Electrochemical N2 fixation by Cu-modified iron oxide dendrites

Cheng-rong, Huang; Shang, Longmei; Han, Peng; Gu, Zhengxiang; Al-Enizi, Abdullah M.; Almutairi, Tahani Mazyad; Cao, Na; Zheng, Gengfeng

doi:10.1016/j.jcis.2019.05.045

Cited by 39 publications

(31 citation statements)

References 33 publications

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“…Zheng et al reported as high as 24.40% efficiency for Fe 2 O 3 by modifying with copper. [142] Fe 2 O 3 /Cu was fabricated [143] Interestingly, NRR was observed at positive potential (0.023 V), however, yield (0.125 nmol s −1 mg −1 ) and efficiency (1.9%) found to be very low. FeMoO 4 was also scrutinized as a electrocatalyst for NRR.…”

Section: Fe Compoundsmentioning

confidence: 99%

“…Zheng et al reported as high as 24.40% efficiency for Fe 2 O 3 by modifying with copper. [ 142 ] Fe 2 O 3 /Cu was fabricated by electrodeposition method. It was proposed that Cu acts as efficient electron transfer substrate for Fe 2 O 3 which improves the selectivity of Fe 2 O 3 for N 2 , thus, boosting the efficiency of Fe 2 O 3 .…”

Section: Transition Metals or Elementsmentioning

confidence: 99%

mentioning

confidence: 99%

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Exploration and Investigation of Periodic Elements for Electrocatalytic Nitrogen Reduction

Patil

Wang

2020

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Section: Fe Compoundsmentioning

confidence: 99%

Section: Transition Metals or Elementsmentioning

confidence: 99%

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Exploration and Investigation of Periodic Elements for Electrocatalytic Nitrogen Reduction

Patil

Wang

2020

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“…In recent reports, metal dendrites have been proved with a wide application prospects in energy storage, catalysis, photovoltaic solar cell, and other fields, benefitting from the hyperbranched structure with high specific surface area, short charge transfer paths, and good electrical conductivity. Zheng et al prepared the Fe 2 O 3 /Cu composite through assembling Fe 2 O 3 on the surface of Cu dendrite as the outstanding electrocatalyst in the nitrogen reduction reaction . Shim et al constructed the hierarchical nanostructure Cu‐Co alloy dendrite by electrodeposition method to act as highly sensitive sensors for glucose and H 2 O 2 .…”

Section: Introductionmentioning

confidence: 99%

“…Zheng et al prepared the Fe 2 O 3 /Cu composite through assembling Fe 2 O 3 on the surface of Cu dendrite as the outstanding electrocatalyst in the nitrogen reduction reaction. 23 Shim et al constructed the hierarchical nanostructure Cu-Co alloy dendrite by electrodeposition method to act as highly sensitive sensors for glucose and H 2 O 2 . 24 Urbain et al revealed that the silver dendritic catalyst assembled on the 3D copper foam could effectively improve the electrocatalytic performance for CO 2 conversion to CO, and its maximum Faraday efficiency reached 95.7% at 0.8 V (vs RHE).…”

Section: Introductionmentioning

confidence: 99%

Controllable constructing alloy dendrites with fractal structure as free‐standing electrode for enhanced oxygen evolution

Zhang

Liu

2020

Int J Energy Res

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Summary The design of non–noble metal binderless electrode for enhanced electrocatalytic oxygen evolution is an unremitting challenge. Herein, we first report the construction of fractal structural alloy electrodes using controllable electrodeposition. Meanwhile, we have explored the regulation and morphology transition of metal dendrites in the electrolytic process. The metal wire‐type “one‐body” electrode prepared in the full‐immersion reactor demonstrates the unique three‐dimensional fractal structure with high branching degree and surface area. Moreover, the compositional turning of metal crystal via element doping is beneficial to improving the conductivity and crystal structure. The Ni and Zn elements are introduced to form Ni‐Fe and Zn‐Fe alloy dendrites, showing a preferable electrochemical catalytic oxygen evolution performance. The as‐prepared Ni‐Fe dendrite demonstrates a lower overpotential about 248 mV (vs RHE) at 10 mA cm−2 and Tafel slope of 55 mV dec−1 in the alkaline condition.

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Development of Electrocatalysts for Efficient Nitrogen Reduction Reaction under Ambient Condition

Liu

Chen

et al. 2020

Adv Funct Materials

165

120

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As one of the most important chemicals and an energy carrier, synthetic ammonia has been widely studied to meet the increasing demand. Among various strategies, electrochemical nitrogen reduction reaction (e‐NRR) is a promising way because of its green nature and easy set‐up on large‐scale. However, its practical application is extremely limited because of the very‐low production rate, which is strongly dependent on the electrocatalysts used. Therefore, searching novel efficient electrocatalysts for e‐NRR is essential to promote the technology. In this review, it highlights the insights on the mechanism for the NH3 electrochemical synthesis, recommend a reliable protocol for the ammonia detection, and systematically summarize the recent development on novel electrocatalysts, including noble metal‐based materials, single‐metal‐atom catalysts, non‐noble metal, and their compounds, and metal‐free materials, for efficient e‐NRR in both experimental and theoretical studies. Various strategies to improve the catalytic performance by increasing exposed active sites or tuning electronic structures, including surface control, defect engineering, and hybridization, are carefully discussed. Finally, perspectives and challenges are outlined. It can be expected that this review provides insightful guidance on the development of advanced catalytic systems to produce ammonia through N2 reduction.

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Electrochemical N2 fixation by Cu-modified iron oxide dendrites

Cited by 39 publications

References 33 publications

Exploration and Investigation of Periodic Elements for Electrocatalytic Nitrogen Reduction

Exploration and Investigation of Periodic Elements for Electrocatalytic Nitrogen Reduction

Controllable constructing alloy dendrites with fractal structure as free‐standing electrode for enhanced oxygen evolution

Development of Electrocatalysts for Efficient Nitrogen Reduction Reaction under Ambient Condition

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