Bipolar conjugated microporous polymer anchoring graphene hybrids for high-performance zinc–organic batteries

Hu, Chengmin; Chen, Yumin; Song, Ziyang; Miao, Ling; Duan, Hui; Lv, Yaokang; Xie, Li; Liu, Mingxian; Gan, Lihua

doi:10.1039/d4ta01952k

Cited by 16 publications

(2 citation statements)

References 48 publications

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“…In previous reports, it has been demonstrated that carbon coating strategies can improve gas adsorption capacity and modulate the accessibility of electrocatalysts to protons, 113 thereby reducing HER competition and increasing NRR activity. The preparation of CoP particles confined in situ in carbon nanotubes (CoP/CNT) (structure as in Figure 5c) to be used as NRR catalyst was first reported by Meng et al 83 The oxygen inclusion during the synthesis led to the oxygenrich copper cluster products (O-CoP/CNT), and it anchored the clusters firmly to the carbon nanotubes and stabilized the intermediates from NRR, through additional hydrogen bonding interaction, to enhance the NRR activity.…”

Section: Cobalt Phosphidementioning

confidence: 99%

Recent Progress and Outlook on Metal Phosphides for Nitrogen Gas Electrocatalytic Ammonia Synthesis

Sun,

Xing,

Song

et al. 2024

Energy Fuels

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Ammonia (NH 3 ) is a significant chemical and carbon-free energy carrier with important applications in industry and agriculture. Ammonia is primarily produced through the Haber−Bosch process (HB), which necessitates high temperatures and pressures, consumes a significant amount of energy, and produces a substantial amount of CO 2 . Electrocatalytic nitrogen reduction (NRR) for ammonia synthesis is a promising alternative to the HB process due to its mild reaction conditions and low energy consumption. However, the low ammonia yields reported for nonmetallic or metallic NRR catalysts are still far from the industrialization needs. In recent years, researchers have discovered that metal phosphides possess easy-to-regulate morphology, good stability, and synergistic properties that enable them to exhibit good electrocatalytic activity for the nitrogen reduction reaction. This emerging research direction has been identified as a promising approach for the development of high-performance NRR electrocatalysts. This article provides an overview of the advancements in the use of metal phosphides for electrocatalytic nitrogen reduction and ammonia synthesis in recent years. It briefly discusses their synthesis methods, structural modulation, and morphology modifications as well as the reaction mechanism and performance in nitrogen reduction reactions. Additionally, it addresses the potential challenges that metal phosphides may encounter in NRR applications and offers insights into future development prospects. This paper aims to propose innovative ideas for designing metal phosphide electrocatalysts to enhance the efficiency of electrocatalytic nitrogen reduction to produce ammonia.

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Section: Cobalt Phosphidementioning

confidence: 99%

Recent Progress and Outlook on Metal Phosphides for Nitrogen Gas Electrocatalytic Ammonia Synthesis

Sun,

Xing,

Song

et al. 2024

Energy Fuels

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“…With the intensification of environmental pollution and the energy crisis, the development of sustainable energy storage systems has become a priority in energy conversion. − Recognized for high energy density and long cycle stability (250–400 Wh kg –1 ), lithium-ion batteries (LIBs) have played a crucial role in portable electronics and electric vehicles. − However, the scarcity of lithium resources and flammability of organic electrolytes hinder the specific applications of LIBs. − Therefore, it is significant to explore advanced energy storage systems to replace LIBs. Aqueous zinc-ion batteries (ZIBs), including a stable Zn metal anode, an electrolyte with high Zn 2+ ions transmission, and structurally adjustable cathode materials, have emerged as potent contenders for the forthcoming advanced energy storage system. − …”

Section: Introductionmentioning

confidence: 99%

Electrolyte Additive Strategies for Safe and High-Performance Aqueous Zinc-Ion Batteries: A Mini-Review

