Vacancy-enabled N2 activation for ammonia synthesis on an Ni-loaded catalyst

Ye, Tian Nan; Park, SangWon; Lu, Yangfan; Jiang, Li; Sasase, Masato; Kitano, Masaaki; Tada, Tomofumi; Hosono, Hideo

doi:10.1038/s41586-020-2464-9

Cited by 340 publications

(312 citation statements)

References 38 publications

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“…Then, the free hydrogen on Ni reacts with the adsorbed N 2 to form NH x species. Moreover, as shown in Figure 7 (B–C), although the (111) plane is clear for the initial Ni/LaN, local distortion is introduced after H 2 ‐pretreated, indicating that the LaN framework is distorted by the formation of a large number of N‐vacancy sites [51] …”

Section: Application Of Defect Chemistry In Electrode Materialsmentioning

confidence: 95%

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Defect Chemistry on Electrode Materials for Electrochemical Energy Storage and Conversion

Zhang

Long

et al. 2020

ChemNanoMat

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Efficient and sustainable clean energy technology is an urgent need to solve energy crisis and alleviate environmental pollution. Reasonable design of electrode materials can effectively improve the performance of electrochemical energy storage and conversion devices. As an effective method to control the properties of electrode materials, defects have recently received extensive attention. Herein, in this review, we will systematically summarize the application of defect chemistry on electrode materials for electrochemical energy storage and conversion. Firstly, we mainly describe the research content of defect chemistry from three aspects, including defect construction, the dynamic evolution and regulation of defects. Based on those understanding, the applications of defect chemistry in fuel cells, metal‐ion batteries and carbon/nitrogen fixation are discussed, respectively. Finally, the existing challenges and future development prospects of defect chemistry are proposed. Overall, we hope this review could help readers to better understand and apply defect chemistry on electrode materials.

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Section: Application Of Defect Chemistry In Electrode Materialsmentioning

confidence: 95%

Section: Application Of Defect Chemistry In Electrode Materialsmentioning

confidence: 99%

Defect Chemistry on Electrode Materials for Electrochemical Energy Storage and Conversion

Zhang

Long

et al. 2020

ChemNanoMat

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“…[93] Recent contemporary studies on Ni loaded lanthanum nitride (LaN) and LaN promoted Ru/ZrH 2 catalyst disclosed nitrides with surface nitrogen vacancies can efficiently activate the N 2 . [94,95] The NH 3 synthesis on Ni/LaN catalyst occur though dual site mechanism that evades commonly challenged scaling factors. Kinetic, isotope labelling and DFT studies confirm the formation of N vacancies at surface with small formation energy, efficiently bind, and activate N 2 .…”

Section: Ni 2 Mo 3 N(2-3-1) With Different Compositions Than Co 3 Mo mentioning

confidence: 99%

Recent Advances in Heterogeneous Catalysis for Ammonia Synthesis

Marakatti

Gaigneaux

2020

ChemCatChem

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“…Ammonia (NH3) has been deemed as an energy carrier for hydrogen besides as a main component in chemical fertilizers. [1][2][3] Therefore, greater demand for NH3 is foreseeable. [4][5] The industrial NH3 synthesis through the classical Haber-Bosch process demands drastic reaction conditions of high pressures (15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25) and temperatures (300-550 o C), 6 which consumes 1-2% of the world's annual energy supply.…”

Section: Introductionmentioning

confidence: 99%

“…[17][18][19][20][21][22][23] Currently, the reduction treatment of exhaust gas NOx (such as NO and NO2) from the stationary sources requires considerable energy since this process is conducted at high temperature (> 400 °C). [1][2] Our approach is to convert NOx into NO3solution by oxidation and leaching absorption process and subsequent effectively convert NO3into value-added NH3. 23 Hence the technology of electrocatalytic NH3 synthesis from NO3reduction is also expected to incorporated into an existing technological to control NOx emission and further obtain valuable H2 and fertilizers ( Figure S1).…”

Section: Introductionmentioning

confidence: 99%

Alloying effect-induced electron polarization drives nitrate reduction to ammonia

Yin

Peng

Xiong

et al. 2020

Preprint

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Electrocatalytic conversion of nitrate (NO3-) to ammonia (NH3) holds significant potential in the control of nitrogen oxide (NOx) from stationary sources. However, previous studies on reaction intermediates remain unclear. Here we report that Pd/Cu2O hybrids with mesoporous hollow sphere structure show high selectivity (96.70%) and Faradaic efficiency (94.32%) for NH3 synthesis from NO3-. Detailed characterizations demonstrate that (1) Pd enables electrons transfer (Pd 3d → Cu 3d) and makes the polarization of Cu 3d orbitals by forming partial PdCu alloys, which makes Pd electron-deficiency but offers empty orbits to adsorb NO3-; (2) electron-rich Cu are more conducive to the occurrence of NO3- reduction. The mutual confirmation of online differential electrochemical mass spectrometry and density functional theory calculations demonstrates that PdCu alloys block the generation of *NOH intermediate and facilitate the formation of *N, finally leading to a higher catalytic performance.

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Vacancy-enabled N2 activation for ammonia synthesis on an Ni-loaded catalyst

Cited by 340 publications

References 38 publications

Defect Chemistry on Electrode Materials for Electrochemical Energy Storage and Conversion

Defect Chemistry on Electrode Materials for Electrochemical Energy Storage and Conversion

Recent Advances in Heterogeneous Catalysis for Ammonia Synthesis

Alloying effect-induced electron polarization drives nitrate reduction to ammonia

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