Tailored Self-Supported Co,Ni/MnO2 Nanorods@Hierarchical Carbon Spheres Chains as Advanced Electrocatalysts for Rechargeable Zn-Air battery and Self-Driven Water Splitting DOI Creative Commons
Xiaoying Zheng, Alonso Moreno Zuria, Mohamed Mohamedi

et al.

ACS electrochemistry., Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 5, 2024

Designing multifunctional electrocatalysts that combine high efficiency, durability, and affordability for energy storage represents a significant challenge. Here, we introduce novel trifunctional electrocatalyst synthesized by doping self-supported surface electrochemically functionalized carbon sphere chains/MnO2 nanorods with Co or Ni (Func CSCs-2M/Co0.25 (or Ni0.25) MnOx). These demonstrate exceptional electroactivity the oxygen evolution reaction, reduction hydrogen along durability comparable to of commercial Pt/C IrO2 catalysts. Two Zn-air batteries (ZABs) equipped Func CSCs-2M/Co0.25MnOx cathodes, connected in series, have capability power 39 red light-emitting diodes continuously an impressive duration 200 h. Moreover, self-sustaining water splitting system, powered ZABs, is showcased, utilizing as exclusive catalyst. This system sustains consistent voltage up 20 h under applied current density reaching 30 mA cm–2. performance rivals noble catalyst systems, showcasing its competitive edge. The study emphasizes cost-effectiveness materials utilization low-carbon, renewable rechargeable ZAB combined electrolysis. Such integration has potential make substantial impact addressing long-term environmental challenges, easing pressure on these critical fronts.

Language: Английский

Recent achievements in noble metal-based oxide electrocatalysts for water splitting DOI
Feng Wang,

Linfeng Xiao,

Y.‐B. Jiang

et al.

Materials Horizons, Journal Year: 2025, Volume and Issue: 12(6), P. 1757 - 1795

Published: Jan. 1, 2025

Noble metal-based oxide electrocatalysts are essential for the development of H 2 production technology by water electrolysis, and this review summarises recent research progress noble metal oxides in field electrolysis.

Language: Английский

Citations

1
Performance Optimization by Antioxidant Strategies for Proton Exchange Membrane Fuel Cells: Recent Progress and Future DOI
Xianghui Yu, Shuxing Bai,

Qinzhu Li

et al.

EnergyChem, Journal Year: 2024, Volume and Issue: unknown, P. 100142 - 100142

Published: Dec. 1, 2024

Language: Английский

Citations

5
TiN Boosting the Oxygen Reduction Performance of Fe–N–C through the Relay-Catalyzing Mechanism for Metal–Air Batteries DOI
Yi Luo, Qichen Wang, Teng Chen

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 22, 2025

Metal–air batteries desire highly active, durable, and low-cost oxygen reduction catalysts to replace expensive platinum (Pt). The Fe–N–C catalyst is recognized as the most promising candidate for Pt; however, its durability hindered by carbon corrosion, while activity restricted due limited reaction. Herein, TiN creatively designed be hybridized with (TiN/Fe–N–C) relieve corrosion absorb more when catalyzing reduction. half-wave potential of TiN/Fe–N–C 0.915 V vs reverse hydrogen electrode 15 mV lost after 30,000 cycles accelerated test, higher than 0.893 26 Pt/C. solid zinc–air battery achieves a peak power density 238 mW/cm2, 2100 cycle stability at 30 °C, long-term 1100 h under −20 superior 150 mW/cm2 500 (−20 °C) Both calculations experiments indicate that has dual functions which not only relay abundant reaction but also strengthen adsorption force intermediates reaction, thus, enhancing Fe–N–C. Therefore, proposed catalytic strategy offers an efficient energy conversion devices.

Language: Английский

Citations

0
Functional additives for proton exchange membrane fuel cells DOI
Weihao Liu, Dandan Liu, Xin Wan

et al.

EnergyChem, Journal Year: 2025, Volume and Issue: unknown, P. 100144 - 100144

Published: Jan. 1, 2025

Language: Английский

Citations

0
In-Situ Synthesis of Co-Tin Heterostructure Composite for Efficient Oxygen Reduction Reaction DOI
Jiannan Cai,

Fanglin Hu,

Qingshan Zhu

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Preparation and structure activity relationship of Cp 2 -Fe-PBI catalyst for fuel cells DOI

Chenchen Bao,

Xidong Hui,

Zhaonan Sun

et al.

Fullerenes Nanotubes and Carbon Nanostructures, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 8

Published: May 4, 2025

Language: Английский

Citations

0
Tailoring Oxygen Reduction Reaction on M–N–C Catalysts via Axial Coordination Engineering DOI
Dandan Liu, Xin Wan, Jianglan Shui

et al.

