Nitrogen Doping Content Research Articles

Fe and N co-doped carbon with High doping content of sulfur and nitrogen for efficient CO2 electro-reduction

The low density of active sites for transition metal and N, S co-doped carbon catalyst limits the catalytic activity of CO2 electroreduction reaction (CO2RR). Herein, we synthesize a S and N dual-doped carbon-based catalyst (FeSA-S/N-C) with a high doping content for efficient electroreduction of CO2 to CO. During the synthesis process, the precursor is coated with a layer of SiO2, which prevents the formation of FeS nanoparticles and trap the volatile heteroatom during the heat treatment. The sulfur and nitrogen doping content within the final catalyst are 1.73 and 6.59 at %. The FeSA-S/N-C catalyst presents an outstanding catalytic activity and selectivity toward CO2RR with with remarkable total current density (5.11 mA cm−2) and high Faradaic efficiency (∼96.3 %) at -0.49 V (vs. RHE). The experiment results testify the introduce of sulfur can significantly expedite the kinetics rate for the CO formation. This work opens up new avenues to synthesize advanced Non-precious metal catalyst for efficient CO2 electroreduction reaction.

Boosting gravimetric and volumetric energy density of supercapacitors by 3D pomegranate-like porous carbon structure design

Recently, the heteroatom-enriched porous carbons have received considerable attention on the research of electrodes with high gravimetric capacitances for supercapacitors (SCs). However, their relatively low volumetric capacitances have limited their practical applications due to very low packing density and poor ion diffusion at high mass loadings. In this study, by means of a facile modified chemical activation route, a functionalized N and O co-doped three-dimensional (3D) hierarchical pomegranate-like porous carbon (PPC) was rationally synthesized. First, A core–shell structured precursor composite for PPC was constructed. The polypyrrole (PPy) with the desired functional group was adopted as the precursor of the pomegranate-like core, and the polyacrylamide (PAM) hydrogel as the precursor of the pomegranate-like shell (designated as PPy/PAM). Then, after calcination of the PPy/PAM hydrogel precursor composites, a novel 3D hierarchical PPC was achieved. The as-obtained PPC offers short diffusion paths of ions, increases packing density and provides abundant active sites for pseudocapacitance by increasing self-oxygen–nitrogen-doped content. The performance tests of SC with PPC manifest that at 156 W kg−1 (109.7 W L-1), boosted energy density of 11.5 Wh kg−1 (8.05 Wh L-1) can be achieved. The as-obtained PPC is the promising electrode material of high-performance SCs for practical applications.

Boosting the cyclic stability and supercapacitive performance of graphene hydrogels via excessive nitrogen doping: Experimental and DFT insights

Nitrogen-doped mesoporous graphene hydrogel (MGHG) enjoys many unique characteristics for use as an efficient energy storage electrode material. Herein, a green one-pot hydrothermal synthesis strategy was employed to synthesize highly hydrophilic nitrogen-doped mesoporous graphene hydrogel. The morphological, structural, and compositional analyses were performed using FESEM, XRD, and XPS techniques. The as-prepared MGHG exhibits high wettability (contact angle = 58.9o), high surface area (318.226 m2/g), and an unprecedented nitrogen doping content of 2.95%. The fabricated MGHG was evaluated as a supercapacitor material in 1 M aqueous K2SO4 electrolyte, revealing a maximum specific capacitance of 595.7 F.g−1 with a low equivalent series resistance (0.1664 Ω) that is ascribed to the high porosity, high surface area, and the available nitrogen redox active sites. To further elucidate the electrochemical performance of MGHG, a symmetric supercapacitor device was assembled using MGHM as negative and positive electrodes. The fabricated device shows a maximum specific energy of 30 Wh kg−1 corresponding to a specific power 1000 W kg−1. The density functional theory (DFT) computations were utilized to better understand the high performance of the assembled devices. These superior results demonstrate the excellent performance of MGHG as a potential material for highly-performing supercapacitor devices with a potential window of 2.2 V.

