Enabling High Capacity and Stable Sodium Capture in Simulated Saltwater by Highly Crystalline Prussian Blue Analogues Cathode DOI Creative Commons
Shiyong Wang, Yuhao Lei, Changping Li

et al.

Small Structures, Journal Year: 2024, Volume and Issue: unknown

Published: June 10, 2024

Prussian blue analogues (PBAs) are considered as promising cathode materials for capacitive deionization (CDI) technology due to their 3D open‐frame structure and tunable redox active sites. However, the inevitably high content of [Fe(CN) 6 ] vacancies in crystal results a low salt adsorption capacity (SAC) poor recycling performance. Herein, high‐salt nano‐reaction system is established by mechanochemical ball milling, enabling preparation variety highly crystallized PBAs (metal hexacyanoferrate, MHCF‐B‐170, M = Ni, Co, or Cu) with (0.05–0.06 per formula unit). The reduction lattice not only strengthens conductivity promotes rapid transfer electrons, but also reduces migration energy barrier accelerates fast reversible diffusion Na + ions. structural characterization method theoretical simulation demonstrates excellent reversibility stability MHCF‐B‐170 during CDI process. Impressively, NiHCF‐B‐170 exhibits performance, characterized an exceptionally SAC up 101.4 mg g −1 at 1.2 V, remarkable cycle no significant degradation observed even after 100 cycles. This Fe(CN) expected be competitive candidate material electrodes.

Language: Английский

Ti3C2‐MXene Partially Derived Hierarchical 1D/2D TiO2/Ti3C2 Heterostructure Electrode for High‐Performance Capacitive Deionization DOI Creative Commons
Ningning Liu, Lanlan Yu, Baojun Liu

et al.

Advanced Science, Journal Year: 2022, Volume and Issue: 10(2)

Published: Nov. 28, 2022

Constructing faradaic electrode with superior desalination performance is important for expanding the applications of capacitive deionization (CDI). Herein, a simple one-step alkalized treatment in situ synthesis 1D TiO2 nanowires on surface 2D Ti3 C2 nanosheets, forming -MXene partially derived hierarchical 1D/2D /Ti3 heterostructure as cathode reported. Cross-linked help avoid layer stacking while acting protective against contact internal dissolved oxygen water. The inner MXene nanosheets cross over can provide abundant active adsorption sites and short ion/electron diffusion pathways. . Density functional theory calculations demonstrated that consecutively inject electrons into , indicating high electrochemical activity Benefiting from structure synergistic effect presents favorable hybrid CDI performance, capacity (75.62 mg g-1 ), fast salt rate (1.3 min-1 satisfactory cycling stability, which better than most published MXene-based electrodes. This study provides feasible partial derivative strategy construction to overcome restrictions CDI.

Language: Английский

Citations

84
Design of Uniform Hollow Carbon Nanoarchitectures: Different Capacitive Deionization between the Hollow Shell Thickness and Cavity Size DOI Creative Commons

Yijian Tang,

Jiani Ding,

Wenxuan Zhou

et al.

Advanced Science, Journal Year: 2023, Volume and Issue: 10(9)

Published: Jan. 19, 2023

Carbon-based materials with high capacitance ability and fast electrosorption rate are ideal electrode in capacitive deionization (CDI). However, traditional carbon have structural limitations electrochemical desalination performance due to the low poor transmission channel of prepared electrodes. Therefore, reasonable design material structure is great importance for achieving excellent CDI properties. Here, uniform hollow different morphologies (hollow nanospheres, nanorods, nano-pseudoboxes, nano-ellipsoids, nano-capsules, nano-peanuts) reasonably designed through multi-step template method calcination polymer precursors. Hollow nanospheres nano-pseudoboxes exhibit better higher salt adsorption capacity (SAC) their stable carbonaceous during calcination. Moreover, effects thickness shell size cavity on also studied. HCNSs-0.8 thicker (≈20 nm) larger (≈320 shows best SAC value 23.01 mg g-1 its large specific surface area (1083.20 m2 ) rich pore distribution. These nanoarchitectures functional properties potential applications electrochemistry related fields.

Language: Английский

Citations

58
Hydrophobicity Tailoring of Ferric Covalent Organic Framework/MXene Nanosheets for High‐Efficiency Nitrogen Electroreduction to Ammonia DOI Creative Commons
Hongming He,

Hao‐Ming Wen,

Hongkai Li

et al.

Advanced Science, Journal Year: 2023, Volume and Issue: 10(15)

Published: March 30, 2023

Abstract Electrocatalytic nitrogen reduction reaction (NRR) represents a promising sustainable approach for NH 3 synthesis. However, the poor NRR performance of electrocatalysts is great challenge at this stage, mainly owing to their low activity and competitive hydrogen evolution (HER). Herein, 2D ferric covalent organic framework/MXene (COF‐Fe/MXene) nanosheets with controllable hydrophobic behaviors are successfully prepared via multiple‐in‐one synthetic strategy. The boosting hydrophobicity COF‐Fe/MXene can effectively repel water molecules inhibit HER enhanced performances. By virtue ultrathin nanostructure, well‐defined single Fe sites, enrichment effect, high hydrophobicity, 1H,1H,2H,2H‐perfluorodecanethiol modified hybrid shows yield 41.8 µg h −1 mg cat. Faradaic efficiency 43.1% −0.5 V versus RHE in 0.1 m Na 2 SO 4 solution, which vastly superior known Fe‐based catalysts even noble metal catalysts. This work provides universal strategy design synthesis non‐precious high‐efficiency N .

