ADVANCED FUNCTIONAL MATERIALS
·
2023
·
IF 19
Peng-Fang Zhang,Jia-Hui Li,Shao-Jian Zhang,Da-Cheng Li,Su-Yuan Zeng,Shu-Ling Xu,Qing-Xia Yao,Ling-Yang Liu,Lei Ding,Heng-Xiang Li,Yi-Yang Hu,Jun-Tao Li,Yao Zhou
Zn–iodine (I 2 ) battery, as a promising energy storage device, especially under high I 2 loading, is harassed by the shuttle effect of the soluble polyiodide intermediates. Herein, the bifunctional role of 2D carbon nanosponge with rich P-dopant (4.2 at%) and large specific surface area (1966 m 2 g −1 ) in anchoring I 2 /I x − ( x = 1, 3 or 5) and catalyzing their mutual conversion is reported. Both experiment and computational results reveal the transfer of electrons from the P-doped site to iodine species, showing strong interfacial interaction. When being used as a host, it possesses high specific capture capacity for I 2 (3.34 g iodine g −1 or 1.6 mg iodine m −2 ) and I x − (6.12 g triiodide g −1 or 3.1 mg triiodide m −2 ), which thus effectively suppresses the shuttle effect, supported by in situ UV–vis and Raman spectra. In addition to the strong interfacial interaction that favors iodine conversion, the P-doped sites can also catalyze the conversion of I 5 − to I 2 , which is the rate-determining step. Consequently, Zn–I 2 batteries under a high I 2 content (70 wt%) deliver high specific capacity (220.3 mAh g −1 ), superior Coulombic efficiency (>99%), and low self-discharge rate; moreover, they can also operate steadily at 2 A g −1 with ignorable capacity decay for 10 000 cycles.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2025
·
IF 2.5
Chang Sun,Dehui Yang,Ye Li,Yaxi Shu,Huiyong Wang,Guoqing Zhuang,Baozhan Zheng,Juan Du,Yong Guo
Given the threat of radioactive iodine (RI) to the environment and human health, developing highly efficient and easily recoverable iodine absorbents in water is still a challenge in practical application. Herein, a novel porous magnetic carbon material was successfully prepared by annealing in-situ polymerized dopamine on Fe2O3 template, hollow porous carbon (H-PC) and bell-shaped magnetic porous carbon (BM-PC) can be controllably obtained by completely or partially removing Fe3O4 generated during annealing. Interestingly, H-PC exhibits outstanding iodine adsorption performance in water with a higher capacity of 945.97 mg/g due to its special hollow porous structure, which can not only increase the active sites in absorbent, but also effectively accelerate the mass transfer through its inner and outer surface. Moreover, the synthesized BM-PC with good magnetism can be easily recycled from solution, which has been proven with excellent stability and reusability for iodine adsorption and recovery in water, indicating its promising practical potential. Therefore, this research not only provides a novel perspective for effective treatment of RI pollution but also opens a new way for the sustainable recycling and practical utilization of absorbents.
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
Advanced Energy Materials
·
2024
·
IF 24.4
Dandan Li,Ying-Jie Zhu,Long Cheng,Sida Xie,Han-Ping Yu,Wei Zhang,Zhenming Xu,Ming-Guo Ma,Heng Li
Achieving both high iodine loading cathode and high Zn anode depth of discharge (DOD) is pivotal to unlocking the full potential of energy-dense Zn-I 2 batteries. However, this combination exacerbates the detrimental shuttle effect of polyiodide intermediates, significantly impairing the battery's reversibility and stability. Herein, this study reports an advanced high-loading iodine cathode (denoted as MX-AB@I) enabled by a multifunctional Ti 3 C 2 T x MXene modulator, which presents high stability and energy density in Zn-I 2 batteries. Through comprehensive experimental and theoretical analyses, the intrinsic regulating mechanisms are elucidated by which the MXene modulator effectively suppresses polyiodide shuttling, enhances iodine conversion kinetics, and dramatically improves Zn anode reversibility. With the aid of the MXene modulator, the MX-AB@I composite cathode achieves a high iodine mass loading of 23 mg cm −2 and realizes a practically high areal capacity of 4.0 mAh cm −2 . When paired with a thin Zn anode (10 µm), this configuration realizes a high Zn DOD of 78.7% and a high energy density of 171.3 Wh kg −1 , surpassing the majority of Zn-I 2 battery systems reported in the literature. This study presents an effective approach to designing high-loading iodine cathodes for Zn-I 2 batteries by leveraging MXene modulators to regulate critical electrochemical reaction processes.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Qian Zhao,Guangyuan Chen,Zeru Wang,Mei Jiang,Jingruolan Lin,Ling Zhang,Lin Zhu,Tao Duan
