Simultaneous Photoelectrocatalytic Oxidation and Nitrite‐Ammonia Conversion with Artificial Photoelectrochemistry Cells

Song, Yurou; Wu, Yunzhen; Cao, Shuyan; Zhang, Yanxue; Luo, Degen; Gao, Junfeng; Li, Zhuwei; Sun, Licheng; Hou, Jungang

doi:10.1002/aenm.202201782

Cited by 15 publications

(8 citation statements)

References 79 publications

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“…The diameter of semi-circles represents the charge transfer resistance (R ct ) of electrode-electrolyte interface, which reflects the electron transfer kinetics at the photoanode/electrolyte interface. [55] R ct values of the BiVO 4 , Co-a g ZIF-62/BiVO 4 and Co-a g ZIF-62/NiO/BiVO 4 photoanodes are 374.0, 128.3 and 82.4 Ω, respectively. The EIS measurements reveal that MOF glass Co-a g ZIF-62 catalyst significantly facilitates the interfacial charge transfer and reduces the electron transfer resistance.…”

Section: Methodsmentioning

confidence: 97%

Metal‐Organic Framework Glass Catalysts from Melting Glass‐Forming Cobalt‐Based Zeolitic Imidazolate Framework for Boosting Photoelectrochemical Water Oxidation

et al. 2023

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Sluggish oxygen evolution kinetics and serious charge recombination restrict the development of photoelectrochemical (PEC) water splitting. The advancement of novel metal-organic frameworks (MOFs) catalysts bears practical significance for improving PEC water splitting performance. Herein, a MOF glass catalyst through melting glass-forming cobalt-based zeolitic imidazolate framework (Co-a g ZIF-62) was introduced on various metal oxide (MO: Fe 2 O 3 , WO 3 and BiVO 4 ) semiconductor substrates coupled with NiO hole transport layer, constructing the integrated Co-a g ZIF-62/NiO/ MO photoanodes. Owing to the excellent conductivity, stability and open active sites of MOF glass, Co-a g ZIF-62/NiO/MO photoanodes exhibit a significantly enhanced photoelectrochemical water oxidation activity and stability in comparison to pristine MO photoanodes. From experimental analyses and density functional theory calculations, Co-a g ZIF-62 can effectively promote charge transfer and separation, improve carrier mobility, accelerate the kinetics of oxygen evolution reaction (OER), and thus improve PEC performance. This MOF glass not only serves as an excellent OER cocatalyst on tunable photoelectrodes, but also enables promising opportunities for PEC devices for solar energy conversion.

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Section: Methodsmentioning

confidence: 97%

Metal‐Organic Framework Glass Catalysts from Melting Glass‐Forming Cobalt‐Based Zeolitic Imidazolate Framework for Boosting Photoelectrochemical Water Oxidation

et al. 2023

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“…Alcohol oxidation is the anodic reaction in fuel cells which converts chemical energy into electrical energy. Instead of studying alcohol oxidation reaction alone, devices combing the alcohol oxidation with HER, NRR or CO 2 RR have been researched for multiple applications. − However, the works related to 2D HJs are not reported yet. Pt is currently used as the most effective and stable catalyst for alcohol oxidation; thus the attempt to reduce the amount of Pt by spreading Pt nanoparticles on cheaper and stable substrates with optoelectronic properties is a trend in this field.…”

