Energies
·
2023
·Vol. 16
·期 21
·7232
·
IF 3.2
Congxiu Guo,Guilin Li,Yujia Wu,Xuhui Wang,Yu Niu,Jiao Wu
Porous carbon materials derived from ZIF-8 have attracted extensive research attention on account of their large surface area, tunable mesoporosity and abundant nitrogen content. However, directly carbonized ZIF-8 usually suffers from a low electronic conductivity, poor wettability and relatively low mesoporosity, which severely restricts their capacitive performance. Herein, P-doped modified carbon materials derived from ZIF-8 (ZPCs) were synthesized by using nontoxic phytic acid as a phosphorus source, followed by carbonization at high temperature. Benefiting from its relatively high specific surface area of 911.7 m2g−1and higher ratio of mesopores, as well as N, O and P doping, ZPC-1000 delivers the largest specific capacity, up to 219.4 F g−1at 1 A g−1, among the prepared samples and an outstanding cycle span, retaining 100% capacity after 2000 cycles at 5 A g−1. In this work, we highlight the strategy of constructing a synergistic effect between high mesoporosity and heteroatom doping, which can greatly boost the capacitive performance of carbon materials.Keywords:P doping;ZIF-8;porous carbon;capacitive performance
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2024
·
IF 13
Aizhu Chen,Xuhui Yang,Lijuan Shen,Ying Zheng,Min-Quan Yang
Loading cocatalysts onto semiconductors is one of the most popular strategies to inhibit charge recombination, but the efficiency is generally hindered by the localized built-in electric field and the weakly connected interface. Here, this work designs and synthesizes a 1D P-doped CdS nanowire/Ni 2 P heterojunction with gradient doped P to address the challenges. In the composite, the gradient P doping not only creates a funneled bandgap structure with a built-in electric field oriented from the bulk of P-CdS to the surface, but also facilitates the formation of a tightly connected interface using the co-shared P element. Consequently, the photogenerated charge carriers are enabled to be pumped from inside to surface of the P-CdS and then smoothly across the interface to the Ni 2 P. The as-obtained P-CdS/Ni 2 P displays high visible-light-driven H 2 evolution rate of ≈8265 µmol g −1 h −1 , which is 336 times and 120 times as that of CdS and P-CdS, respectively. This work is anticipated to inspire more research attention for designing new gradient-doped semiconductor/cocatalyst heterojunction photocatalysts with bridged interface for efficient solar energy conversion.
研究领域:
材料科学
·
能源转换
·
光催化技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Energy Materials
·
2022
·
IF 6.959
Yiyuan Ding,Xin Ren,Dong Chen,Fanjue Wen,Ting Li,Fei Xu
Rechargeable Mg batteries have the advantages of abundant reserves and high safety, but suitable inorganic cathodes are quite limited. Organic polymers break the hindrance of the inorganic Mg-storage crystal lattice and provide more selections, but the reports on organic rechargeable Mg battery cathodes are relatively few. Herein, high-capacity bipolar organic cathodes are developed for rechargeable Mg batteries. Poly(1,5-diaminoanthraquinone) with double polyaniline chains is used as a bipolar cathode. The carbonyl and amino groups are employed as the N-doping and P-doping centers, respectively, and the conjugated anthraquinone unit delocalizes the charge density change during the redox reactions. Considering the mass of Mg salt, the poly(1,5-diaminoanthraquinone) cathode provides a high corrected capacity of 267 mA h g–1 (non-corrected capacities of 297 mA h g–1) for bipolar reactions. Moreover, compared with the single-chained poly(1-aminoanthraquinone) (44% capacity maintained after 140 cycles), the double-chained poly(1,5-diaminoanthraquinone) shows a much better N-doping cycleability (97% capacity maintained after 300 cycles), as the double polyaniline chains enhance the structure stability during the Mg-storage reaction. The present study demonstrates the importance of a large conjugated double-chain structure to enhance the Mg-storage performance of organic polymers. It is also imagined that the bipolar organic materials with both of N- and P-dopings are a highly promising strategy for development of high-capacity organic Mg battery cathodes.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Environmental Science-Nano
·
2021
·Vol. 9
·期 2
·511-522
·
IF 8.131
Xiaohui Zhong,Zuqi Zhong,Shujie Liang,Gongchang Zeng,Shuang Cheng,Hong Deng,Zhang Lin
The electrochemical CO2 reduction reaction (CO2RR) to HCOOH offers a promising strategy for a carbon-neutral cycle. Sn-Based materials have been demonstrated as applicable in extensive studies of CO2RR to HCOOH, but great challenges still remain, including the weak CO2 adsorption and narrow potential window as well as low stability. Herein, we developed ultrasmall Sn nanoparticles inlaid on N/P-doped carbon (Sn@NPC) composites by an upcycling design using Sn electroplating sludge. The obtained Sn@NPC electrode exhibited a higher Faradaic efficiency of 87.93% for HCOOH at 1.05 V vs. RHE and an FE over 80% within a 500 mV broad potential window. Moreover, the Sn@NPC electrode achieved excellent long-term stability up to 105 h, which was superior to that of most Sn-based catalysts in similar systems. Density functional theory calculations demonstrated that Sn@NPC could enhance CO2 adsorption, which led to stronger *OCHO adsorption, weaker *HCOOH adsorption and faster electron/mass transport. This work may provide a promising lead for recycling metal from electroplating sludge and for the design of efficient and stable catalysts for the CO2RR.
