Nanomaterials
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2022
·Vol. 12
·期 19
·3512
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IF 5.719
Zhaofeng Wu,Yidan Xia,Lixiang Liu,Qihua Sun,Jun Sun,Furu Zhong,Min Zhang,Haiming Duan
Waste human hair was carbonized into carbon sheets by a simple carbonization method, which was studied as gas sensing materials for the first time. The effect of carbonization temperature on the structure and gas sensing properties of hair-based carbon sheet was studied by scanning electron microscope, X-ray diffraction, infrared spectrum, Raman spectrum, and gas-sensitive tester. The results showed that the carbonization temperature had a significant effect on the structure and gas sensing performance of carbon sheets, which were doped with K, N, P, and S elements during carbonization. However, the sensor of the carbon sheet does not show good selectivity among six target gases. Fortunately, the carbon sheets prepared at different temperatures have different responses to the target gases. The sensor array constructed by the carbon sheets prepared at different temperatures can realize the discriminative detection of a variety of target gases. For the optimized carbon sheet, the theoretical limit of detection of hydrogen peroxide is 0.83 ppm. This work provides a reference for the resource utilization of waste protein and the development of gas sensors.Keywords:human hair;biomass carbon material;gas-sensitive properties;carbon sheets
研究领域:
材料科学
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环境科学
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传感技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2017
·
IF 3.133
Jiangdong Dai,Sujun Tian,Yinhua Jiang,Zhongshuai Chang,Atian Xie,Ruilong Zhang,Yongsheng Yan
It is still a big challenge to obtain porous carbons for antibiotics removal by simple methods. Here, we reported a facile, cost-effective and one-pot approach for preparation of porous carbon sheets via in-situ template and self-activation using potassium acetate as single precursor. The optimal porous carbon was prepared at reaction temperature of 900 °C to obtain the highest BET surface area of 2358.57 m 2 g −1 with equilibrium adsorption capacity of 588.24 mg g −1 for chloramphenicol (CAP) at 298 K . The adsorption ability of this highly porous carbon was far higher than most adsorbents mentioned in previous literature. Meanwhile, adsorption equilibrium could achieve rapidly within 250 min. The Langmuir isotherm model and pseudo-second-order kinetic model were well fitted to adsorption experimental data. Significantly, the adsorbent exhibited excellent stability and regeneration performance after four times cycles. The high adsorption capacity, fast kinetic, chemical stability and regeneration ability of this porous carbon make it a candidate for antibiotics removal in wastewater treatment.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Chen Chen,Huawen Huang,Renzong Hu,Ran Bi,Lei Zhang
Magnesium-ion batteries (MIBs) have aroused widespread interest in large-scale applications due to their low cost, high volumetric capacity, and safety. However, magnesium (Mg) metals are incompatible with conventional electrolytes, making it difficult to plate and strip reversibly. Therefore, developing novel Mg2+ host anodes remains a huge challenge. Herein, we present a rational design and fabrication of binary Bi@Sn alloy nanoparticles embedded in carbon sheets (Bi@Sn–C) as a superior anode for MIBs employing phase separation during the annealing of bimetallic MOFs. The Bi@Sn–C simultaneously integrates the nanostructure design and multi-element coordination strategies which is favorable to improve the overall structural stability and Mg2+ diffusion kinetics. Benefiting from the aforementioned features, the Bi@Sn–C electrodes deliver good cycling stability of 214 mA h g–1 at 100 mA g–1 after 100 cycles and rate capability with 200 mA h g–1 at 500 mA g–1. And when using all-phenyl complex with lithium chloride (LiCl–APC) dual-salt electrolyte, the electrochemical performance of Bi@Sn–C is further optimized and shows enhanced rate performance (238 mA h g–1 at 500 mA g–1) and reversible capacity (308 mA h g–1 at 100 mA g–1 after 100 cycles). This novel strategy holds great promise for designing efficient alloy electrode materials for MIBs.