Effectively remove radioactive iodine from aqueous solutions is highly desirable for the purpose of radioactive liquid waste treatment. However, anionic radioiodine species do not prefer to sorb on minerals or inorganic sorbents . Herein, we report a stable millimeter-level bismuth-based polymer composite beads (δ-Bi 2 O 3 @PES) with fast removal kinetics and high adsorption capacities for both iodide (I − ) and iodate (IO 3 − ). Abundant micro-flower-like δ-Bi 2 O 3 was embedded in the porous interconnection network of polymer composite beads, making it an effective adsorbent for removing radioactive iodine. δ-Bi 2 O 3 @PES composite beads showed high adsorption capacities of 95.4 mg/g and 170.6 mg/g for I − and IO 3 − by forming an insoluble Bi 4 I 2 O 5 and BiOIO 3 phase, respectively, which also can selectively remove iodine anions in the presence of large excesses of NO 3 – and SO 4 2− . Furthermore, δ-Bi 2 O 3 @PES composite beads can highly reduce the Bi 3+ leaching of δ-Bi 2 O 3 powder after immersed in the acid solution and can be easily separated from the liquid after sorption . The performance of δ-Bi 2 O 3 @PES in dynamic column experiments indicates that economical Bi-based composite bead is a promising candidate sorbent for environmental remediation of actual iodine-contaminated water.
研究领域:
环境科学
·
核化学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Na Wang,Yuanyuan Ma,Yunzhen Chang,Liping Feng,Huichao Liu,Boqiong Li,Wanxi Li,Yanyun Liu,Gaoyi Han
Zinc-iodine batteries (ZIBs) have been recognized as a promising energy storage device due to their high energy density, low cost and environmental friendliness. However, the development of ZIBs is hindered by the shuttle effect of polyiodides which results in capacity degradation and poor cycling performance. Inspired by the ability of starch to form inclusion compounds with iodine, we propose to use a starch gel on the cathode to suppress the shuttle of polyiodides. Herein, porous carbon is utilized as a host for iodine species and provides an excellent conductive network, while starch gel is used as another host to suppress polyiodides shuttle, resulting in improved battery performance. The test results demonstrate that the conversion between I − /I 2 /I 3 − in the cathode and the effective inclusion role of starch suppress the shuttle of polyiodides during the charging process. Meanwhile, based on the electrochemical tests and theoretical DFT calculations, it is found that starch has a stronger ability to adsorb polyiodides compared to carbon materials, which enables effective confinement of polyiodides. The ZIBs used the cathode with starch gel exhibit high coulombic efficiency (>95 % at 0.2 A/g) and low self-discharge (86.8 % after resting for 24 h). This strategy is characterized by its simplicity, low cost and high applicability, making it significant for the advancement of high-performance ZIBs.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Menghan Sun,Lishan Wei,Jinsong Peng,Gongyuan Zhao,Dengfeng Yu,Chunxia Chen
Aqueous Zn–I 2 batteries have garnered significant attention due to their high abundance and safety. However, the sluggish iodine redox kinetics and undesirable shuttle effect severely hindered their wider application. Herein, dual doping of B and N provides an effective strategy to modulates chemical properties and electron distributions of carbon hosts, resulting in high performance of Zn–I 2 batteries. The local electron redistribution enhances electron density at the Fermi level of the carbon host, thereby improving intrinsic conductivity. Additionally, combining experiments and DFT calculations reveal that N B center sites are benefited in suppressing shuttle effects, strengthened interactions with iodide species, and facilitated catalytic conversion kinetics. Notably, Zn–I 2 batteries fabricated with B and N co-doped porous carbon (BNAC) achieve an outstanding capacity (231.7 mAh g −1 at 0.1 A g −1 ) and excellent cycling stability (capacitance retention of 98 % after 4,500 cycles). This study not only provides valuable insights into the design of advanced carbon materials but also clarifies the active sites in B/N co-doped carbon materials, offering guidance for the rational design of carbon-based electrode materials for Zn–I 2 batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Environmental Science-Water Research & Technology