Nitrogen-doped porous carbon composite with three-dimensional conducting network for high rate supercapacitors

Nitrogen-doped porous carbon materials are widely used as electrode materials for supercapacitors. However, the electrodes based on these materials generally suffer from poor conductivity due to point-to-point contact of granular materials, especially at high charging/discharging rates. Herein, nitrogen-doped porous carbon composite (N-PC/CNT) with three-dimensional (3D) conducting network is prepared by carbonizing carbon nanotube (CNT) thread zeolitic imidazolate framework-8 (ZIF-8) composite. In this construction, the carbonized ZIF-8 with rich pore structure serves as a “reservoir” to provide storage space for electrolyte ions, while CNTs act as “wires” to form internal 3D conducting network for rapid electron transfer. As a result, the obtained N-PC/CNT exhibits a high specific capacitance of 334.5 F g−1 at 1 A g−1, excellent rate capability (195.5 F g−1 at 100 A g−1, capacitance retention of 58%), remarkable cycling stability (almost 100% capacitance retention after 20000 cycles) and outstanding frequency response with an ultrahigh rate up to 3 V s−1 in 6 M KOH electrolyte. These prominent performances result from the synergy of high nitrogen doping content (12.1 at.%), large specific surface area (980.2 m2 g−1), suitable pore size distribution and excellent conductivity. The assembled N-PC/CNT//N-PC/CNT symmetric supercapacitor exhibits a maximal energy density of 17 Wh kg−1 at a power density of 533 W kg−1 in 1 M Na2SO4 electrolyte. Evidently, the nitrogen-doped porous carbon composite has a great development potential for advanced supercapacitors or other electrochemical energy storage devices.

Pickering HIPEs derived hierarchical porous nitrogen-doped carbon supported bimetallic AuPd catalyst for base-free aerobic oxidation of HMF to FDCA in water

As an important renewable alternative to the production of petroleum-derived terephthalic acid, selective aerobic oxidation of biomass derivative 5-hydroxymethylfurfural (HMF) into high value-added 2,5-furandicarboxylic acid (FDCA) is attracting increasing attention. Herein, a novel hierarchical porous nitrogen-doped carbon (NC) supported bimetallic AuPd catalyst was synthesized by Pickering high internal phase emulsions (Pickering HIPEs) templating method, subsequent carbonization and the sol-curing technique. By varying Pickering HIPEs parameter, nitrogen-doped content and the loaded AuPd nanoparticles, AuxPdy/NC catalysts with adjustable porous structure and basicity were obtained. Benefiting from the synergistic effects of the high basicity of NC support and efficient bimetallic AuPd catalyst, tandem oxidation of HMF to FDCA reactions can be carried out under base-free condition in water, which makes the biomass transformation process environmental friendliness and economic. And the highest yield of FDCA at 96.7% was achieved under the optimal reaction conditions. Regeneration test revealed the obtained AuxPdy/NC catalyst was recovered and reused at least five times without significant loss of catalytic activity. The present work offers a versatile strategy for developing nitrogen-doped carbon supported highly efficient bimetallic catalysts with hierarchical porous structure and adjusting basicity for a wide range of base-free catalytic oxidation in water.

Hierarchical polyimide-derived nitrogen self-doped carbon nanoflowers for large operating voltage aqueous supercapacitor

Abstract Herein, novel polyimide (PI) nanoflowers with intertwined nanosheets is synthesized by one-step hydrothermal bottom-up self-assembly crystal growing process by using low-cost aromatic diamine and dianhydride as monomers. Then, hierarchical polyimide-based porous carbon nanoflowers (PI-CNFs) are prepared by synchronous activation and catalytic carbonization approach utilizing polyimide as carbon precursor and FeCl3 as activating agent and catalyst. Owing to its unique interlaced porous nanosheet structure, high specific surface area and high nitrogen doping content, the PI-CNFs possesses high specific capacitance, capacity rate performance and overlength cycle life. In addition, a novel symmetrical aqueous supercapacitor assembled with PI-CNFs has a large operating voltage of 2.0 V, a high specific energy of 18.3 Wh kg−1 at specific power of 500 W kg−1, as well as excellent cycling stability. Therefore, this work will propose an affordable strategy for designing novel polymer nanosheets, and open up the possibility of easy preparation, environmentally friendly and low-cost synthetic polymers-based carbon nanosheets to meet the energy storage demands.

Lignin-derived nitrogen-doped polyacrylonitrile/polyaniline carbon nanofibers by electrospun method for energy storage

Herein, we employed the lignin as sustainable carbon precursor with polyacrylonitrile (PAN) to synthesize the carbon nanofibers (CNFs), and coated the polyaniline (PANI) to acquire the high N-doped CNFs. The as-obtained lignin-derived nitrogen-doped polyacrylonitrile/polyaniline carbon nanofibers (LCNFs/PANI/N-9) displayed excellent properties, such as the large specific surface areas of 483.1 m2 g−1, uniform pore size distributions of 9.1 nm, high graphitic structure, and high nitrogen doping content of 6.31 wt%. The uniform diameter of CNFs could allow a short ion diffusion path with efficient electron transport. And the highest specific capacitance of the LCNFs/PANI/N-9 increased to 199.5 F g−1 at 1 A g−1. Besides, the N-doped CNFs presented excellent cycling stability with 82% capacitance retention after 1000 charge-discharge cycles at the current density of 4 A g−1. This research opened the new promising of high-value applications for inexpensive and renewable biomass.