研究领域:
材料科学
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能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2021
·
IF 4.311
Fuming Wu,Jianping Gao,Saisai Zuo,Wei Wang,Haixia Qiu
In this paper, Cu 2 O-loaded S-doped worm-like hierarchical porous carbon flakes (SCu-HPCFs) have been prepared for supercapacitor applications by using cheap sweet potato starch as a raw material via a controlled carbonization–activation-hydrothermal reaction process. The as-prepared SCu-HPCFs possess hierarchical porous structure, large specific surface area (2543.68 m 2 g −1 ), s doping state and good electrical conductivity. The SCu-HPCFs electrode exhibits a high specific capacitance of 451 F g −1 at 1 A g −1 and good rate capability (retention of 79% from 1 to 15 A g −1 ). Moreover, the asymmetric supercapacitor assembled using the SCu-HPCFs as a negative electrode and NiO/RGO as a positive electrode shows a high energy density of 30.2 W h kg −1 at a high power density of 800.4 W kg −1 and can still achieve 23.5 W h kg −1 at 8070.9 W kg −1 . At the same time, it has excellent cycling stability (90.8% retention after 10,000 cycles). The high capacity performance can be attributed to rich porous structure, high specific area and pore volume, Faraday contribution caused by S doping and the fast redox reaction of Cu 2 O.
研究领域:
材料科学
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能源工程
✓ 已验证
DOI
高影响因子
Inorganic Chemistry Frontiers
·
2023
·Vol. 10
·期 23
·7038-7053
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IF 7
Riguang Cheng,Jiaxi Liu,Pantrangi Manasa,Mi Zhou,Yanxun Guan,Kexiang Zhang,Xiangcheng Lin,Federico Rosei,Aleskey A. Pimerzin,Hans Jürgen Seifert,Fen Xu,Lixian Sun,Dan Cai,Julan Zeng,Zhong Cao,Hongge Pan
High energy density, stable, and inexpensive electrode materials have the potential to improve the performance of lithium–sulfur (Li–S) batteries. Developing high porosity, high conductivity, and a network framework for multidirectional ion transfer in Li–S batteries, on the other hand, remains a significant challenge. Nitrogen and phosphorus co-doped porous carbon sheets (PCS900) are designed and synthesized here with high porosity and abundant active sites. PCS900 can withstand high sulphur loading while also providing multidirectional ion transport channels. Density functional theory (DFT) calculations indicate that nitrogen and phosphorus co-dopants play an important role in suppressing the shuttle effect via the chemical interaction between sulfur and the carbon framework. At a current density of 1 C, the PCS900/S electrode has an initial specific capacity of 737 mA h g−1, and the average capacity decay rate per 500 cycles is as low as 0.079%. Furthermore, the heat released during the discharging process is greater than the heat released during the charging process due to the combination of in situ XRD and microcalorimetry techniques.
研究领域:
材料科学
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电化学
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能源存储
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纳米技术
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应用化学
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2021
·
IF 5.316
Jing Hu,Chenming Yin,Miao Cheng,Tao Wei,Qianqian Liu,Wanfei Li,Yun Ling,Yafei Zhang,Bo Liu
Constructing heterostructure and N-doping are two effective methods to improve gas sensing performance. Herein, a facile novel solution calcination strategy has been proposed to synthesize N-doped carbon sheets-zinc oxide (NC-ZnO) hybrids for low concentration NO 2 detection. The formation of NC is accompanied by generation of ZnO particles on its surface to construct heterostructure. Intriguingly, NO 3 - acts as an expanding agent and N source in the calcination process, wherein the N elements are directly doped into carbon sheets. As expected, the prepared heterostructural NC-ZnO-63 hybrids exhibit 74.9 times enhancement of response as well as high sensitivity (~ 265.8–20 ppm NO 2 ), excellent repeatability and selectivity compared with pure ZnO. Importantly, the measured detection limit of the NC-ZnO-63 sensor to NO 2 is about 100 ppb (~ 0.3) and the calculated detection limit is 2.65 ppb. Furthermore, the influences of humidity on testing NO 2 gas have been researched systematically which would provide guidance for practical use of similar sensors. In this work, ZnO and derived carbon are low-cost, eco-friendly, and the synthesis strategy presented here is simple and repeatable, which provides new idea for mass fabricating other-type metal oxides-NC hybrids for various applications.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Storage
·
2024
·
IF 8.9
Jinkui Li,Jiao Li,Zhe Hu,Mingwu Xiang,Kaijiao Duan,Yi Guo,Wei Bai,Xiaofang Liu,Junming Guo
Porous carbon synchronously with high conductivity and abundant porous structure is considered to be an effective sulfur host material for boosting the lithium-storage property in battery fields. Herein, a natural silk cocoon derived in-situ N-doping porous carbon lamella with ultrahigh graphitization degree is prepared by a facile synchronous carbonization and catalysis using the bimetallic mixed salts of FeCl 3 and ZnCl 2 . The pore structure and graphitization degree are easily regulated by changing carbonization temperature to balance the synergistic adsorption and conversion actions toward the polysulfides adhered to porous carbon lamellar. When the carbon lamellar is used to design sulfur cathode, the abundant porous structure not only encapsulates active sulfur, but also facilitates electrolyte infiltration. The shuttle effect of polysulfides can be restrained by the synergistic adsorption of porous structure and N-doping. Especially, the ultrahigh graphitized carbon lamellas provide an excellent conductive network for the favorable redox conversion of polysulfide species during charge/discharge. Owing to the structure merits of the porous carbon lamella prepared at 1000 °C, the corresponding carbon/sulfur composite cathode delivers a first discharge capacity of 807.7 mAh g −1 at 0.2C. Even at a current rate of 1C, the stable long cycling performance of 1000 cycles is still maintained. This high graphitized porous carbon materials will provide potential application in other energy-storage fields.
