Hierarchical porous N-P-coupled carbons as metal-free bifunctional electro-catalysts for oxygen conversion

Zhou, Ziqian; Chen, A.; Fan, Xiaohong; Kong, Aiguo; Shan, Yongkui

doi:10.1016/j.apsusc.2018.09.095

Cited by 51 publications

(24 citation statements)

References 53 publications

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“…Even so, we summarize the best performance for various reactions catalyzed by different heteroatoms‐doped carbons in Figure for easy comparison. [ 118–158 ] As can be seen, N‐doped carbon catalysts show better catalytic performance over other heteroatom‐doped carbons for ORR and water splitting. For non‐N‐doping, only B‐doping has been reported for ORR, P‐doping for OER, and F‐doping for HER to show catalytic performance comparable to the N‐doping.…”

Section: Conclusion and Outlooksmentioning

confidence: 98%

Non‐N‐Doped Carbons as Metal‐Free Electrocatalysts

Wang

Liu

Dai

2020

Advanced Sustainable Systems

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Ten years have passed since the discovery of the first nitrogen‐doped carbon‐based metal‐free catalyst for the oxygen reduction reaction, which opened a new field of catalysis toward a large variety of important applications, ranging from energy conversion and storage to environmental remediation. Various heteroatom‐doped carbons, beyond nitrogen‐doping (N‐doping), with distinctive features have also been developed for many specific reactions of practical significance (e.g., oxygen reduction (ORR), water splitting (OER and HER), CO2 reduction (CO2RR), and N2 reduction (NRR)). However, the topic of metal‐free non‐N‐doped carbon electrocatalysts has not been reviewed till now. This article aims to review recent advances in non‐N‐doped carbon electrocatalysts with an emphasis on their synthesis, catalytic mechanisms, and catalytic performance in various electrochemical reactions, including the ORR, OER, HER, H2O2 production, NRR, and CO2RR. Like N‐doping, boron‐doping, phosphorus‐doping, and fluorine‐doping are found to show similar catalytic efficiency for the ORR, OER, and HER. However, oxygen‐doping and boron‐doping are particularly favorable for the selective production of H2O2 and NH3, respectively, exceeding the performance of N‐doping. Along with the timely and critical overview on the non‐N‐doped carbon electrocatalysts, current challenges and future perspectives for this emerging field are also discussed.

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Section: Conclusion and Outlooksmentioning

confidence: 98%

Non‐N‐Doped Carbons as Metal‐Free Electrocatalysts

Wang

Liu

Dai

2020

Advanced Sustainable Systems

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“…Sun et al prepared a N/P‐doped aerogel with CsCl (not trace metal shown with ICP‐MS) with an inferior onset and half‐wave potential to Pt/C in alkaline electrolyte. P/N co‐doping seems to be promising for ORR/OER bifunctional catalysts, which are covered elsewhere in this review. Simulation results suggest that the P‐N bond is the real active site for OER, while the N atom next to the edge carbon seems to be responsible for ORR.…”

Section: D Carbons For the Orrmentioning

confidence: 99%

“…Indeed, given the number of possible sites in single heteroatom‐doped carbons already discussed, the addition of a second heteroatom complicates the picture somewhat. There are many recent examples in the literature of co‐doping with N of various different heteroatoms, including sulfur, phosphorous, boron, fluorine, and iodine …”

Section: D Carbons For the Orrmentioning

confidence: 99%

3D Carbon Materials for Efficient Oxygen and Hydrogen Electrocatalysis

Sobrido

Jervis

Periasamy

et al. 2019

Advanced Energy Materials

117

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Sustainable energy production at an acceptable cost is key for its widespread application. At present, noble metals and metal oxides are the most widely used for electrocatalysis, but they suffer from low selectivity, poor durability, and scarcity. Because of this, metal‐free carbons have become the subject of great interest as promising alternative electrocatalysts for energy conversion and storage devices, and remarkable progress has been accomplished in the advance of metal‐free carbons as electrocatalysts for renewable energy technologies. Particularly interesting are 3D porous carbon architectures, which exhibit outstanding features for electrocatalysis applications, including broad range of active sites, interconnected porosity, high conductivity, and mechanical stability. This review summarizes the latest advances in 3D porous carbon structures for oxygen and hydrogen electrocatalysis. The structure–performance relationship of these materials is consequently rationalized and perspectives on creating more efficient 3D carbon electrocatalysts are suggested.

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“…Dense materials, such as metal electrodes, [7][8][9] metal oxide electrodes (PbO 2 , Bi 2 O 5 -PbO 5 , IrO 2 and SnO 2 ), 10,11 borondoped diamond (BDD) electrodes [12][13][14][15] and dimensionally stable anodes (DSA, i.e., Ti/IrO 2 , Ti/RuO 2 and Ti/SnO 2 ), 16 have attracted interest from many researchers because of their improved conductivity and catalytic activity. Porous electrodes, such as active carbon bres, 17 carbon nanotubes 18 and other porous materials, [19][20][21][22][23][24][25] have been proposed as a result of their high specic surface areas, electrical conductivity and chemical resistance. The porous structures of the electrode also promote the mass transport and reaction rate in a ow-through electrolytic reactor.…”

Section: Introductionmentioning

confidence: 99%

Anti-corrosion porous RuO₂/NbC anodes for the electrochemical oxidation of phenol

Qin

Wei

et al. 2019

RSC Adv.

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Hierarchical porous N-P-coupled carbons as metal-free bifunctional electro-catalysts for oxygen conversion

Cited by 51 publications

References 53 publications

Non‐N‐Doped Carbons as Metal‐Free Electrocatalysts

Non‐N‐Doped Carbons as Metal‐Free Electrocatalysts

3D Carbon Materials for Efficient Oxygen and Hydrogen Electrocatalysis

Anti-corrosion porous RuO₂/NbC anodes for the electrochemical oxidation of phenol

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Hierarchical porous N-P-coupled carbons as metal-free bifunctional electro-catalysts for oxygen conversion

Cited by 51 publications

References 53 publications

Non‐N‐Doped Carbons as Metal‐Free Electrocatalysts

Non‐N‐Doped Carbons as Metal‐Free Electrocatalysts

3D Carbon Materials for Efficient Oxygen and Hydrogen Electrocatalysis

Anti-corrosion porous RuO2/NbC anodes for the electrochemical oxidation of phenol

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Anti-corrosion porous RuO₂/NbC anodes for the electrochemical oxidation of phenol