研究领域:
材料科学
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环境科学
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电化学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Storage
·
2023
·
IF 9.4
Xing Chen,Haijun Tao,Yinhua Jiang,Shishi Li,Yuxin Liu,Kun Xie,Yuqiao Wang
P-doped S vacancy-rich NiCo 2 S 4 hollow microspheres (P-NiCo 2 S 4-x HMSs) were prepared by hydrothermal, sulfuration, and phosphorization methods. P doping and S vacancy dual defects can be simultaneously obtained during the phosphorization process. The dual defects can modulate the electron structure and create abundant electrochemical sites, boosting electron transfer and reaction kinetics. Theoretical calculations illustrated that the dual defects could reduce the adsorption energy of OH − and Mulliken charges of Ni atoms, in favor of OH − adsorption. The hollow construction can increase the specific surface area, promote ion diffusion, and alleviate the volume variation during charge/discharge processes. The specific capacity and rate capability of the P-NiCo 2 S 4-x HMSs electrode can reach up to 1146.0 C g −1 at 1 A g −1 and 61.8 % at 30 A g −1 , respectively. The P-NiCo 2 S 4-x HMSs electrode exhibited remarkable cycling stability with a 79.5 % capacity retention after 20,000 consecutive charge/discharge cycles. The assembled P-NiCo 2 S 4-x //AC hybrid supercapacitor manifested an infusive energy density of 62.7 Wh kg −1 at 867 W kg −1 .
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Xiang Zhou,Xiaohao Liu,Fenglei Qi,Haixia Shi,Ying Zhang,Peiyong Ma
P-doped mesoporous carbon material is receiving increasing attention in various fields due to its special physicochemical properties, but the research in the field of pollutant removal is rarely reported. Herein, P-doped furfural residue-based carbon materials (PFRC) with ultra-high mesoporous ratio (93.9%), narrow pore size distribution and large surface area (1769.4 m 2 g −1 ) was prepared by a simple method of fast pyrolysis of phosphoric acid treated furfural residue (FR). A series of characterizations were carried out to explore the physicochemical properties and P-doping mechanism of the materials systematically. With the increase of the activation temperature, the evolution of the P-doped structure is as follows: adsorbed phosphate → P-O-C aromatic → O3P-C aromatic → O2P-C2 aromatic → OP-C3 aromatic . The PFRC500 prepared at 500 °C has the most abundant P-O-C aromatic and P-C aromatic structures, which lead to a higher specific surface area, more developed pore structure and more graphite edge defects than other PFRCs. Methylene blue (MB) adsorption studies showed that PFRC500 had a good adsorption performance with 486 mg g −1 equilibrium adsorption capacity and 97.2% of removal rate (T = 298 K, C 0 = 100 mg L −1 ). The adsorption kinetics and thermodynamics were studied. The role of P structure in MB adsorption was explored for the first time. the adsorption mechanism was explored. The P-O-C aromatic , O3P-C aromatic and O2P-C2 aromatic structures are the main chemical adsorption sites, but C3 aromatic -PO is not. This work can provide guidance for the design of P-doped mesoporous carbon materials with better adsorption performance in the future.
