Poly(ionic liquids) derived N, S co-doped carbon nanorod from in situ and template-free method as an efficient metal-free bifunctional electrocatalysts for direct methanol fuel cells

Qu, Yongfang; Zhang, Wei; Guang, Binxiong; Xiao, Yahui; Liu, Xuejun; Zhai, Chao; Liu, Yong

doi:10.1016/j.jallcom.2022.165261

Cited by 18 publications

(4 citation statements)

References 55 publications

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“…3a) shows that the intensity ratio ( I D / I G ) of the D (1350 cm −1 ) and G bands (1580 cm −1 ) of Fe 3 C–Fe/NC-800 is 1.09, which is greater than that of HM-800 (0.94), indicating that Fe 3 C–Fe/NC-800 has an abundant defect structure. 45–48 The N 2 adsorption and desorption isotherm Fe 3 C–Fe/NC-800 in Fig. 3b exhibits a typical type IV feature.…”

Section: Resultsmentioning

confidence: 98%

Tri-functional Fe-based electrocatalyst with sturdy three-dimensional frame construction for the ORR, OER and HER

Liang,

Li,

Zhang

et al. 2024

J. Mater. Chem. A

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Section: Resultsmentioning

confidence: 98%

Tri-functional Fe-based electrocatalyst with sturdy three-dimensional frame construction for the ORR, OER and HER

Liang,

Li,

Zhang

et al. 2024

J. Mater. Chem. A

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“…Liu et al applied N and S co-doping of PIL as a precursor to synthesize N and S co-doped carbon nanorods by a facile template-free, one-step pyrolysis approach. 734 These carbon nanorod possessed hierarchical porous architectures of abundant micropores, which exhibited excellent electrocatalytic performance for the oxygen reduction reaction (ORR), such as high half-wave potentials of 0.857 and 0.852 V (vs RHE) in alkaline and acidic electrolytes, respectively. Many groups have exploited PILs as stabilizers for metal ions and surface modifiers to fabricate metal-loaded carbon materials.…”

Section: Pil Derivativesmentioning

confidence: 99%

“…Some heteroatom-doped carbon catalysts were obtained via a facial treatment of PIL-conjugated metal-free atoms. Liu et al applied N and S co-doping of PIL as a precursor to synthesize N and S co-doped carbon nanorods by a facile template-free, one-step pyrolysis approach . These carbon nanorod possessed hierarchical porous architectures of abundant micropores, which exhibited excellent electrocatalytic performance for the oxygen reduction reaction (ORR), such as high half-wave potentials of 0.857 and 0.852 V (vs RHE) in alkaline and acidic electrolytes, respectively.…”

Section: Applicationsmentioning

confidence: 99%

Polymerized and Colloidal Ionic Liquids─Syntheses and Applications

Li,

Yan,

Texter

2024

Chem. Rev.

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The breadth and importance of polymerized ionic liquids (PILs) are steadily expanding, and this review updates advances and trends in syntheses, properties, and applications over the past five to six years. We begin with an historical overview of the genesis and growth of the PIL field as a subset of materials science. The genesis of ionic liquids (ILs) over nano to meso lengthscales exhibiting 0D, 1D, 2D, and 3D topologies defines colloidal ionic liquids, CILs, which compose a subclass of PILs and provide a synthetic bridge between IL monomers (ILMs) and micro to macroscale PIL materials. The second focus of this review addresses design and syntheses of ILMs and their polymerization reactions to yield PILs and PIL-based materials. A burgeoning diversity of ILMs reflects increasing use of nonimidazolium nuclei and an expanding use of step-growth chemistries in synthesizing PIL materials. Radical chain polymerization remains a primary method of making PILs and reflects an increasing use of controlled polymerization methods.Step-growth chemistries used in creating some CILs utilize extensive cross-linking. This cross-linking is enabled by incorporating reactive functionalities in CILs and PILs, and some of these CILs and PILs may be viewed as exotic cross-linking agents. The third part of this update focuses upon some advances in key properties, including molecular weight, thermal properties, rheology, ion transport, self-healing, and stimuli-responsiveness. Glass transitions, critical solution temperatures, and liquidity are key thermal properties that tie to PIL rheology and viscoelasticity. These properties in turn modulate mechanical properties and ion transport, which are foundational in increasing applications of PILs. Cross-linking in gelation and ionogels and reversible step-growth chemistries are essential for self-healing PILs. Stimuli-responsiveness distinguishes PILs from many other classes of polymers, and it emphasizes the importance of segmentally controlling and tuning solvation in CILs and PILs. The fourth part of this review addresses development of applications, and the diverse scope of such applications supports the increasing importance of PILs in materials science. Adhesion applications are supported by ionogel properties, especially crosslinking and solvation tunable interactions with adjacent phases. Antimicrobial and antifouling applications are consequences of the cationic nature of PILs. Similarly, emulsion and dispersion applications rely on tunable solvation of functional groups and on how such groups interact with continuous phases and substrates. Catalysis is another significant application, and this is an historical tie between ILs and PILs. This component also provides a connection to diverse and porous carbon phases templated by PILs that are catalysts or serve as supports for catalysts. Devices, including sensors and actuators, also rely on solvation tuning and stimuliresponsiveness that include photo and electrochemical stimuli. We conclude our view of applications with 3D printi...

