Pudding-typed cobalt sulfides/nitrogen and sulfur dual-doped hollow carbon spheres as a highly efficient and stable oxygen reduction electrocatalyst

Xiao, Junwu; Zhao, Chen; Hu, Chencheng; Xi, Jiangbo; Wang, Shuai

doi:10.1016/j.jpowsour.2017.03.011

Cited by 63 publications

(28 citation statements)

References 51 publications

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“…In addition, the metal species inevitably agglomerated during calcination which resulted in the lessening of active sites density. Although it is challenging to control the morphology of MOF during pyrolysis, we could still harness the loss control of the crystal morphology by utilizing MOF as self‐sacrificial template. Due to the lower decomposition temperature of Fe‐MIL compared with PANI, hollow carbon tubes can be constructed by applying the decomposition of Fe‐MIL to form hollow pores.…”

Section: Introductionsupporting

confidence: 79%

Self‐Sacrificial Template Synthesis of a Nitrogen‐Doped Microstructured Carbon Tube as Electrocatalyst for Oxygen Reduction

Zeng

Tang

et al. 2018

ChemElectroChem

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The development of low‐cost, efficient and stable electrocatalysts for the oxygen reduction reaction (ORR) is desirable but remains a great challenge. We report a self‐sacrificial template synthesis approach for nitrogen‐doped hollow carbon microtubes as electrocatalyst for ORR. Typically, Fe‐MIL (Materiaux de l'Institute Lavosier) nanocrystals cast as self‐sacrificial template. Polyaniline (PANI) was in situ‐synthesized and deposited on the surface of Fe‐MIL nanocrystals. By a two‐step pyrolysis of the MIL‐101 (Fe)@PANI hybrids, unique microstructured carbon tubes with Fe3O4 nanoparticles encapsulated inside the wall were fabricated after the self‐sacrificial template decomposed. The optimized C‐PANI‐MIL‐2 catalyst exhibits a high onset potential of 1.0 V in alkaline media. Out of the negative effect of the disruption of metal‐organic frameworks (MOF) morphology, the ingenious catalytic activities may be ascribed to the well‐defined microtube architecture with a high accessible surface area, the existence of FeN2+2/FeN4 and rich active nitrogen atoms. Moreover, C‐PANI‐MIL‐2 exhibited excellent methanol tolerance and durability compared to a commercial Pt/C catalyst in both electrolytes. This work may provide a new strategy for the design and preparation of microstructured non‐precious metal based catalysts supported on hollow carbon tubes for fuel cells.

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Section: Introductionsupporting

confidence: 79%

Self‐Sacrificial Template Synthesis of a Nitrogen‐Doped Microstructured Carbon Tube as Electrocatalyst for Oxygen Reduction

Zeng

Tang

et al. 2018

ChemElectroChem

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“…1050 (NH 3 ) 0.1 M HClO 4 (1) 0.91 V vs. RHE 0.778 V vs. RHE 668.8 mW cm −2 [31] CoCO-Pz Co-pyrazinedicarboxylate 700 0.5 M H 2 SO 4 (0) b 0.97 V vs. RHE 0.72 V vs. RHE 60 mW cm −2 [32] ZIF-67 Co-mIm 700 0.1 M KOH (13) b 0.97 V vs. RHE 0.87 V vs. RHE – [33] ZIF-67/ZIF-8 Co-mIm/Zn-mIm 900 0.1 M KOH (13) 0.982 V vs. RHE 0.881 V vs. RHE – [34] ZIF-67/ZIF-8 Co-mIm/Zn-mIm 850 0.1 M KOH (13) 0.992 V vs. RHE 0.91 V vs. RHE – [35] ZIF-67 Co-mIm 1.800 (H 2 ) 2. 250 (O 2 ) 0.1 M KOH (13) – 0.83 V vs. RHE – [36] ZIF-67 Co-mIm 900 0.1 M KOH (13) 0.94 V vs. RHE 0.8 V vs. RHE – [37] S-ZIF-67 Co-mIm-S 700 0.1 M KOH (13) 0.97 V vs. RHE 0.9 V vs. RHE – [38] S-ZIF-67 Co-mIm-S 700 0.1 M HClO 4 (1) 0.9 V vs. RHE 0.78 V vs. RHE – [39] S-ZIF-67 Co-mIm-S 700 0.1 M KOH (13) …”

Section: Datamentioning

confidence: 99%

Comparison of new metal organic framework-based catalysts for oxygen reduction reaction

Gonen

Elbaz

2018

Data in Brief

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In this article, we collected the most significant and recent data in brief in the field of metal organic frameworks oxygen reduction reaction catalysts, obtained from some of the most recent research papers in the field. We present lists of materials and their key parameters that are relevant to the cathode catalysts in polymer electrolyte membrane fuel cells. All the materials listed in this paper are composed of metal organic frameworks, zeolitic imidazolate frameworks, or their derivatives. These are divided into two main groups: pristine MOFs and MOF-derived materials. The data in this article is a summary of more extensive review (Gonen and Elbaz, 2018) [1].

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“…[86b] Recently,M OFs have frequently been utilized to fabricate composites in whicht he TM componentsa re covered by at hree-dimensional N-C matrix. [79,108,122,158] The controllable morphology of the MOFs can be mostly maintaineda fter ap yrolysis process, and consequently,t he desired morphology of the materials can be designed and controlled before heat treatment. Therefore, methods depending on MOFs can be considered efficient synthesis strategies for the preparation of electrocatalysts in which the TM components are covered in the N-C substrates.…”

Section: Encapsulatingmentioning

confidence: 99%

Stable and Efficient Nitrogen‐Containing Carbon‐Based Electrocatalysts for Reactions in Energy‐Conversion Systems

et al. 2018

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High activity and stability are crucial for the practical use of electrocatalysts in fuel cells, metal-air batteries, and water electrolysis, including the oxygen reduction reaction, hydrogen evolution reaction, oxygen evolution reaction, and oxidation reactions of formic acid and alcohols. Electrocatalysts based on nitrogen-containing carbon (N-C) materials show promise in catalyzing these reactions; however, there is no systematic review of strategies for the engineering of active and stable N-C-based electrocatalysts. Herein, a comprehensive comparison of recently reported N-C-based electrocatalysts regarding both electrocatalytic activity and long-term stability is presented. In the first part of this review, the relationships between the electrocatalytic reactions and selection of the element to modify the N-C-based materials are discussed. Afterwards, synthesis methods for N-C-based electrocatalysts are summarized, and strategies for the synthesis of highly stable N-C-based electrocatalysts are presented. Multiple tables containing data on crucial parameters for both electrocatalytic activity and stability are displayed in this review. Finally, constructing M-N moieties is proposed as the most promising engineering strategy for stable N-C-based electrocatalysts.

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Pudding-typed cobalt sulfides/nitrogen and sulfur dual-doped hollow carbon spheres as a highly efficient and stable oxygen reduction electrocatalyst

Cited by 63 publications

References 51 publications

Self‐Sacrificial Template Synthesis of a Nitrogen‐Doped Microstructured Carbon Tube as Electrocatalyst for Oxygen Reduction

Self‐Sacrificial Template Synthesis of a Nitrogen‐Doped Microstructured Carbon Tube as Electrocatalyst for Oxygen Reduction

Comparison of new metal organic framework-based catalysts for oxygen reduction reaction

Stable and Efficient Nitrogen‐Containing Carbon‐Based Electrocatalysts for Reactions in Energy‐Conversion Systems

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