Effects of Ionic Interferents on Electrocatalytic Nitrate Reduction: Mechanistic Insight

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(29), P. 12823 - 12845

Published: July 2, 2024

Nitrate, a prevalent water pollutant, poses substantial public health concerns and environmental risks. Electrochemical reduction of nitrate (eNO

Language: Английский

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Evaluating Bicarbonate Electrolyzer Configurations for Energy‐Efficient Formate Production

Advanced Sustainable Systems, Journal Year: 2025, Volume and Issue: unknown

Published: April 26, 2025

Abstract Reactive carbon capture (RCC) by direct conversion of CO 2 solutions has emerged as a promising alternative to gas‐fed electrolyzers. Leveraging bicarbonate electrolyzers (BEs), RCC eliminates energy‐intensive steps such regeneration and pressurization. Additionally, BEs prevent failures like carbonate salt deposition common in systems. However, intrinsic challenges BEs, higher cell voltages lower faradaic efficiencies (FEs), result greater energy consumption during electrolysis compared To evaluate whether an chain (RCCC) is more energy‐efficient for formate production than (GFCC), the study optimizes BE configuration compares it valorization requiring pure, pressurized stream This shows most efficient setup employs cation exchange membrane paired with buffer layer, achieving FE ≈75% at current density 100 mA cm⁻ potential 3.1 V. Using this optimized BE, RCCC demonstrates energetic advantage over GFCCs scenarios without recycling. Even 100% utilization enabled recycling systems, remains competitive. With improvements performance, emerges strategy converting into efficiently.

Language: Английский

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Tailoring high-performance bipolar membrane for durable pure water electrolysis

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

Published: Nov. 25, 2024

Bipolar membrane electrolyzers present an attractive scenario for concurrently optimizing the pH environment required paired electrode reactions. However, practicalization of bipolar membranes water electrolysis has been hindered by their sluggish dissociation kinetics, poor mass transport, and insufficient interface durability. This study starts with numerical simulations discloses limiting factors monopolar layer engineering. On this foundation, we tailor flexible (10 ∼ 40 µm) comprising anion cation exchange layers identical poly(terphenyl alkylene) polymeric skeleton. Rapid transfer properties high compatibility endow appreciable efficiency long-term stability. Incorporating into a flow-cell electrolyzer enables ampere-level pure total voltage 2.68 V at 1000 mA cm

Language: Английский

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High-Voltage pH-Decoupling Aqueous Redox Flow Batteries for Future Energy Storage

Current Opinion in Electrochemistry, Journal Year: 2024, Volume and Issue: unknown, P. 101633 - 101633

Published: Dec. 1, 2024

Language: Английский

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