Rare Metals最新文献_第9页

Novel high-entropy ultra-high temperature ceramics with enhanced ablation resistance 耐烧蚀性更强的新型高熵超高温陶瓷

IF 9.6 1区材料科学

Rare Metals Pub Date : 2024-07-22 DOI: 10.1007/s12598-024-02904-5

Pan Zhang, Xiong-Jun Liu, Guang-Yu He, Fu-Kuo Chiang, Hui Wang, Yuan Wu, Sui-He Jiang, Xiao-Bin Zhang, Zhao-Ping Lu

{"title":"Novel high-entropy ultra-high temperature ceramics with enhanced ablation resistance","authors":"Pan Zhang, Xiong-Jun Liu, Guang-Yu He, Fu-Kuo Chiang, Hui Wang, Yuan Wu, Sui-He Jiang, Xiao-Bin Zhang, Zhao-Ping Lu","doi":"10.1007/s12598-024-02904-5","DOIUrl":"10.1007/s12598-024-02904-5","url":null,"abstract":"<div><p>Ultra-high temperature ceramics (UHTCs) offer great potential for applications in extreme service environments, such as hypersonic vehicles, rockets and re-entry spacecraft. However, the severe ablation caused by high-speed heat flow scouring and high-temperature oxidation limits the engineering application of UHTCs. In this work, we report a novel high-entropy UHTC (Ti<sub>0.2</sub>Zr<sub>0.2</sub>V<sub>0.2</sub>Nb<sub>0.2</sub>Cr<sub>0.2</sub>)(C<sub>0.5</sub>N<sub>0.5</sub>), which exhibits superior ablation resistance and light weight compared with traditional UHTCs. Specifically, at a temperature of 2650 K, the mass ablation rate of the material was measured as 1.025 × 10<sup>−2</sup> g·s<sup>−1</sup>, and the density was calculated to be 6.7 g·cm<sup>−3</sup>. The impressive ablation resistance of (Ti<sub>0.2</sub>Zr<sub>0.2</sub>V<sub>0.2</sub>Nb<sub>0.2</sub>Cr<sub>0.2</sub>)(C<sub>0.5</sub>N<sub>0.5</sub>) is attributed to the incorporation of a self-healing mechanism, which is associated with the in-situ formation of a medium-entropy oxide (TiVCr)O<sub>2</sub> during the ablation process. The medium-entropy oxide can seal pores and cracks to retard oxygen diffusion and prevent the material from fragmentation, thereby resulting in outstanding ablation resistance.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"43 12","pages":"6559 - 6570"},"PeriodicalIF":9.6,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrochemically activated metal oxide sites at Rh–Ni2P electrocatalyst for efficient alkaline hydrogen evolution reaction 电化学活化的 Rh-Ni2P 电催化剂金属氧化物位点用于高效碱性氢进化反应

IF 9.6 1区材料科学

Rare Metals Pub Date : 2024-07-22 DOI: 10.1007/s12598-024-02903-6

Cheng Peng, Jia-Yi Li, Luo-Xiang Shi, Ming-Yue Wang, Wen-Hai Wang, Tao Cheng, Pei-Zhi Yang, Hao Yang, Kong-Lin Wu

