Hydration‐effect Boosted Active Hydrogen Facilitates Neutral Ammonia Electrosynthesis from Nitrate Reduction

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 8, 2024

Abstract Electrocatalytic nitrate reduction to ammonia (NO 3 RR) in a neutral medium is green and effective strategy for treating pollution meanwhile producing ammonia. However, the insufficient active hydrogen (H * ) on catalyst surface resulting from sluggish Volmer step 2 O → H + OH − ), competitive evolution reaction (HER) caused by coupling severely restrict enhancement of NO RR activity. Herein, hydration‐effect boosted ‐rich facilitating electrosynthesis proposed. The introduction hydration‐effect‐promoting element aluminum into copper‐based forming CuAlO , which adjusts electron density distribution system, significantly promotes generation medium. Moreover, rapid charge transfer at CuO/CuAlO interface facilitates kinetics diffusion. More importantly, Al weakens overly strong adsorption intermediates CuO, thereby accelerating hydrogenation process suppressing HER. Thus, under conditions, reached Faradaic efficiency an yield as high 97.81 ± 1.94% 10.21 0.64 mg h −1 cm −2 −1.0 V versus RHE toward RR.

Language: Английский

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Dual-mode harvest solar energy for photothermal Cu2-xSe biomineralization and seawater desalination by biotic-abiotic hybrid

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: May 22, 2024

Abstract Biotic-abiotic hybrid photocatalytic system is an innovative strategy to capture solar energy. Diversifying energy conversion products and balancing photoelectron generation transduction are critical unravel the potential of photocatalysis. Here, we harvest in a dual mode for Cu 2-x Se nanoparticles biomineralization seawater desalination by integrating merits Shewanella oneidensis MR-1 biogenic nanoparticles. Photoelectrons generated extracellular 0 power synthesis through two pathways that either cross outer membrane activate periplasmic Cu(II) reduction or directly delivered into space Cu(I) evolution. Meanwhile, photoelectrons drive reversing MtrABC complexes S. . Moreover, unique photothermal feature as-prepared nanoparticles, natural hydrophilicity, linking properties bacterium offer convenient way tailor membranes water production. This study provides paradigm source sink diversifying biotic-abiotic platforms.

Language: Английский

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Growth of electroautotrophic microorganisms using hydrovoltaic energy through natural water evaporation

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: June 11, 2024

Abstract It has been previously shown that devices based on microbial biofilms can generate hydrovoltaic energy from water evaporation. However, the potential of as an source for growth remained unexplored. Here, we show electroautotrophic bacterium Rhodopseudomonas palustris directly utilize evaporation-induced electrons within through extracellular electron uptake, with a strong reliance carbon fixation coupled nitrate reduction. We obtained similar results two other bacterial species. Although conversion efficiency is low compared to processes such photosynthesis, hypothesize may potentially contribute survival and in energy-limited environments, given ubiquity evaporation conditions.

Language: Английский

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Electroactive properties of EABs in response to long-term exposure to polystyrene microplastics/nanoplastics and the underlying adaptive mechanisms

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 465, P. 133438 - 133438

Published: Jan. 5, 2024

Language: Английский

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Role of the cathode chamber in microbial electrosynthesis: A comprehensive review of key factors

Engineering Microbiology, Journal Year: 2024, Volume and Issue: 4(3), P. 100141 - 100141

Published: Feb. 17, 2024

The consumption of non-renewable fossil fuels has directly contributed to a dramatic rise in global carbon dioxide (CO2) emissions, posing an ongoing threat the ecological security Earth. Microbial electrosynthesis (MES) is innovative energy regeneration strategy that offers gentle and efficient approach converting CO2 into high-value products. cathode chamber vital component MES system its internal factors play crucial roles improving performance system. Therefore, this review aimed provide detailed analysis key related topics covered include inward extracellular electron transfer pathways, materials, applied potentials, catholyte pH, reactor configuration. In addition, analyzes discusses challenges promising avenues for conversion products via MES.

Language: Английский

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Review of cathodic electroactive bacteria: Species, properties, applications and electron transfer mechanisms

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 946, P. 174332 - 174332

Published: June 29, 2024

Language: Английский

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Biological Self-Assembled Transmembrane Electron Conduits for High-Efficiency Ammonia Production in Microbial Electrosynthesis

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(17), P. 7457 - 7468

Published: April 20, 2024

Usually, CymA is irreplaceable as the electron transport hub in

Language: Английский

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Bifunctional sludge-derived redox carbon dots with photoelectron storage and delivery properties for ammonia production by photosensitized Shewanella oneidensis MR-1

Bioresource Technology, Journal Year: 2024, Volume and Issue: unknown, P. 131539 - 131539

Published: Sept. 1, 2024

Language: Английский

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Engineering biotic-abiotic hybrid systems for solar-to-chemical conversion

Chem, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 1, 2024

Language: Английский

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Effect of Electrical Stimulation of the External Circuit of Membraneless Bioelectrochemical Systems on Imidacloprid Degradation and Representation of the mtrB and DyP-Type Peroxidases Genes

Microbiology, Journal Year: 2024, Volume and Issue: 93(4), P. 491 - 496

Published: July 26, 2024

Language: Английский

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