Synthesis of an iron-graphene based particle electrode for pesticide removal in three-dimensional heterogeneous electro-Fenton water treatment system

Herein, a novel nitrogen-doped graphene-iron based electrocatalyst was synthesized by a simple one-step high-temperature annealing of dehydrated Prussian blue (Na4Fe(CN)6·10H2O) as a cost-effective precursor. The synthesized nitrogen-doped catalytic particle electrodes (NCPEs) were then used as heterogeneous electro-Fenton (EF) catalyst in a three-dimensional (3D) system. A high degree of graphitization and rich nitrogen doping content were observed after characterization of synthesized Fe3C@nitrogen doped-graphene-iron oxide (Fe3C@N-GE-Fe3O4) that both are beneficial for promoting oxygen reduction reaction (ORR) as a critical step in electrochemical oxidation of pollutants. The promotional effect of combining 3D and EF systems was evaluated by comparing the performance of different electrochemical processes including homogeneous EF process for the removal of p-nitrosodimethylaniline (RNO) as a model pollutant. The effect of operational parameters such as voltage, pH, NCPEs loading, and reusability on RNO decolorization was also investigated to achieve optimum conditions for pesticide removal from water as the final step of this study. RNO decolorization efficiency was found to be the best in 3D-NCPEs system comparing to other processes including 3D system with granular activated carbon (GAC) as particle electrode. Synthesized particle electrode demonstrated an excellent RNO degradation ability even in its saturated state (~91% of RNO decolorization) with low concentration of iron leaching. Moreover, in the reusability experiments of NCPEs for over 1500 min and after the fifth test, RNO decolorization efficiency remained up to 87%. Finally, the synthesized catalyst was capable of removing up to 93% of targeted pesticides from the water under optimal conditions obtained from the previous step.

Effects of Buffer Gases on Graphene Flakes Synthesis in Thermal Plasma Process at Atmospheric Pressure.

A thermal plasma process at atmospheric pressure is an attractive method for continuous synthesis of graphene flakes. In this paper, a magnetically rotating arc plasma system is employed to investigate the effects of buffer gases on graphene flakes synthesis in a thermal plasma process. Carbon nanomaterials are prepared in Ar, He, Ar-H2, and Ar-N2 via propane decomposition, and the product characterization is performed by transmission electron microscopy (TEM), Raman spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and the Brunauer–Emmett–Teller (BET) method. Results show that spherical particles, semi-graphitic particles, and graphene flakes coexist in products under an Ar atmosphere. Under an He atmosphere, all products are graphene flakes. Graphene flakes with fewer layers, higher crystallinity, and a larger BET surface area are prepared in Ar-H2 and Ar-N2. Preliminary analysis reveals that a high-energy environment and abundant H atoms can suppress the formation of curved or closed structures, which leads to the production of graphene flakes with high crystallinity. Furthermore, nitrogen-doped graphene flakes with 1–4 layers are successfully synthesized with the addition of N2, which indicates the thermal plasma process also has great potential for the synthesis of nitrogen-doped graphene flakes due to its continuous manner, cheap raw materials, and adjustable nitrogen-doped content.

Blueberry‐Peel‐Derived Porous Carbon for High‐Performance Supercapacitors: The Effect of N‐Doping and Activation

AbstractNitrogen‐doped (N‐doped) activated porous carbon has been successfully prepared, using blueberry peel (BP) as a carbon source and melamine as a nitrogen source through a simple and effective carbonization and activation process. The obtained ABP‐1.5‐700 (ABP‐x‐y, ABP: blueberry peel derived activated porous carbon; x: BP/melamine mass ratio; y: carbonization temperature), with a nitrogen doping content of 8.29 at % presented a maximum specific capacitance of 324.3 F g−1 at a current density of 1 A g−1 in 6 M potassium hydroxide (KOH) aqueous electrolyte. It also showed an excellent cycle stability about 99.9% retention after 20000 charge‐discharge cycles. The assembled ABP‐1.5‐700‐based symmetric capacitor displayed the value of the specific capacitance was 75 F g−1 at 1 A g−1 with a maximum energy density of 13.78 Wh kg−1 and a power density of 661.25 W kg−1 (0‐1.15 V) in 6 M KOH electrolyte solution. The results showed that the porous carbon derived from blueberry peel presented a good potential for high performance supercapacitors.