{"title":"Electrochemically activated metal oxide sites at Rh–Ni2P electrocatalyst for efficient alkaline hydrogen evolution reaction","authors":"Cheng Peng, Jia-Yi Li, Luo-Xiang Shi, Ming-Yue Wang, Wen-Hai Wang, Tao Cheng, Pei-Zhi Yang, Hao Yang, Kong-Lin Wu","doi":"10.1007/s12598-024-02903-6","DOIUrl":"10.1007/s12598-024-02903-6","url":null,"abstract":"<div><p>Highly efficient hydrogen evolution reaction (HER) electrocatalysts play a crucial part in generating green hydrogen. Herein, an electrochemical activation approach was applied to design 6.7 Rh–Ni<sub>2</sub>P-800CV electrocatalysts in alkaline electrolytes. The results confirm that the generation of metal oxide sites through the electrochemical activation strategy can effectively improve the intrinsic activity of 6.7 Rh–Ni<sub>2</sub>P-800CV. The density functional calculations further confirm that metal oxide active sites are favorable for H<sub>2</sub>O adsorption and activation and H* adsorption/desorption. The 6.7 Rh–Ni<sub>2</sub>P-800CV possesses significantly enhanced HER performance with low overpotential (25 mV at 10 mA·cm<sup>−2</sup>), small Tafel (60 mV·dec<sup>−1</sup>) and robust stability in 1.0 M KOH, outperforming Pt/C and 6.7 Rh–Ni<sub>2</sub>P counterparts. Meanwhile, 6.7 Rh–Ni<sub>2</sub>P-800CV can even operate at a large current density (550 mA·cm<sup>−2</sup>) up to 90 h with an overpotential of 320 mV, which meets the requirements of industrial water splitting. What’s more, the overall water-splitting systems (6.7 Rh–Ni<sub>2</sub>P-800CV || 6.7 Rh–Ni<sub>2</sub>P-800CV) can be directly driven by the solar cell. This work highlights that electrochemical activation technology provides a robust avenue toward constructing efficient electrocatalysts for sustainable energy conversion.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"43 12","pages":"6416 - 6425"},"PeriodicalIF":9.6,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel Au(III) agent designed to inhibit tumor growth and metastasis through inducing immunogenic cell death 通过诱导免疫性细胞死亡抑制肿瘤生长和转移的新型金（III）制剂

IF 8.8 1区材料科学

Rare Metals Pub Date : 2024-07-22 DOI: 10.1007/s12598-024-02871-x

Wen-Juan Li, Shan-He Li, Xue-Yu Man, Gang Xu, Zhen-Lei Zhang, Yao Zhang, Hong Liang, Feng Yang

引用次数: 0

Structure deformation of Ni–Fe–Se enables efficient oxygen evolution via RE atoms doping Ni-Fe-Se 的结构变形可通过掺杂 RE 原子实现高效氧进化

IF 8.8 1区材料科学

Rare Metals Pub Date : 2024-07-22 DOI: 10.1007/s12598-024-02900-9

Hong-Rui Zhao, Cheng-Zong Yuan, Cong-Hui Li, Wen-Kai Zhao, Fu-Ling Wu, Lei Xin, Hong Yin, Shu-Feng Ye, Xiao-Meng Zhang, Yun-Fa Chen

{"title":"Structure deformation of Ni–Fe–Se enables efficient oxygen evolution via RE atoms doping","authors":"Hong-Rui Zhao, Cheng-Zong Yuan, Cong-Hui Li, Wen-Kai Zhao, Fu-Ling Wu, Lei Xin, Hong Yin, Shu-Feng Ye, Xiao-Meng Zhang, Yun-Fa Chen","doi":"10.1007/s12598-024-02900-9","DOIUrl":"https://doi.org/10.1007/s12598-024-02900-9","url":null,"abstract":"<p>The development of cost-effective and highly stable electrocatalysts for oxygen evolution reactions holds paramount importance in practical hydrogen production. Herein, we present a novel self-supported electrode comprising Ce-doped Ni–Fe–Se nanosheets grown on carbon cloth (Ni–Fe–Ce–Se/CC). This electrode was synthesized through a selenylation process, utilizing Ni–Fe-Ce-layered double hydroxide/carbon cloth (Ni–Fe–Ce LDH/CC) as the precursor. Notably, Ni–Fe–Ce–Se/CC electrode demonstrates remarkable performance, requiring a low overpotential of 300 mV to attain a current density of 100 mA· cm<sup>−2</sup> under harsh alkaline conditions. Furthermore, the electrode exhibits exceptional stability during continuous operation for 100 h. Insight into the underlying mechanisms was gained through a combination of experimental results and density functional theory calculations. Our findings reveal that Ce doping induces crystal structure deformation in Ni–Fe–Se and enhances electron enrichment around Ni atoms. This structural modification optimizes the adsorption energy of oxygen-based intermediates on the Ni–Fe–Se surface. This work offers a valuable strategy for regulating the electron transfer and adsorption capabilities of transition metal selenide electrocatalysts through RE atoms doping, opening new avenues for enhanced electrocatalytic performance.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"92 1","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low-temperature induced crystallographic orientation boosting Li storage performance of Na2MoO4·2H2O 低温诱导结晶取向提高 Na2MoO4-2H2O 的锂储存性能