Section: Photoelectrochemical Applications Of 2d Materialsmentioning

confidence: 99%

Two-Dimensional Layered Heterojunctions for Photoelectrocatalysis

Wang,

Langer,

Altieri

et al. 2024

ACS Nano

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Two-dimensional (2D) layered nanomaterial heterostructures, arising from the combination of 2D materials with other low-dimensional species, feature a large surface area to volume ratio, which provides a high density of active sites for catalytic applications and for (photo)electrocatalysis (PEC). Meanwhile, their electronic band structure and high electrical conductivity enable efficient charge transfer (CT) between the active material and the substrate, which is essential for catalytic activity. In recent years, researchers have demonstrated the potential of a range of 2D material interfaces, such as graphene, graphitic carbon nitride (g-C3N4), metal chalcogenides (MCs), and MXenes, for (photo)electrocatalytic applications. For instance, MCs such as MoS2 and WS2 have shown excellent catalytic activity for hydrogen evolution, while graphene and MXenes have been used for the reduction of carbon dioxide to higher value chemicals. However, despite their great potential, there are still major challenges that need to be addressed to fully realize the potential of 2D materials for PEC. For example, their stability under harsh reaction conditions, as well as their scalability for large-scale production are important factors to be considered. Generating heterojunctions (HJs) by combining 2D layered structures with other nanomaterials is a promising method to improve the photoelectrocatalytic properties of the former. In this review, we inspect thoroughly the recent literature, to demonstrate the significant potential that arises from utilizing 2D layered heterostructures in PEC processes across a broad spectrum of applications, from energy conversion and storage to environmental remediation. With the ongoing research and development, it is likely that the potential of these materials will be fully expressed in the near future.

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“…Ammoniais generally used as a high value-added chemical raw material in agriculture and industry, such as fertilizers, textiles, and synthetic fibre. [1][2][3][4] Currently, industrial preparation of NH 3 is mainly achieved by Haber-Bosch method, which is highly energy-intensive process, accompanying with greenhouse gas emissions. [5][6][7] Recently, there has been widespread interest in the nitrogenelectroreduction under ambient temperature and pressure conditions.…”

Section: Introductionmentioning

confidence: 99%

“…), such as nitrate and nitrite, are emitted more frequently with development of industry, which pollutes the environment. [15][16][17] NO 3 − can be easily reduced to NO 2 − . [18] The World Health Organization's International Agency announced that NO 2 − was a class 2A carcinogen in 2017.…”

mentioning

confidence: 99%

Highly Efficient Electroenzymatic Cascade Reduction Reaction For The Conversion of Nitrite to Ammonia

Zhu

Fan

Lin

et al. 2023

Advanced Energy Materials

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RR) under mild conditions is still challenging. Enzyme is well-known for its high efficiency and specificity under mild conditions. Electroenzymatic cascade systems combining the advantages of electrocatalysis andThe electrochemical nitrite reduction reaction provides an alternative approach to offer sustainable ammonia source routes for repairing imbalances in the global nitrogen cycle. In this work, electrocatalysis is combined with enzymatic catalysis to provide an efficient and clean process for recoverable ammonia production. NO 2 − is reduced to NH 3 by electroenzymatic cascade reduction reaction on a bioconjugate, in which 1-butyl-3-methylimidazolium bromide (IL BMB ) modified chloroperoxidase (CPO) is fixed on polyethyleneimine (PEI) modified multi-walled carbon nanotubes (MWCNT) to from bioconjugate (CPO-IL BMB /MWCNT-PEI). 15 N and 14 N isotope labeling reveal that the NH 3 species is derived from NO 2 − reduction. Density functional theory calculations identify that the Fe II species in heme center of CPO serve as the key active site for NO 2 − reduction. The amino groups derived from MWCNT-PEI not only serve as a bridge to covalently immobilize CPO but also enrich the NO 2 − ion at electrode/solution interface through electrostatic interactions. The low energy barrier of NO 2 − reduction and low adsorption free energy of the intermediate result in high Faradaic efficiency (96.4%), NH 3 yield (112.7 mg h −1 mg CPO −1 ), and high selectivity in pH 5.0 solution. The highly efficient electroenzymatic reaction ensurespromising applications in the conversion of NO 2 − to NH 3 .

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Simultaneous Photoelectrocatalytic Oxidation and Nitrite‐Ammonia Conversion with Artificial Photoelectrochemistry Cells

Cited by 15 publications

References 79 publications

Metal‐Organic Framework Glass Catalysts from Melting Glass‐Forming Cobalt‐Based Zeolitic Imidazolate Framework for Boosting Photoelectrochemical Water Oxidation

Metal‐Organic Framework Glass Catalysts from Melting Glass‐Forming Cobalt‐Based Zeolitic Imidazolate Framework for Boosting Photoelectrochemical Water Oxidation

Two-Dimensional Layered Heterojunctions for Photoelectrocatalysis

Highly Efficient Electroenzymatic Cascade Reduction Reaction For The Conversion of Nitrite to Ammonia

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