研究领域:
材料科学
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能源存储技术
✓ 已验证
产品关联
DOI
高影响因子
LANGMUIR
·
2018
·
IF 3.789
Lili Zhang,Lei Liu,Xiaolin Hu,Yifeng Yu,Haijun Lv,Aibing Chen
Composite carbon materials with multiple morphologies (such as spheres/sheets and spheres/tubes) that combine the merits of both structures have a wide range of applications in electrochemistry, catalysis, energy storage, and so on. Therefore, the development of an efficient and simple method for preparing carbonaceous composite materials is a research hot spot. On the basis of the inhomogeneity of 3-aminophenol/formaldehyde (3-AF) polymerization spheres, the hollow 3-AF spheres were obtained after the dissolution of the internal 3-AF oligomer. The dispersed 3-AF oligomer was reassembled with silicate oligomers on the hard template of Mg(OH)2 sheets and hollow 3-AF spheres linked by CTAB through electrostatic force. The obtained N-MCS/HCS possessed both sheet and sphere structure, with a high specific surface area and uniform mesoporous distribution. As an electrode material, N-MCS/HCS exhibited a good specific capacity (270 F g–1 at the current density of 1 A g–1) and outstanding cycling life stability (96.3% after 5000 cycles) at a current density of 5 A g–1 and could be used as a new electrode material.
研究领域:
材料科学
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电化学
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能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Tiantian Fu,Lingtao Sun,Guijun Li,Yang Xiang,Yibo Tang,Jingqi Sha,Ying Lei,Zhongping Xiong,Yujun Si,Chaozhong Guo
A nitrogen and sulfur codoped carbon-based catalyst (Fe-NS-AG-C) to oxygen reduction reaction (ORR) is prepared by pyrolyzing a precursor from iron chloride, thiourea, anhydrous glucose and carbon black. Glucose is transformed to carbon sheets with defect-rich structures which are highly active to the anchoring of nitrogen and sulfur atoms. Correspondingly, the 3.35 at% and 0.63 at% contents of nitrogen and sulfur in Fe-NS-AG-C are heavily higher than the 0.71 at% and 0.26 at% in the controlled catalyst Fe-NS-C (without glucose). The edge-oriented pyridinic N is easily formed as ORR active sites with the C-S structure. A dual mesopore-dominated microstructure is also constructed by the carbon sheets to favor the mass transfer in the reaction process. As a result, the Fe-NS-AG-C presents outstanding ORR performance with more positive half wave potential, greater limiting current density, and better methanol tolerance than the benchmark Pt/C catalyst. The Zn-air battery assembled with Fe-NS-AG-C outputs 1.48 V of open circuit voltage, 156 mW cm −2 of maximum power density, and 1.26 V of work voltage, 785 mAh g −1 Zn of specific capacity and 983 mWh g −1 Zn of specific energy density at 10 mA cm −2 of discharge current density.
