic reduction of NO with ammonia over TiO in the presenceof oxygen was a spontaneous reaction in dark.The ammonia and oxygen molecules played the roles of reductant and oxidant for NO reduction and activeThe reduction of NO was found to be increased with the increase of inlet ammonia and oxygen concentrationsThe kinetic model proposed in this study can be used to reasonably describe the reaction mechanism of

Keywords: photo-SCR     photocatalysis     NO reduction     Eley-Rideal model    

Concurrent adsorption and reduction of chromium(VI) to chromium(III) using nitrogen-doped porous carbon

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 5, doi: 10.1007/s11783-021-1491-6

Abstract:

• A high-efficiency N-doped porous carbon adsorbent for Cr(VI) was synthesized.

Keywords: Chromium(VI)     Nitrogen-doped porous carbon     Adsorption     Reduction     Loofah sponge    

Title Author Date Type Operation

Recent advances and challenges of nitrogen/nitrate electro catalytic reduction to ammonia synthesis

Journal Article

Advances in catalysts and reaction systems for electro/photocatalytic ammonia production

Journal Article

Platinum on nitrogen doped graphene and tungsten carbide supports for ammonia electro-oxidation reaction

Journal Article

Multi-stage ammonia production for sorption selective catalytic reduction of NO

Chen ZHANG, Guoliang AN, Liwei WANG, Shaofei WU

Journal Article

Overlooked nitrogen-cycling microorganisms in biological wastewater treatment

Journal Article

Electrocatalytic reduction of NO to NH in ionic liquids by P-doped TiO nanotubes

Journal Article

Influence of Fe on electrocatalytic activity of iron-nitrogen-doped carbon materials toward oxygen reductionreaction

Lin LI, Cehuang FU, Shuiyun SHEN, Fangling JIANG, Guanghua WEI, Junliang ZHANG

Journal Article

The evaluation method of best available technology for emission reduction of ammonia in nitrogen fertilizer

Luo Qijin,Chen Jianyu,Wang Zhenxing,Pang Zhihua,Ye Wansheng

Journal Article

Plasma-assisted ammonia synthesis under mild conditions for hydrogen and electricity storage: Mechanisms

Journal Article

ROOT EXUDATES FROM CANOLA EXHIBIT BIOLOGICAL NITRIFICATION INHIBITION AND ARE EFFECTIVE IN INHIBITING AMMONIA

Journal Article

IMPROVING NITROGEN SAFETY IN CHINA: NITROGEN FLOWS, POLLUTION AND CONTROL

Journal Article

3O4 on HZSM-5 support: designing applicable catalysts for selective catalytic reductionof nitrogen oxides by ammonia

Journal Article

Research progress and prospects of complete ammonia oxidizing bacteria in wastewater treatment

Journal Article

Selective reduction of NO by photo-SCR with ammonia in an annular fixed-film photoreactor

YiangChen CHOU, Young KU

Journal Article

Concurrent adsorption and reduction of chromium(VI) to chromium(III) using nitrogen-doped porous carbon

Journal Article