Nitrogen-rich porous carbon in ultra-high yield derived from activation of biomass waste by a novel eutectic salt for high performance Li-ion capacitors

High performance N-doping porous carbon (NDPC) are ideal electrode materials for Li-ion capacitors (LICs). However, the practical application of NDPC is extremely limited, which is mainly attributed to the typical methods for the scale preparation NDPC are time-consuming, high cost and low yield. Herein, we have developed a new route for high efficient, environment friendly, low cost and high yield fabrication of NDPC, using biomass waste as the carbon source and a novel eutectic salt as the activation agent. After a series of comparative experiments, the application of eutectic salt herein not only reduce the process time and cost, but also obviously enhance the yield, the specific surface area (SSA) and nitrogen-doping content of NDPC sample (labelled as NDPC-0.5). In combination of the rich N-doping level, larger SSA and interconnected porous structure, the NDPC-0.5 sample exhibit an excellent electrochemical performance as both cathode and anode materials for a LIC, with specific discharge capacities of ∼60 and 290 mAh g−1 at a current density of 5 A g−1. The resultant NDPC-0.5//NDPC-0.5 LIC device delivers a high energy density of 116.9 Wh kg−1 at 500 W kg−1, with a capacity retention of 81% after 8000 cycles at 2 A g−1.

Facile synthesis of high nitrogen-doped content, mesopore-dominated biomass-derived hierarchical porous graphitic carbon for high performance supercapacitors

Design and preparation of high N-doped content biomass-derived hierarchical porous carbon with appropriate pores size distribution and high electrical conductivity draw extensive research attention for supercapacitors. Herein, N-doped mesopore-dominated hierarchical porous graphitic carbons PG/PEI-CNi and PG/urea-CNi are successfully synthesized based on a facile “in-situ template catalyst formed-removed” method, in which the corresponding mixture of peach gum/polyethylenimine/NiCl2 and peach gum/urea/NiCl2 are treated with hydrothermal and carbonization process, respectively. As-prepared PG/PEI-CNi and PG/urea-CNi possess high N-doped content (8.7 and 8.4 at. %), high specific surface area (875.9 and 1161.4 m2 g−1) and excellent electronic conductivity (10.08 and 11.43 S cm−1). The PG/PEI-CNi and PG/urea-CNi exhibit high capacitance of 369 and 426 F g−1 at 0.5 A g−1 and excellent capacitance retention of 95.13% and 97.09% at 20 A g−1 after 10000 cycles, respectively. Moreover, PG/PEI-CNi and PG/urea-CNi assembled symmetric supercapacitors display excellent energy density of 25.76 and 30.28 W h kg−1 at power density of 180 W kg−1 in 1 M Na2SO4 electrolyte, respectively. The proposed “in-situ template catalyst formed-removed” method is prominent in the preparation of high-performance electrode materials for energy conversion/storage devices.

Scalable Synthesis of Micromesoporous Iron-Nitrogen-Doped Carbon as Highly Active and Stable Oxygen Reduction Electrocatalyst.

Micromesoporous metal-nitrogen-doped carbons have attracted incremental attention owning to their high activities for the electrocatalyzing oxygen reduction reaction (ORR). However, scalable synthesis of micromesoporous metal-nitrogen-doped carbons having superior electrocatalytic activity and stability remains a challenge. Here, an iron-nitrogen-doped carbon with highly electrocatalytic properties was simply prepared by ZnCl2 activation of an in situ polymerized iron-containing polypyrrole (PPy@FeClx) at high temperature. High yields of polypyrrole (∼98 wt %) and iron-nitrogen-doped carbon (∼47 wt %) could be reached. The eutectic state of FeClx-ZnCl2 and its derived ZnFe2O4 maskant played important roles in making micromesopores, scattering iron atoms, and trapping nitrogen atoms, leading to numerous micromesopore defects, a larger specific surface area, a more nitrogen doping content, and active sites for the material. The electrochemical tests and Zn-air battery measurements showed that the micromesoporous iron-nitrogen-doped carbon could achieve much positive onset and half-wave potentials at 0.98 and 0.90 V, respectively, as well as a large current density (6.06 mA/cm2) and good cycling stability. The combination of the iron-nitrogen doping and micromesopore defects by the eutectic salt activation method provided an effective way to scalable synthesize iron-nitrogen-doped carbon as highly active and stable oxygen reduction electrocatalytsts.