·
2024
·Vol. 10
·期 3
·718-728
·
IF 3.5
Chen-Yan Hu,Ling Xu,Yi-Li Lin,Cong Li
Iodinated X-ray contrast media (ICM) are widely used in medical imaging due to their stable properties, but they cannot be effectively removed in wastewater treatment plants (especially hospital wastewater). Therefore, ICM have been widely detected in aquatic environments and may gradually accumulate and cause adverse effects to the creatures. In this paper, the degradation characteristics of two most commonly detected ICM, iohexol and diatrizoate, by ultraviolet/persulfate (UV/PS) were investigated. UV/PS can effectively degrade both ICM, with pseudo-first-order rate constants (kobs) of 0.3641 min−1 for iohexol and 0.3511 min−1 for diatrizoate, and SO4·− played a major role in UV/PS degradation of both ICM. The presence of I−, Cl−, Br−, humic acid (HA), and alkaline conditions inhibited the degradation efficiency of both ICM. Less I-DBPs were formed from iohexol at low PS and high Br− concentrations, but from diatrizoate at high PS and Br− concentrations. The degradation pathways of iohexol and diatrizoate in the UV/PS process were proposed separately according to the detected degradation intermediates. This study can provide an essential theoretical basis for the UV/PS degradation of the two ICM.
研究领域:
环境科学
·
医学
✓ 已验证
产品关联
DOI
高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
·
2023
·
IF 5.2
Yingyi Zhao,Wenjun Lu,Yinan Zhang,Xianmin Liu,Baiwang Sun
The proper management of radioactive iodine waste generated from nuclear energy has become one of the challenges in the sustainable development of nuclear power. With the continuous development of POPs materials, their high-efficiency iodine adsorption performance has been demonstrated to be related to the material's structural units and porous structure. In light of this, three two-dimensional porous organic polymers were synthesized using environmentally friendly non-metallic catalyzed coupling reactions. Their excellent chemical stability and nitrogen-rich porous structure endowed them with the ability to exhibit outstanding capture performance and recyclability in various media. Its iodine adsorption performance reached 3.81 g/g, 3.55 g/g and 3.19 g/g respectively. The research results provide a potential pathway for the design and synthesis of organic porous polymers with good chemical stability and iodine adsorption performance, showcasing the significant potential of POP-PDTE, POP-PDTK, and POP-PDTB in capturing radioactive pollutants.
研究领域:
材料科学
·
环境科学
·
核能工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Hong Qu,Lianbao Liang,Jin Fang,Yiyu Chen,Jizhuang Wang,Guihua Jiang,Sulian Su,Lifeng Hang
Flexible zinc-iodine batteries (FZIBs) are promising flexible power supply devices due to their intrinsic safety and high theoretical energy density. However, the relatively low mass loading and the simultaneous shuttling phenomenon of the active iodine species in the iodine cathode jointly result in limited areal capacity and areal energy density of the FZIBs. Herein, we construct a cathode-electrolyte interface (CEI) layer based on bio-sustainable positively charged chitosan (p-Chitosan) on the iodine cathode to locate iodine species and restrict the polyiodide shuttling effect through strong electrochemical interaction. Under the ultra-high iodine loading of 14.6 mg cm −2 , the FZIBs delivered a high specific capacity of 209.1 mAh g −1 at a current density of 0.2 A g −1 , thus presenting a high areal capacity (2.56 mAh cm −2 ) and high areal energy density (2.96 mWh cm −2 ). Additionally, the capacity of the flexible battery based on the p-Chitosan CEI layer remains nearly unchanged when bending at various angles of 0°, 30°, 60°, 90°, 120°, and 150°, respectively. The flexible battery bending at an angle of 60° can stably operate over 1100 cycles, suggesting its potential as a flexible power supply.