IF 8.8 1区材料科学

Rare Metals Pub Date : 2024-07-22 DOI: 10.1007/s12598-024-02905-4

Jia-Qi Ma, Yan-Li Chen, Qiong Peng, Yun-Peng Qu, Jun-Fei Ding, Xiu Gong, Jing-Liang Yang, Xiao-Si Qi, Yun-Lei Zhou

{"title":"Low-temperature induced crystallographic orientation boosting Li storage performance of Na2MoO4·2H2O","authors":"Jia-Qi Ma, Yan-Li Chen, Qiong Peng, Yun-Peng Qu, Jun-Fei Ding, Xiu Gong, Jing-Liang Yang, Xiao-Si Qi, Yun-Lei Zhou","doi":"10.1007/s12598-024-02905-4","DOIUrl":"https://doi.org/10.1007/s12598-024-02905-4","url":null,"abstract":"<p>The design and development of high-performance anodes pose significant challenges in the construction of next-generation rechargeable lithium-ion batteries (LIBs). Sodium molybdate dihydrate (Na<sub>2</sub>MoO<sub>4</sub>·2H<sub>2</sub>O) has garnered increasing attention due to its cost-effectiveness, non-toxicity and earth abundance. To enhance the Li storage performance of Na<sub>2</sub>MoO<sub>4</sub>·2H<sub>2</sub>O, a crystallographic orientation regulation strategy is proposed in this work. Initially, density functional theory calculations are carried out to demonstrate that the (020) crystal plane of Na<sub>2</sub>MoO<sub>4</sub>·2H<sub>2</sub>O offers the lowest energy barrier for Li<sup>+</sup> migration. Subsequently, the preferred crystallographic orientation of Na<sub>2</sub>MoO<sub>4</sub>·2H<sub>2</sub>O crystal is tuned through a low-temperature recrystallization method. Furthermore, the microstructure and phase changes of Na<sub>2</sub>MoO<sub>4</sub>·2H<sub>2</sub>O during the lithiation/de-lithiation process are studied using in situ and ex situ XRD tests, ex situ XPS and cyclic voltammetry to unravel its Li<sup>+</sup> storage mechanism. Upon application as LIBs anode, the Na<sub>2</sub>MoO<sub>4</sub>·2H<sub>2</sub>O single-crystal particles with a preferred (020) surface exhibit superior reversible capacity, high-capacity retention and high cycling stability. The enhanced Li storage performance should be attributed to the regulated crystallographic orientation and small changes in the crystal microstructure during the charge/discharge process, which facilitates Li<sup>+</sup> migration and bolsters structural stability. Notably, this study introduces a novel concept and a simple synthesis method for the advancement of electrodes in rechargeable batteries.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"209 1","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synergistic intermolecular hydrogen-bonded cross-linking and steric hindrance effects enabling pomegranate-type LMFP@C for Li+ storage 分子间氢键交联和立体阻碍效应的协同作用使石榴型 LMFP@C 可用于储存 Li+

IF 8.8 1区材料科学

Rare Metals Pub Date : 2024-07-22 DOI: 10.1007/s12598-024-02914-3

Hui Li, Yun Luo, Shu-Zhe Yang, Sheng Guo, Zhe Gao, Jian-Ming Zheng, Ning Ren, Yu-Jin Tong, Hao Luo, Mi Lu