Three-dimensional graphene network deposited with mesoporous nitrogen-doped carbon from non-solvent induced phase inversion for high-performance supercapacitors

Three-dimensional graphitic carbon materials with controllable composition and hierarchically porous structure are promising electrode materials for supercapacitors. In this work, a modified phase inversion method combined with a calcination process was developed to prepare three-dimensional graphene networks embedded with nitrogen-doped carbon nanoparticles. When used as electrode for supercapacitors, the as-prepared material delivered a high capacitance of 431.9 F g−1 at 0.1 A g−1 and 156.8 F g−1 at 20 A g−1, as well as a stable cyclic behavior with no capacitance decay after 5000 cycles. Such a remakable capacitive performance was attributed to its hierarchically porous structure and proper nitrogen doping content (9.68 ± 0.24 at%), which facilitated the migration of electrolyte ions and provided abundant redox active sites for the faradic reactions. The synthetic strategy may be exploited for the rational design and synthesis of new carbon materials with controlled doping level and three-dimensional porous structure.

Nitrogen‐doped graphene prepared by thermal annealing of fluorinated graphene oxide as supercapacitor electrode

AbstractBACKGROUNDNitrogen doping significantly improves the electrochemical properties of graphene. Here, a new and effective methodology of preparing nitrogen‐doped graphene (NG) by thermal annealing of fluorinated graphene oxide (FGO) under the atmosphere of ammonia, is reported, in which ammonia is the reductant for FGO reduction and also the nitrogen source for nitrogen doping. This method can achieve higher nitrogen doping content than conventional approaches.RESULTSFGO prepared from fluorinated graphite polymer (CF) is directly used as a precursor to synthesize NG. Four samples with the same reaction time and different annealing temperatures are compared, and the highest nitrogen content of the NG reaches 12.45 at% at the reaction condition of 800 °C and 3 h. The synthesized NG samples are examined as a supercapacitor electrode material, displaying excellent performance due to the high nitrogen doping and a large number of active sites.CONCLUSIONWith the increase of annealing temperature, the nitrogen content of different NG samples first increases and then decreases. The specific capacitance of NG electrode material also shows the same trend as the nitrogen content. The highest specific capacitance in three‐electrode configuration attains 225.2 F g−1 at a current density of 1 A g−1. The electrode maintains a 90% capacitance after 5000 cycles, showing good cycle stability. This synthetic method provides a new approach for the preparation of NG with high nitrogen doping as supercapacitor electrode materials. © 2019 Society of Chemical Industry

Sub-Ångström-level engineering of ultramicroporous carbons for enhanced sulfur hexafluoride capture

Ultramicroporous carbon materials are realized by exploiting nitrogen-doping and alkali ions activation strategies on classical carboxylic phenolic resins. Through tuning the nitrogen-doped content as well as activation strength and size of the alkali ions, carbon materials present pore sizes that are controlled at the sub-Ångström level from 5.8 to 7.7 Å with precision between 0.1 and 0.4 Å. The fine-tuning of the ultramicropore size using melamine as the sacrificial templating agent improves the practicality of the carbon materials for the recovery of SF6 which are larger than conventional molecules such as CO2. Resultantly, the optimized carbon material at 1 bar and 25 °C saw a >16-fold increase in SF6 adsorption from 0.39 to 6.55 mmol g−1 while the SF6/N2 selectivity reached as high as 78.8. We attribute this to the fine-tuning of ultramicropores, leading to optimizable pore sizes that allow easy access to the large surface areas of carbon materials by the SF6 molecules. Furthermore, owing to its high adsorption performance, a 1.5-fold higher breakthrough SF6 adsorption capacity alongside a 2-fold increase in SF6/N2 selectivity were realized under dynamic breakthrough conditions. The stability and recyclability of the carbon materials were also demonstrated with a long-term performance evaluation of up to 10 consecutive adsorption-desorption cycles.

