Realization of Hydrogel Electrolytes with High Thermoelectric Properties: Utilization of the Hofmeister Effect DOI
Shuanglin Jia,

Wanyu Qian,

Penglu Yu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 5, 2024

Ionic thermoelectric materials, renowned for their high Seebeck coefficients, are gaining prominence potential in harvesting low-grade waste heat. However, the theoretical underpinnings enhancing performance of these materials remain underexplored. In this study, Hoffmeister effect was leveraged to augment properties hydrogel-based ionic materials. A series PAAm-x Zn(CF3SO3)2, ZnSO4, and Zn(ClO4)2 hydrogels were synthesized, using polyacrylamide (PAAm) as matrix three distinct zinc salts with varying anion volumes impart effect. Exceptionally, most cost-effective ZnSO4 yielded highest coefficient among hydrogels, PAAm-1 achieving a remarkable value −3.72 mV K–1. To elucidate underlying mechanism, we conducted an innovative analysis correlating ion transfer number. Additionally, hydrogel demonstrated outstanding mechanical properties, including elongation at break (>1400% its peak), exceptional resilience (virtually no hysteresis loops), robust fatigue resistance (overlapping cyclic tensile curves). This work not only advances understanding but also showcases practical heat recovery applications.

Language: Английский

Hydroxyl combined with nitrogen on biomass carbon promotes the electrocatalytic H\(_{2}\)O\(_{2}\) selectivity DOI Creative Commons

Jiabi Jiang,

Danni Deng,

Yuchao Wang

et al.

Journal of Metals Materials and Minerals, Journal Year: 2025, Volume and Issue: 35(1), P. e2216 - e2216

Published: Feb. 22, 2025

Elevating the selectivity of two-electron oxygen reduction reaction (2e‒ ORR) is challenging. Herein, hydroxyl combined with nitrogen on biomass carbon exhibits a high H2O2 over wide potential range 0 V to 0.5 vs. RHE, which nearly 97% at 0.3 RHE. The combination and improves adsorption desorption intermediates, finally changing pathway promoting 2e‒ ORR. Faradaic efficiency (FE) reaches 98% Furthermore, typical organic pollutants were degraded site in flow cell. This work illustrates

Language: Английский

Citations

0
Regulating Interfacial Wettability for Fast Mass Transfer in Rechargeable Metal-Based Batteries DOI
Ruijuan Shi, Shilong Jiao, Zhao Yang

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 26, 2025

The interfacial wettability between electrodes and electrolytes could ensure sufficient physical contact fast mass transfer at the gas-solid-liquid, solid-liquid, solid-solid interfaces, which improve reaction kinetics cycle stability of rechargeable metal-based batteries (RMBs). Herein, engineering multiphase interfaces is summarized from electrolyte electrode aspects to promote interface rate durability RMBs, illustrates revolution that taking place in this field thus provides inspiration for future developments RMBs. Specifically, review presents principle macro- microscale summarizes emerging applications concerning effect on Moreover, deep insight into development provided outlook. Therefore, not only insights but also offers strategic guidance modification optimization toward stable electrode-electrolyte

Language: Английский

Citations

0
Constructing dual-ionic channels to enhance the cycle stability of solid-state zinc-air batteries DOI
Yan Zhao, Xianwei Li, Hui Zhang

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 115, P. 115987 - 115987

Published: Feb. 28, 2025

Language: Английский

Citations

0
Molecularly engineered hyaluronic acid-derived hygroscopic hydrogel electrolytes with anti-freezing and moisturizing capabilities realizing environmental adaptive semi-open flexible zinc-air batteries DOI
Yuanyuan Chen, Dan Rong, Sijing He

et al.

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 640, P. 236804 - 236804

Published: March 18, 2025

Language: Английский

Citations

0
A reusable biomass electrolyte with dual-interface regulation towards flexible and durable zinc-iodine batteries DOI
Tingting Su, Wenfeng Ren,

Mi Xu

et al.

Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104279 - 104279

Published: April 1, 2025

Language: Английский

Citations

0
Recent Advances in Rechargeable Zn-Air Batteries DOI Creative Commons
Hui Zhao

Molecules, Journal Year: 2024, Volume and Issue: 29(22), P. 5313 - 5313

Published: Nov. 11, 2024

Rechargeable Zn-air batteries are considered to be an effective energy storage device due their high density, environmental friendliness, and long operating life. Further progress on rechargeable with density/power density is greatly needed satisfy the increasing conversion demands. This review summarizes strategies proposed so far pursue high-efficiency batteries, including aspects of electrocatalysts (from noble metals non-noble metals), electrode chemistry oxygen evolution reaction organic oxidation reaction), engineering powdery free-standing), aqueous electrolytes alkaline non-alkaline) battery configuration liquid flexible). An essential evaluation electrochemistry highlighted solve challenges in boosting efficiency metal-air batteries. In end, perspective current future research directions promote industrial application provided.

Language: Английский

Citations

1
Realization of Hydrogel Electrolytes with High Thermoelectric Properties: Utilization of the Hofmeister Effect DOI
Shuanglin Jia,

Wanyu Qian,

Penglu Yu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 5, 2024

Ionic thermoelectric materials, renowned for their high Seebeck coefficients, are gaining prominence potential in harvesting low-grade waste heat. However, the theoretical underpinnings enhancing performance of these materials remain underexplored. In this study, Hoffmeister effect was leveraged to augment properties hydrogel-based ionic materials. A series PAAm-x Zn(CF3SO3)2, ZnSO4, and Zn(ClO4)2 hydrogels were synthesized, using polyacrylamide (PAAm) as matrix three distinct zinc salts with varying anion volumes impart effect. Exceptionally, most cost-effective ZnSO4 yielded highest coefficient among hydrogels, PAAm-1 achieving a remarkable value −3.72 mV K–1. To elucidate underlying mechanism, we conducted an innovative analysis correlating ion transfer number. Additionally, hydrogel demonstrated outstanding mechanical properties, including elongation at break (>1400% its peak), exceptional resilience (virtually no hysteresis loops), robust fatigue resistance (overlapping cyclic tensile curves). This work not only advances understanding but also showcases practical heat recovery applications.

Language: Английский

Citations

0