研究领域:
材料科学
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电化学
✓ 已验证
DOI
高影响因子
Small
·
2022
·Vol. 18
·期 44
·2203976
·
IF 15.153
Anding Xu,Qi Zhu,Guilan Li,Caihong Gong,Xue Li,Huaming Chen,Jie Cui,Songping Wu,Zhiguang Xu,Yurong Yan
Metallic Bi, as an alloying-type anode material, has demonstrated tremendous potential for practical application of potassium-ion batteries. However, the giant volume expansion, severe structure pulverization, and sluggish dynamics of Bi-based materials result in unsatisfied rate performance and unstable cycling stability. Here, 2D bismuth@N-doped carbon sheets with Bi O C bond and internal void space (2D Bi@NOC) are successfully fabricated via a self-template strategy to address these issues, which own ultrafast electrochemical kinetics and impressive long-term cycling stability for delivering an admirable capacity of 341.7 mAh g −1 after 1000 cycles at 10 A g −1 and impressive rate capability of 220.6 mAh g −1 at 50 A g −1 . Particularly, the in situ transmission electron microscopy observations visualize the real-time alloying/dealloying process and reveal that plastic carbon shell and void space can availably relieve dramatic volume stress and powerfully maintain structural integrity. Density functional theory calculation and ultraviolet photoelectron spectroscopy test certify that the robust Bi O C bond is thermodynamically and kinetically beneficial for adsorption/diffusion of K + . This work will light on designing advanced high-performance energy materials and provide important evidence for understanding the energy storage mechanism of alloy-based materials.
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Tiantian Feng,Zhijie Cui,Pengfei Guo,Xuehong Wang,Juan Li,Xien Liu,Wenpin Wang,Zhongcheng Li
Recent experimental analysis indicates WO 3 -based nanostructures exhibit poor hydrogen evolution reactivity, particularly in alkaline medium, arising from the low electron transfer rate. It is imperative to tune the composition and structure of WO 3 to boost the cleavage of H-OH bond. Here, we construct Ru/WO 3 -W 2 N/N-doped carbon sheets (Ru/WO 3 -W 2 N/NC) using m-WO 3 nanosheets as precursors with the aid of RuCl 3 , Tris (hydroxymethyl) aminomethane, and dopamine. Structural investigation reveals the formation of N-doped carbon sheets, Ru nanoparticles, and WO 3 -W 2 N. As a result, hydrogen evolution reactivity is greatly improved on Ru/WO 3 -W 2 N/N-doped carbon sheets with 64 mV at 10 mA/cm 2 in 1 mol/L (M) KOH, outperforming most of WO 3 -based electrocatalysts in previous literatures. Meanwhile, it facilitates the generation of H 2 in 0.5 M H 2 SO 4 with the excellent activity of 110 mV at 10 mA/cm 2 . Our work provides an efficient strategy to tailor the electronic structure of WO 3 to catalyze acidic and alkaline hydrogen evolution reaction.
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Environmental Science-Nano
·
2024
·Vol. 11
·期 5
·2275-2288
·
IF 5.8
Yadan Song,Yalong Liu,Yangju Li,Haipeng Hu,Kexin Huang,Zhe Zhang,Zhongxian Li,Wanning Cao,Kai Jiang,Dapeng Wu
The poor anti-interference ability of radical-dominated processes continues to be a hindrance to the effectiveness of purification and the practical use of peroxymonosulfate-based advanced oxidation processes (PMS-AOPs). Herein, iron, nitrogen, and sulfur co-doped porous carbon sheets (Fe–SNC) were successfully synthesized via a one-step pyrolysis process by adopting Mohr's salt and ZIF-8 sheets as precursors to efficiently activate PMS. Quenching experiments and electron paramagnetic resonance (EPR) characterization indicated that singlet oxygen (1O2) played the most important role in phenol degradation. Based on the variation in the material structure and density functional theory (DFT) calculations, the study revealed the specific mechanism of sulfur embedded in rich Fe3C, Fe4N, and Fe–Nx catalytic sites as an activator of PMS in the degradation of the pollutant of interest. In addition, S-doping sites were shown to shorten the distance between PMS and the catalyst due to electron polarization of the catalyst surface, which facilitated PMS adsorption. According to ultra-high-resolution electrospray time-of-flight mass spectrometry and the predictions of ECOSAR software, the aquatic ecological environment would not be harmed by degradation intermediates. As a consequence, this heterogeneous system possesses admirable anti-interference in pollutant elimination. These conclusions provide instructions for the creation of S-doped porous carbon sheets for effective water treatment.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）