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“…Energy serves as the fundamental cornerstone of human progress and development . The continuous growth of the population is accompanied by an increase in energy demands. − Nevertheless, the dependence on conventional fossil fuels has led to escalating environmental pollution, encompassing global warming and rising sea levels due to increased carbon dioxide emissions. − Consequently, current research focuses on developing economical and effective technologies for innovative approaches to clean energy conversion and storage, such as water decomposition, metal-air batteries, hydrogen storage and fuel cells. − In metal-air batteries and proton exchange membrane fuel cells, oxygen reduction reaction (ORR), as an important chemical reaction, usually restricts their actual performance. , The ORR generally proceeds through a 4-electron (4e – ) pathway and displays sluggish kinetics, which results in high energy barriers for the reaction. ,− Therefore, it is imperative to advance the development of exceptional electrocatalysts to accelerate the electrochemical ORR kinetics. − Presently, the common commercial catalysts predominantly composed of Pt demonstrate high catalytic performance. , However, the substantial cost of Pt-based catalysts makes them unsuitable to meet future market demands. − Hence, there is an urgent need to explore nonplatinum group (NPG) catalysts with efficient and high performances to reduce the independence of expensive Pt-based materials. − …”

Section: Introductionmentioning

confidence: 99%

Recent Progress and Prospects of Manganese–Nitrogen–Carbon Electrocatalysts for Oxygen Reduction Reaction

Wang,

Yan,

Deng

et al. 2024

Energy Fuels

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The oxygen reduction reaction (ORR) holds significant importance in the electrochemical processes of energy conversion systems. The kinetics of the ORR are sluggish as it is involved in multistep reactions. It is imperative to investigate ORR electrocatalysts with outstanding performance and durability accelerating their kinetics. Manganese−nitrogen−carbon (Mn−N−C) materials offer significant advantages including efficient atom utilization and easily tunable coordination structures, rendering them promising candidates for enhancing ORR catalytic activity. The mini-review provides a concise overview of the fundamental principles underlying the ORR. Then, three strategies for regulating the coordination structure are summarized to improve the ORR catalytic activity of Mn−N−C catalysts: adjusting the coordination number of N atoms around Mn atoms, doping nonmetal atoms, and doping metal atoms. Finally, this mini-review outlines the challenges and prospects associated with the Mn− N−C catalyst for ORR. This mini-review is anticipated to deepen the comprehension of ORR electrocatalysts for readers by presenting targeted optimization methods to regulate the configuration of Mn−N−C catalysts.

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Poly(ionic liquids) derived N, S co-doped carbon nanorod from in situ and template-free method as an efficient metal-free bifunctional electrocatalysts for direct methanol fuel cells

Cited by 18 publications

References 55 publications

Tri-functional Fe-based electrocatalyst with sturdy three-dimensional frame construction for the ORR, OER and HER

Tri-functional Fe-based electrocatalyst with sturdy three-dimensional frame construction for the ORR, OER and HER

Polymerized and Colloidal Ionic Liquids─Syntheses and Applications

Recent Progress and Prospects of Manganese–Nitrogen–Carbon Electrocatalysts for Oxygen Reduction Reaction

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