Language: Английский

Citations

42
Engineering strategies toward electrodes stabilization in capacitive deionization DOI
Ming Gao, Wenqing Chen

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 505, P. 215695 - 215695

Published: Feb. 1, 2024

Language: Английский

Citations

40
From hemostasis to proliferation: Accelerating the infected wound healing through a comprehensive repair strategy based on GA/OKGM hydrogel loaded with MXene@TiO2 nanosheets DOI
Xingan Qiu,

Linxia Nie,

Pei Liu

et al.

Biomaterials, Journal Year: 2024, Volume and Issue: 308, P. 122548 - 122548

Published: March 27, 2024

Language: Английский

Citations

38
Kinetic-Thermodynamic Promotion Engineering toward High-Density Hierarchical and Zn-Doping Activity-Enhancing ZnNiO@CF for High-Capacity Desalination DOI Creative Commons
Jie Ma, Siyang Xing, Yabo Wang

et al.

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: March 4, 2024

Despite the promising potential of transition metal oxides (TMOs) as capacitive deionization (CDI) electrodes, actual capacity TMOs electrodes for sodium storage is significantly lower than theoretical capacity, posing a major obstacle. Herein, we prepared kinetically favorable Zn

Language: Английский

Citations

24
Entropy Engineering Constrain Phase Transitions Enable Ultralong‐life Prussian Blue Analogs Cathodes DOI Creative Commons
Yuhao Lei, Shiyong Wang,

Lin Zhao

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(28)

Published: April 26, 2024

Abstract Prussian blue analogs (PBAs) are considered as one of the most potential electrode materials in capacitive deionization (CDI) due to their unique 3D framework structure. However, practical applications suffer from low desalination capacity and poor cyclic stability. Here, an entropy engineering strategy is proposed that incorporates high‐entropy (HE) concept into PBAs address unfavorable multistage phase transitions during CDI desalination. By introducing five or more metals, which share N coordination site, hexacyanoferrate (HE‐HCF) constructed, thereby increasing configurational system above 1.5R placing it category. As a result, developed HE‐HCF demonstrates remarkable cycling performance, with retention rate over 97% after undergoing 350 ultralong‐life cycles adsorption/desorption. Additionally, exhibits high 77.24 mg g −1 at 1.2 V. Structural characterization theoretical calculation reveal not only helps restrain transition strengthen structural stability, but also optimizes Na + ions diffusion path energy barrier, accelerates reaction kinetics thus improves performance. This research introduces new approach for designing electrodes cost, long‐lasting durability applications.

Language: Английский

Citations

21
Reactive P and S co-doped porous hollow nanotube arrays for high performance chloride ion storage DOI Creative Commons
Siyang Xing, Ningning Liu,

Qiang Li

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: June 10, 2024

Language: Английский

Citations

20
Enhanced Capacitive Deionization of Hollow Mesoporous Carbon Spheres/MOFs Derived Nanocomposites by Interface‐Coating and Space‐Encapsulating Design DOI Creative Commons

Yijian Tang,

Yuxin Shi,

Yichun Su

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(39)

Published: Aug. 14, 2024

Abstract Exploring new carbon‐based electrode materials is quite necessary for enhancing capacitive deionization (CDI). Here, hollow mesoporous carbon spheres (HMCSs)/metal‐organic frameworks (MOFs) derived (NC(M)/HMCSs and NC(M)@HMCSs) are successfully prepared by interface‐coating space‐encapsulating design, respectively. The obtained NC(M)/HMCSs NC(M)@HMCSs possess a hierarchical nanoarchitecture with abundant nitrogen doping, high specific surface area, meso‐/microporous pores. These merits conducive to rapid ion diffusion charge transfer during the adsorption process. Compared NC(M)/HMCSs, exhibit superior electrochemical performance due their better utilization of internal space carbon, forming an interconnected 3D framework. In addition, introduction Ni ions more synergistic effect between ZIF(M)‐derived N‐doped shell compared other (Mn, Co, Cu ions). resultant Ni‐1‐800‐based CDI device exhibits excellent salt capacity (SAC, 37.82 mg g −1 ) good recyclability. This will provide direction MOF nanoparticle‐driven assembly strategy application CDI.

Language: Английский

Citations

20
Lithiophilic V2CTx/MoO3 Hosts with Electronic/Ionic Dual Conductive Gradients for Ultrahigh‐Rate Lithium Metal Anodes DOI Open Access
Wei Yao, Zhiwei Chen, Xiao Zhang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: July 24, 2024

Abstract Lithium (Li) metal is considered as a promising anode material for high‐energy batteries; yet, its practical application hindered by uncontrolled Li dendrite growth, especially at high rate. Herein, dual conductive gradient V 2 CT x /MoO 3 (DG‐V ) host that integrates electronic/ionic gradients and lithiophilicity prepared layer‐by‐layer assembly dendrite‐free anodes. Gradient LiF deriving from different amount of endows good ionic gradient; while, MoO regarded spacer to avoid the restacking , increasing space deposition. The effectively optimize current density + flux distribution bottom, achieving fast reduction “bottom–up” deposition mode. Meanwhile, lithiophilic guide homogeneous growth. As result, symmetrical half‐cells based on DG‐V @Li anodes conduct 700 h 5 mAh cm −2 20 mA . @Li||LiFePO 4 full‐cells maintain capacity retention 85.4% after 1350 cycles C. Remarkably, @Li||LiNi 0.6 Co 0.2 Mn O can run 150 with 80.6% even harsh conditions. well‐adjusted materials structures both properties will bring inspiration novel design other batteries.

Language: Английский

Citations

18