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

Published: Sept. 23, 2024

Abstract The development of fuel cells and metal‐air batteries is an important link in realizing a sustainable energy supply green environment for the future. Oxygen reduction reaction (ORR) core such conversion devices. M–N–C catalysts exhibit encouraging ORR catalytic activity are most promising candidates replacing Pt/C. electrocatalytic performance intimately related to specific metal species coordination central atom. Axial engineering presents avenue highly active has seen considerable progress over past decade. Nevertheless, accurate control electronic structure at atomic scale poses big challenge. Herein, diverse axial ligands, characterization techniques, modulation mechanisms encompassed discussed. Furthermore, some pressing matters be solved challenges that deserve explored investigated future proposed.

Language: Английский

Citations

3
The Synthesis, Characteristics, and Application of Hierarchical Porous Materials in Carbon Dioxide Reduction Reactions DOI Open Access
Zhongwei Guan,

Yi-Da Wang,

Zhao Wang

et al.

Catalysts, Journal Year: 2024, Volume and Issue: 14(12), P. 936 - 936

Published: Dec. 18, 2024

The reduction of carbon dioxide to valuable chemical products could favor the establishment a sustainable cycle, which has attracted much attention in recent years. Developing efficient catalysts plays vital role reaction (CO2RR) process, but with great challenges achieving uniform distribution catalytic active sites and rapid mass transfer properties. Hierarchical porous materials hierarchy show promise for application CO2RRs owing high specific surface area superior connection. Plenty breakthroughs CO2RR studies have been recently achieved regarding hierarchical materials, indicating that summary reactions is highly desired significant. In this paper, we summarize CO2RRs, including classical synthesis methods, advanced characterization technologies, novel strategies. Moreover, by highlighting several significant works, advantages are analyzed revealed. Additionally, perspective on (e.g., challenges, potential catalysts, promising strategies, etc.) future study also presented. It can be anticipated comprehensive review will provide insights further developing alternative CO2 reactions.

Language: Английский

Citations

1
Advanced approach for active and durable proton exchange membrane fuel cells: Coupling synergistic effects of MNC nanocomposites DOI Creative Commons

Yeju Jang,

Seung Yeop Yi,

Jinwoo Lee

et al.

EcoMat, Journal Year: 2024, Volume and Issue: 6(10)

Published: Oct. 1, 2024

Abstract Atomically dispersed metal and nitrogen co‐doped carbon (MNC) is a promising oxygen reduction reaction (ORR) catalyst for electrochemical energy storage conversion applications but typically suffers from low durability activity under the acidic conditions of practical polymer electrolyte exchange membrane fuel cells (PEMFCs). Recently, performance MNC nanocomposites ORR has been enhanced by exploiting synergistic coupling effects their constituents (single‐atom sites, nanoclusters, nanoparticles). The unique geometric structures formed diverse sites in these provide optimal electronic efficient pathways, thus resulting high long‐term durability. This work provides an overview as electrocatalysts PEMFC conditions, focusing on enhancement methods highlighting strategies used to prepare electrocatalytically containing no or amounts platinum group metals. Progress development advanced catalysts discussed, pivotal role within explored together with characterization elucidate effects. Finally, challenges prospects developing next‐generation are presented. image

Language: Английский

Citations

0
Tailored Self-Supported Co,Ni/MnO2 Nanorods@Hierarchical Carbon Spheres Chains as Advanced Electrocatalysts for Rechargeable Zn-Air battery and Self-Driven Water Splitting DOI Creative Commons
Xiaoying Zheng, Alonso Moreno Zuria, Mohamed Mohamedi

et al.

ACS electrochemistry., Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 5, 2024

Designing multifunctional electrocatalysts that combine high efficiency, durability, and affordability for energy storage represents a significant challenge. Here, we introduce novel trifunctional electrocatalyst synthesized by doping self-supported surface electrochemically functionalized carbon sphere chains/MnO2 nanorods with Co or Ni (Func CSCs-2M/Co0.25 (or Ni0.25) MnOx). These demonstrate exceptional electroactivity the oxygen evolution reaction, reduction hydrogen along durability comparable to of commercial Pt/C IrO2 catalysts. Two Zn-air batteries (ZABs) equipped Func CSCs-2M/Co0.25MnOx cathodes, connected in series, have capability power 39 red light-emitting diodes continuously an impressive duration 200 h. Moreover, self-sustaining water splitting system, powered ZABs, is showcased, utilizing as exclusive catalyst. This system sustains consistent voltage up 20 h under applied current density reaching 30 mA cm–2. performance rivals noble catalyst systems, showcasing its competitive edge. The study emphasizes cost-effectiveness materials utilization low-carbon, renewable rechargeable ZAB combined electrolysis. Such integration has potential make substantial impact addressing long-term environmental challenges, easing pressure on these critical fronts.

Language: Английский

Citations

0