研究领域:
环境科学
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材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2022
·Vol. 169
·期 9
·097501
·
IF 4.386
Dongmei Ren,Xingwen Wang,Chunpeng Leng,Wei Meng,Jingrui Zhang,Chao Han
4-Nitrophenol (4-NP) is a typical organic pollutant, thus it is urgent to detect it in environmental samples. This study rationally designed a novel electrode material of P-doping Fe/Fe3O4@C (P-Fe/Fe3O4@C) prepared with MIL-88 as precursor. P2h-Fe/Fe3O4@C-700 was synthesized by calcining MIL-88 at 700 °C, followed by annealing process with NaH2PO2 for 2 h. The P2h-Fe/Fe3O4@C-700 modified glassy carbon electrode (P2h-Fe/Fe3O4@C-700/GCE) showed a high electrocatalytic activity toward 4-NP reduction due to its active metal center, fine-tuned electronic structure by P-doping, as well as good electrical conductivity. It exhibited excellent sensing behaviors in 4-NP detection with rather high sensitivities of 1415.43 μA·mM−1·cm−2 and 424.63 μA·mM−1·cm−2 in the 4-NP concentration of 5 to 100 μM and 100 to 1200 μM, respectively, with a low detection limit of 0.462 μM. The P2h-Fe/Fe3O4@C-700/GCE still had good selectivity for 4-NP detection in the presence of common interferences. In addition, it was found that the current response towards 4-NP at P2h-Fe/Fe3O4@C-700/GCE retained more than 97% of its initial value after one week, indicating a good long-term stability. Furthermore, the P2h-Fe/Fe3O4@C-700/GCE exhibited a good reproducibility. The constructed P2h-Fe/Fe3O4@C-700/GCE achieved practical uses for the sensing of 4-NP in tap water with satisfactory recoveries.
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
ELECTROCHEMISTRY COMMUNICATIONS
·
2024
·
IF 4.7
Kewei Shu,Cunguo Yang,Huizhu Niu,Xiaorui Fuyan,Shuqi Yang,Haihua Wang
GeP 3 is a promising anode material for sodium ion battery due to better conductivity, relatively high theoretical capacity and improved mechanical endurance compared to phosphorus and other phosphides. However unsatisfied rate capability and cycling stability is still an annoying issue that hinders the application of GeP 3 . Here, GeP 3 was hybridized with P doped carbon (PPC) derived from low-cost coal tar pitch to prepare composite electrode. Through ball-milling process, the GeP 3 and PPC was homogenously mixed and form fused, secondary particles as confirmed by electron microscope. The formation of P-C and P-O-C bond between GeP 3 and carbon matrix was evidenced by XPS, and prompted by P doping level and O content in PPC. The electrochemical performance of the composite electrodes was evaluated, demonstrated much enhanced properties compared to bare GeP 3 and also GeP 3 /carbon black electrode. High reversible capacity of 781 mAh/g was achieved by GeP 3 /PPC-950 at 0.05 A/g. At higher current density of 2 A/g, the capacity can maintain at 360 mAh/g, 46% of the value that obtained at 0.05 A/g. The correlation between the structure of carbon and battery performance was discussed. The improvement in battery performance can be attributed to suppressed volume expansion and good conductive network of the GeP 3 /PPC composite, which affected by P doping level and O content of PPC.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Wenpei Kang,Xuqiang Hu,Mengjia Han,Danyang Bai,Yurong Zhao,Daofeng Sun
Alloying-type anode materials have been demonstrated to be potential alternatives for the sodium ion batteries (SIBs). Nevertheless, the serious capacity decay inhibits their practical application. Herein, alloying-typed amorphous Sb species confined into N,O,P-doped biomass carbon microsphere (Sb@BCM) through Sb-O-C bonds is prepared via in-situ galvanic replacement of the Ni nanoparticles wrapped into the BCM (Ni@BCM), which is obtained from the hydrothermal and carbonization reaction with the Ni 2+ and porphyra. Benefitted from the optimized Sb species anchoring, stable Sb–O–C bond and N,O,P-doped carbon skeleton, Sb@BCM-3 anode exhibits enhanced reaction kinetics and cycling stability in SIBs. Sb@BCM-3 anode can deliver high rate capability of 210.0 mAh g −1 at 5.0 A g −1 and stable capacities of 171.1 mAh g −1 at 1.0 A g −1 over 1000 cycles. The fast sodium storage capability should be promoted by the pseudo-capacitive contribution. And in the Sb@BCM-3//Na 3 V 2 (PO 4 ) 3 @C full cell, a capacity of 121.2 mAh g −1 can be retained at 0.1 A g −1 over 50 cycles. Moreover, the ex-situ X-ray diffraction measurement illustrates the alloying reaction mechanism and the high reversibility for the Sb@BCM-3, which can guarantee the high capacity and good cycling stability. This study offers a method to enhance Sb anode performance through interfacial bonding with carbon.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Weijie Zhang,Shunshun Zhao,Yupeng Xing,Hongjie Qin,Qiling Zheng,Penghui Zhang,Shouwei Zhang,Xijin Xu
