{"title":"碳纳米管复合镍掺杂锰基普鲁士白的钠离子存储性能","authors":"Binbin Ding, Hu Dai, Weilai Xu, Yuxi Chen, Xiaohong Xia, Qunli Tang","doi":"10.1007/s10008-025-06298-x","DOIUrl":null,"url":null,"abstract":"<div><p>Prussian white and its analogues are regarded as promising cathode candidates for sodium-ion batteries because of their high capacity, facile synthesis and abundant resource. However, their cyclic lifespans are limited. One of the main reasons is the complex phase transformations of their crystal structure during the insertion/desertion of sodium ions. Herein, nickel-doped manganese-based Prussian white composited with carbon nanotubes were synthesized with the aim to stabilize crystal structure during charging/discharging and consequently enhance cyclic performance. Structural and chemical characterizations indicate that the doped nickel atoms occupy lattice sites of manganese. Electrochemical evaluations indicate that the obtained cubic-structured Na<sub>1.55</sub>Mn<sub>0.94</sub>Ni<sub>0.06</sub>[Fe(CN)<sub>6</sub>]<sub>0.92</sub>∙2.74H<sub>2</sub>O/carbon nanotubes delivers a reversible capacity of 98 mAh g<sup>−1</sup> with an initial coulombic efficiency of 97% at 1C and still maintains 64 mAh g<sup>−1</sup> after 400 cycles. Serial ex situ X-ray diffractions disclose that the nickel-doped manganese-based Prussian white maintains its cubic structure during the insertion/desertion of the sodium ions. No phase transformation is observed except a little variation of the lattice constants. The structural stability enables high cyclic stability. Nickel doping and carbon nanotube composition are efficient ways to improve the electrochemical performance of the manganese-based Prussian white for sodium-ion batteries.</p><h3>Graphical abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 9","pages":"4005 - 4014"},"PeriodicalIF":2.6000,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Sodium ion-storage performance of nickel-doped manganese-based Prussian white composited with carbon nanotubes\",\"authors\":\"Binbin Ding, Hu Dai, Weilai Xu, Yuxi Chen, Xiaohong Xia, Qunli Tang\",\"doi\":\"10.1007/s10008-025-06298-x\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Prussian white and its analogues are regarded as promising cathode candidates for sodium-ion batteries because of their high capacity, facile synthesis and abundant resource. However, their cyclic lifespans are limited. One of the main reasons is the complex phase transformations of their crystal structure during the insertion/desertion of sodium ions. Herein, nickel-doped manganese-based Prussian white composited with carbon nanotubes were synthesized with the aim to stabilize crystal structure during charging/discharging and consequently enhance cyclic performance. Structural and chemical characterizations indicate that the doped nickel atoms occupy lattice sites of manganese. Electrochemical evaluations indicate that the obtained cubic-structured Na<sub>1.55</sub>Mn<sub>0.94</sub>Ni<sub>0.06</sub>[Fe(CN)<sub>6</sub>]<sub>0.92</sub>∙2.74H<sub>2</sub>O/carbon nanotubes delivers a reversible capacity of 98 mAh g<sup>−1</sup> with an initial coulombic efficiency of 97% at 1C and still maintains 64 mAh g<sup>−1</sup> after 400 cycles. Serial ex situ X-ray diffractions disclose that the nickel-doped manganese-based Prussian white maintains its cubic structure during the insertion/desertion of the sodium ions. No phase transformation is observed except a little variation of the lattice constants. The structural stability enables high cyclic stability. 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引用次数: 0
摘要
普鲁士白及其类似物因其容量大、合成方便、资源丰富等优点，被认为是钠离子电池极具潜力的阴极材料。然而，它们的循环寿命是有限的。其中一个主要原因是在钠离子的插入/脱离过程中，其晶体结构发生了复杂的相变。本文制备了掺杂镍的锰基普鲁士白与碳纳米管复合材料，旨在稳定充放电过程中的晶体结构，从而提高循环性能。结构和化学表征表明，掺杂的镍原子占据了锰的晶格位。电化学评价表明，得到的立方结构Na1.55Mn0.94Ni0.06[Fe(CN)6]0.92∙2.74H2O/碳纳米管在1C下的可逆容量为98 mAh g−1，初始库仑效率为97%，循环400次后仍保持64 mAh g−1。一系列非原位x射线衍射表明，在钠离子的插入/脱离过程中，掺杂镍的锰基普鲁士白保持其立方结构。除了晶格常数有少许变化外，未观察到相变。结构稳定性使高循环稳定性成为可能。镍掺杂和碳纳米管组成是提高钠离子电池锰基普鲁士白电化学性能的有效途径。图形抽象
Sodium ion-storage performance of nickel-doped manganese-based Prussian white composited with carbon nanotubes
Prussian white and its analogues are regarded as promising cathode candidates for sodium-ion batteries because of their high capacity, facile synthesis and abundant resource. However, their cyclic lifespans are limited. One of the main reasons is the complex phase transformations of their crystal structure during the insertion/desertion of sodium ions. Herein, nickel-doped manganese-based Prussian white composited with carbon nanotubes were synthesized with the aim to stabilize crystal structure during charging/discharging and consequently enhance cyclic performance. Structural and chemical characterizations indicate that the doped nickel atoms occupy lattice sites of manganese. Electrochemical evaluations indicate that the obtained cubic-structured Na1.55Mn0.94Ni0.06[Fe(CN)6]0.92∙2.74H2O/carbon nanotubes delivers a reversible capacity of 98 mAh g−1 with an initial coulombic efficiency of 97% at 1C and still maintains 64 mAh g−1 after 400 cycles. Serial ex situ X-ray diffractions disclose that the nickel-doped manganese-based Prussian white maintains its cubic structure during the insertion/desertion of the sodium ions. No phase transformation is observed except a little variation of the lattice constants. The structural stability enables high cyclic stability. Nickel doping and carbon nanotube composition are efficient ways to improve the electrochemical performance of the manganese-based Prussian white for sodium-ion batteries.
期刊介绍：
The Journal of Solid State Electrochemistry is devoted to all aspects of solid-state chemistry and solid-state physics in electrochemistry.
The Journal of Solid State Electrochemistry publishes papers on all aspects of electrochemistry of solid compounds, including experimental and theoretical, basic and applied work. It equally publishes papers on the thermodynamics and kinetics of electrochemical reactions if at least one actively participating phase is solid. Also of interest are articles on the transport of ions and electrons in solids whenever these processes are relevant to electrochemical reactions and on the use of solid-state electrochemical reactions in the analysis of solids and their surfaces.
The journal covers solid-state electrochemistry and focusses on the following fields: mechanisms of solid-state electrochemical reactions, semiconductor electrochemistry, electrochemical batteries, accumulators and fuel cells, electrochemical mineral leaching, galvanic metal plating, electrochemical potential memory devices, solid-state electrochemical sensors, ion and electron transport in solid materials and polymers, electrocatalysis, photoelectrochemistry, corrosion of solid materials, solid-state electroanalysis, electrochemical machining of materials, electrochromism and electrochromic devices, new electrochemical solid-state synthesis.
The Journal of Solid State Electrochemistry makes the professional in research and industry aware of this swift progress and its importance for future developments and success in the above-mentioned fields.
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