Zhang,

Miao,

Song

et al. 2024

Energy Fuels

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With outstanding safety and economic benefits, aqueous zinc-ion batteries (ZIBs) represent a highly promising energy system. As the "blood" of ZIBs, the solid (electrode)/liquid (electrolyte) interface reactions and the transport rate of zinc ions in the electrolyte are crucial fields for long-term ZIBs. However, parasitic reactions and dendrite growth at the electrode/electrolyte interface hinder the practical application of ZIBs. Thus, adjusting the composition of the electrolyte is valuable to reduce active-H 2 O molecules in the solvation structure and realize a textured zinc anode. In this mini-review, the electrochemical reaction dilemmas in electrode/electrolyte interfaces and the modification mechanism of additives are first summarized. Furthermore, we compare the charge transfer and storage methods among various electrolyte additives. Notably, the effects of plating/stripping textures ((100), ( 101) and (002) crystal planes) on the reversibility of zinc metal anodes are highlighted, providing a more intuitive strategy for the epitaxial growth of zinc metal. Finally, the specific applications and perspectives of ZIBs with additives are outlined to guide nextgeneration efficient energy storage.

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Duodecuple H‐Bonded NH₄⁺ Storage in Multi‐Redox‐Site N‐Heterocyclic Cathode for Six‐Electron Zinc–Organic Batteries

Zhang,

Song,

Miao

et al. 2024

Adv Funct Materials

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Designing multiple redox sites in electroactive organic cathodes that allow more electron transfer is a permanent target for energy storage. Here, six‐electron zinc–organic batteries are reported accessed by duodecuple H‐bonded NH4+ storage in N‐heterocyclic dipyrazino[2,3‐f:2′,3′‐h]quinoxaline‐2,3,6,7,10,11‐hexacarbonitrile (DQH) cathode. DQH features an extended π‐conjugated aromatic planarity enriched with super electron delocalization routes and dodecahedral‐active imine/cyano motifs, achieving a high capacity up to 385 mAh g−1 at 0.5 A g−1. Besides, DQH cathode redox‐exclusively couples with small‐hydration‐size and low‐desolvation‐energy‐barrier NH4+ ions (0.33 nm and 0.19 eV vs 0.86 nm and 0.36 eV of Zn2+) via flexible H‐bonding interactions. NH4+ topo‐coordination enables DQH anti‐dissolution in aqueous electrolytes to avoid common capacity decay of small organic molecules, and solves the instability and low interfacial reaction kinetics issues caused by rigidly and sluggishly repeated insertion of Zn2+ ions. This gives zinc–organic battery high‐rate ability (30 A g−1) and high lifespan (30 000 cycles at 10 A g−1).

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Bipolar conjugated microporous polymer anchoring graphene hybrids for high-performance zinc–organic batteries

Abstract: Redox organic polymers have emerged as cathode candidates for zinc−organic batteries (ZOBs) due to their high electrochemical activity, environmental friendliness and structural designability. However, most organic polymers are confined to...

Cited by 16 publications

References 48 publications

Recent Progress and Outlook on Metal Phosphides for Nitrogen Gas Electrocatalytic Ammonia Synthesis

Recent Progress and Outlook on Metal Phosphides for Nitrogen Gas Electrocatalytic Ammonia Synthesis

Electrolyte Additive Strategies for Safe and High-Performance Aqueous Zinc-Ion Batteries: A Mini-Review

Duodecuple H‐Bonded NH₄⁺ Storage in Multi‐Redox‐Site N‐Heterocyclic Cathode for Six‐Electron Zinc–Organic Batteries

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Bipolar conjugated microporous polymer anchoring graphene hybrids for high-performance zinc–organic batteries

Abstract: Redox organic polymers have emerged as cathode candidates for zinc−organic batteries (ZOBs) due to their high electrochemical activity, environmental friendliness and structural designability. However, most organic polymers are confined to...

Cited by 16 publications

References 48 publications

Recent Progress and Outlook on Metal Phosphides for Nitrogen Gas Electrocatalytic Ammonia Synthesis

Recent Progress and Outlook on Metal Phosphides for Nitrogen Gas Electrocatalytic Ammonia Synthesis

Electrolyte Additive Strategies for Safe and High-Performance Aqueous Zinc-Ion Batteries: A Mini-Review

Duodecuple H‐Bonded NH4+ Storage in Multi‐Redox‐Site N‐Heterocyclic Cathode for Six‐Electron Zinc–Organic Batteries

Contact Info

Product

Resources

About

Duodecuple H‐Bonded NH₄⁺ Storage in Multi‐Redox‐Site N‐Heterocyclic Cathode for Six‐Electron Zinc–Organic Batteries