The sustainable conversion from solar energy to chemical energy is realized by using photocatalytic technology to produce hydrogen and hydrogen peroxide. In this work, the construction of a direct Z-scheme heterojunction is of great significance for improving the efficiency and stability of photocatalytic hydrogen evolution (PHE) and photocatalytic hydrogen peroxide production (PHP). In this study, P-doped h-BN (PBN) nanosheets are used to support the in-situ growth of ZnIn 2 S 4 nanoflowers via wet chemical method, and sandwich-like PBN/ZnIn 2 S 4 hierarchical heterostructures are successfully synthesized. The PHE performance of PBN/ZnIn 2 S 4 (∼59.46 μmol/h) is ∼ 2.35 times than that of the original ZnIn 2 S 4 (∼25.27 μmol/h), and the PHP performance (∼122.82 μmol/L/h) is 39.37 times than that of PBN (∼3.12 μmol/L/h). The excellent photocatalytic performance of PBN/ZnIn 2 S 4 can be attributed to the following points: (1) the acceleration of the separation of photogenerated electron-hole pairs induced by the formation of Z-scheme heterostructure; (2) reasonable design and construction of sandwich-like PBN/ZnIn 2 S 4 hierarchical heterostructure; (3) the promotion the migration and separation of photogenerated carriers by the built-in electric field. This work provides new ideas for the development of high-efficiency PHE and PHP Z-scheme heterojunction photocatalyst design.
研究领域:
材料科学
·
能源化学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Ziyan Pu,Zengquan Zhu,Xiao-Jun Lv,Yueming Li
Conventional lithium-ion batteries (LIBs) are nearing their theoretical capacity limit, and there is an urgent need to develop energy storage devices with higher energy densities and cycling stabilities. In this work, a hybrid electrode design, which combines the traditional “rocking chair” mechanism and “anion intercalation” mechanism to improve energy density is reported. The hybrid electrode is composed of LiMn 2 O 4 and N,P-doped graphite (NPG) to use both anion and cation storage mechanisms. This design enhances the electrochemical potential windows and the energy density of the fabricated cell. Electrochemical results show that the fabricated cell not only shows a 44.1 % higher capacity than conventional LIBs. It displays a stable cycle life across a wide climate temperature range from − 20 to 25 °C, with a capacity retention rate of 86 % after 600 cycles at 100 mA g −1 . This study demonstrates the critical role of doping graphite with N and P to improve the electrochemical performance of graphite in deep charge/discharge, providing a valuable strategy for developing cathode materials in dual-ion batteries.
研究领域:
材料科学
·
能源存储技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
·
2024
·
IF 4.2
Min Yuan,Ke Huang,Dongqing Dai,Hongfei Yin,Wei Zhao,Yixin Jiang,Yahui Feng
The integration of heterogeneous photocatalysts has emerged as a promising approach to boost the effectiveness of photocatalytic reactions for hydrogen evolution. In this study, we explore the synergistic effects of Ti 3+ -TiO 2 /P-doped g-C 3 N 4 heterojunctions on the enhancement of visible light-induced hydrogen generation efficiency. The photocatalytic hydrogen evolution performance of the as-prepared TPCN100 (280.38 μmol g −1 h −1 ) surpasses that of pristine P-doped g-C 3 N 4 (34.89 μmol g −1 h −1 ) and Ti 3+ -TiO 2 (39.71 μmol g −1 h −1 ) by factors of 8.0 and 7.1 respectively. Through a comprehensive investigation of the structural, electronic, and photocatalytic properties, the underlying mechanisms accountable for the observed enhancement in efficiency within the heterojunction system were elucidated. Based on the in-situ X-ray photoelectron spectrometer (XPS) examination, measurement of band edge, and electron paramagnetic resonance (EPR) analysis, the S-scheme photocatalytic mechanism was proposed. The integration of Ti 3+ -TiO 2 and P-doped g-C 3 N 4 offers new insights into the design of advanced photocatalytic materials for sustainable energy applications.
研究领域:
材料科学
·
能源化学
·
环境科学
✓ 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）