Doped porous carbon nanostructure materials as non-precious metal catalysts for oxygen reduction reaction in alkaline and acid media

Various doped porous carbon nanomaterials to replace Pt-based catalysts for oxygen reduction reaction (ORR) in acid and alkaline media have been intensively studied. Herein, doped porous carbon nanostructure materials as non-precious metal catalysts for ORR are synthesized using different weight ratios of polyaniline (PANI) to dicyandiamide (DCDA) as carbon source and dopants with iron salt to control the specific surface area and nitrogen doping content. The as-prepared samples exhibit well-defined porous carbon structure that consists of micro- and meso-pores, high specific surface areas, increased amount of nitrogen dopant, and relative content of graphitic N and pyridinic nitrogen N. Among these doped porous carbon nanostructure catalysts, the catalyst synthesized using a proper ratio of PANI to DCDA exhibits significantly improved electrocatalytic performance for ORR, i.e., high half-wave potential, high specific activity, and enhanced stability in both acid and alkaline media, because of the high graphitic N/pyridinic nitrogen N and micro-pore ratios.

Supercapacitors with high nitrogen content by cage-like Ganoderma lucidum spore

This paper described one-step method to preparing supercapacitors by using natural ganoderma lucidum spores, whose hollow cage structure could facilitate the transmission and storage of electrons. We have investigated the effects of carbonized temperature and carbonized gas on the electrochemical properties of spores. After carbonizing the spore material under flowing ammonia, the nitrogen doping content of it was 8.86%. The specific capacitance of the prepared electrode was 187.3 F/g (at 1 A/g). After 10,000 charge-discharge cycles, the sample remained 93.3% of its capacity. In addition, after being irradiated by γ ray (50 kGy), the carbonized sample remained 100.7 F/g (at 1 A/g) of specific capacitance.

Three-dimensional nitrogen-doped reduced graphene oxide aerogel decorated with Ni nanoparticles with tunable and unique microwave absorption

Developing microwave absorption (MA) materials with compatible dielectric constant and good impedance matching is a great challenge. Herein, a series of composites with Ni nanoparticles anchored on three-dimensional nitrogen-doped rGO aerogels (N-rGA/Ni) are successfully synthesized with the aid of EDTA. The characterizations confirm that nano-sized Ni nanoparticles are evenly and firmly distributed onto graphene sheets. The calcination temperature affects the graphitization degree, nitrogen doping content, particle size as well as magnetism of Ni nanoparticles, which can direct the dielectric loss and magnetic loss of N-rGA/Nis. Among, N-rGA/Ni(600) manifests the best property with maximum reflection loss (RL) of −60.8 dB at 13.7 GHz, and effective absorption band (EAB) of 5.1 GHz at the layer thickness of 2.1 mm, which is ascribed to its proper dielectric loss and better impedance matching. Products obtained at calcination temperature of 500 °C and 700 °C also exhibit unique advantages. N-rGA/Ni (500) possesses wider EAB (6.6 GHz) at a fixed thickness (2.4 mm), while the microwave absorption of N-rGA/Ni(700) can reach −47.9 dB even at an extremely thin layer (1.6 mm). These results indicate that the N-rGA/Ni composites can meet different microwave absorption demands and be ideal candidates to be used as multi-role synergistic microwave absorbents.

Bio-derived N-doped porous carbon as sulfur hosts for high performance lithium sulfur batteries

Shuttle effect, poor conductivity and large volume expansion are the main factors that hinder the practical application of sulfur cathodes. Currently, rational structure designing of carbon-based sulfur hosts is the most effective strategy to address the above issues. However, the preparation process of carbon-based sulfur hosts is usually complex and costly. Therefore, it is necessary to develop an efficient and cost-effective method to fabricate carbon hosts for high-performance sulfur cathodes. Herein, we reported the fabrication of a bio-derived nitrogen doped porous carbon materials (BNPC) via a molten-salt method for high performance sulfur cathodes. The long-range-ordered honeycomb structure of BNPC is favorable for the trapping of polysulfide (PS) species and accommodates the volumetric variation of sulfur during cycling, while the high graphitization degree of BNPC favors the redox kinetics of sulfur cathodes. Moreover, the nitrogen doping content not only enhances the electrical conductivity of BNPC, but also provides ample anchoring sites for the immobilization of PS, which plays a key role in suppressing the shuttle effect. As a result, the S@BNPC cathode exhibits a high initial specific capacity of 1189.4 mA·h/g at 0.2C. After 300 cycles, S@BNPC still maintains a capacity of 703.2 mA·h/g which corresponds to a fading rate of 0.13% per cycle after the second cycle. This work offers vast opportunities for the large-scale application of high performance carbon-based sulfur hosts.