研究领域:
材料科学
·
能源技术
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2018
·
IF 6.14
Dong Wang,Junshuang Zhou,Junkai Li,Yuanzhe Wang,Li Hou,Faming Gao
Because of its high density, a carbon microsphere is a good candidate for ultrahigh volumetric capacity electrode materials. We find that the synergistic effects of nitrogen and iodine element can tremendously improve the carbon electrode capacity. Here, we present a high volumetric capacity anode consisting of iodine and nitrogen codoping carbon microspheres synthesized by a low-temperature solvothermal route. A reversible capacity of 1418 mAh cm–3, which is much larger than that of commercial graphitic carbon anode, is achieved at a current density of 0.05 mA cm–2 by using these carbon microspheres as anode material. After 100 charge–discharge cycles at 0.1 mA cm–2 and 500 charge–discharge cycles at 1 mA cm–2, carbon microspheres retained volumetric capacities of 1335 and 1090 mAh cm–3, respectively
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2025
·
IF 11.3
Chenyu Liu,Hanyu Wu,Yuqing Wang,Lili Li,Jiang Zhou,Jiewei Wu,Peng Lin,Muyi Ni
Iodine is the primary fission product of the lead-cooled fast reactor (LFR) and is often used as an early environmental indicator for severe accidents. Understanding radioactive iodine behavior is crucial for effective radiation hazard control under accident conditions. In this study, the adsorption and deposition mechanisms of iodine (evaporated from lead-bismuth eutectic) onto fused silica and 316 L stainless steel (SS316L) under a dry argon atmosphere were investigated using a high-temperature adsorption testing platform (HATP), which was specifically designed and implemented based on thermochromatography and thermosublimatography. The adsorption enthalpies were determined by Monte Carlo simulations, yielding values of −145 ± 10 kJ/mol and −148 ± 10 kJ/mol (as a peak deposition temperature of 448 ± 11°C and 440 ± 12°C) for fused silica and SS316L, respectively. Further thermodynamic calculations indicated that PbI 2 (g) was the predominant iodine species under experimental conditions. These results provide insights into the chemical speciation and migration of radioactive iodine released from LFR, which is crucial for improving safety assessments and nuclear emergency response strategies.
研究领域:
核工程
·
放射化学
·
环境安全
·
材料科学
·
热力学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMISTRY-A EUROPEAN JOURNAL
·
2025
·
IF 3.7
Zhaoqi Zheng,Yan Hong,Peixu Zheng,Wei Luo,Jianhua Qiu,Liping Jiang
Graphical This study presents a strategy to synergistically enhance iodine capture by flexible cyclictriphosphonitrile-based covalent organic frameworks(COFs) (CTP-X-COF, X = PDA, ODA, BPY, DPT). The adsorption capacities of CTP-PDA-COF, CTP-ODA-COF, CTP-BPY-COF, and CTP-DPT-COF for iodine vapor are 4.65 g g −1 , 4.18 g g −1 , 2.38 g g −1 , and 3.57 g g −1 , respectively. The development of highly efficient materials for trapping radioactive iodine is essential for the safe use of nuclear energy. Herein, we present a strategy to synergistically enhance iodine capture by exploiting the flexible building blocks with the affinity properties of electrically rich heteroatoms by combining the cyclic triphosphonitrile derivative with amine linkers of different molecular lengths and constructing triangular pore-structured flexible cyclotriphosphonitrile-based covalent organic frameworks. A series of cyclotriphosphonitrile-based COFs (CTP-X-COF, X = PDA, ODA, BPY, DPT) with triangular pore topology were synthesized using CTP-6 as the node and connection point of p-phenylenediamine (PDA), 4,4-diaminodiphenyl ether (ODA), 5,5-diamino2,2-bipyridine (BPY), and 4,4-diaminotribiphenyl (DPT) with different molecular lengths. It was found that the adsorption capacities of CTP-PDA-COF, CTP-ODA-COF, CTP-BPY-COF, and CTP-DPT-COF for iodine vapor were 4.65 g g −1 , 4.18 g g −1 , 2.38 g g −1 , and 3.57 g g −1 , respectively. The results showed that the adsorption capacities of CTP-PDA-COF, CTP-ODA-COF, CTP-BPY-COF, and CTP-DPT-COF for iodine in cyclohexane were 281.50 mg g −1 , 221.67 mg g −1 , 161.14 mg g −1 , and 222.67 mg g −1 , respectively. It was found that the four COFs adsorbed iodine in cyclohexane solution was a mixed adsorption process with chemical adsorption playing a predominant role and physical adsorption as an auxiliary mechanism.
研究领域:
材料科学
·
核能安全
·
环境化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）