{"title":"Synergistic intermolecular hydrogen-bonded cross-linking and steric hindrance effects enabling pomegranate-type LMFP@C for Li+ storage","authors":"Hui Li, Yun Luo, Shu-Zhe Yang, Sheng Guo, Zhe Gao, Jian-Ming Zheng, Ning Ren, Yu-Jin Tong, Hao Luo, Mi Lu","doi":"10.1007/s12598-024-02914-3","DOIUrl":"https://doi.org/10.1007/s12598-024-02914-3","url":null,"abstract":"<p>LiMn<sub><i>x</i></sub>Fe<sub>1−<i>x</i></sub>PO<sub>4</sub> is a promising cathode candidate due to its high security and the availability of a high 4.1 V operating voltage and high energy density. However, the poor electrochemical kinetics and structural instability currently hinder its broader application. Herein, inspired by the hydrogen-bonded cross-linking and steric hindrance effect between short-chain polymer molecules (polyethylene glycol-400, PEG-400), the pomegranate-type LiMn<sub>0.5</sub>Fe<sub>0.5</sub>PO<sub>4</sub>-0.5@C (P-LMFP@C) cathode materials with 3D ion/electron dual-conductive network structure were constructed through ball mill-assisted spray-drying method. The intermolecular effects of PEG-400 promote the spheroidization and uniform PEG coating of LMFP precursor, which prevents agglomeration during sintering. The 3D ion/electron dual-conductive network structure in P-LMFP@C accelerates the Li<sup>+</sup> transport kinetics, improving the rate performance and cycling stability. As a result, the designed P-LMFP@C has remarkable electrochemical behavior, boasting excellent capacity retention (98% after 100 cycles at the 1C rate) and rate capability (91 mAh·g<sup>−1</sup> at 20C). Such strategy introduces a novel window for designing high-performance olivine cathodes and offers compatibility with a range of energy storage materials for diverse applications.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"80 1","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent progress of Prussian blue analogues as cathode materials for metal ion secondary batteries 普鲁士蓝类似物作为金属离子二次电池阴极材料的最新进展

IF 8.8 1区材料科学

Rare Metals Pub Date : 2024-07-22 DOI: 10.1007/s12598-024-02887-3

Xin-Yuan Fu, Lu-Lu Zhang, Cheng-Cheng Wang, Hua-Bin Sun, Xue-Lin Yang

{"title":"Recent progress of Prussian blue analogues as cathode materials for metal ion secondary batteries","authors":"Xin-Yuan Fu, Lu-Lu Zhang, Cheng-Cheng Wang, Hua-Bin Sun, Xue-Lin Yang","doi":"10.1007/s12598-024-02887-3","DOIUrl":"https://doi.org/10.1007/s12598-024-02887-3","url":null,"abstract":"<p>With the rapid development of new energy and the high proportion of new energy connected to the grid, energy storage has become the leading technology driving significant adjustments in the global energy landscape. Electrochemical energy storage, as the most popular and promising energy storage method, has received extensive attention. Currently, the most widely used energy storage method is metal-ion secondary batteries, whose performance mainly depends on the cathode material. Prussian blue analogues (PBAs) have a unique open framework structures that allow quick and reversible insertion/extraction of metal ions such as Na<sup>+</sup>, K<sup>+</sup>, Zn<sup>2+</sup>, Li<sup>+</sup> etc., thus attracting widespread attention. The advantages of simple synthesis process, abundant resources, and low cost also distinguish it from its counterparts. Unfortunately, the crystal water and structural defects in the PBAs lattice that is generated during the synthesis process, as well as the low Na content, significantly affect their electrochemical performance. This paper focuses on PBAs’ synthesis methods, crystal structure, modification strategies, and their potential applications as cathode materials for various metal ion secondary batteries and looks forward to their future development direction.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"42 1","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Roll-to-roll fabrication of lithiophilic Sn-modified Cu mesh via chemical tin plating approach for long-cycling lithium metal batteries 通过化学镀锡方法辊对辊制造用于长循环锂金属电池的亲锂锡改性铜网片

IF 8.8 1区材料科学

Rare Metals Pub Date : 2024-07-22 DOI: 10.1007/s12598-024-02875-7

Ke-Xin Liu, Ran Tan, Zhong Zheng, Rui-Rui Zhao, Burak Ülgüt, Xin-Ping Ai, Jiang-Feng Qian

{"title":"Roll-to-roll fabrication of lithiophilic Sn-modified Cu mesh via chemical tin plating approach for long-cycling lithium metal batteries","authors":"Ke-Xin Liu, Ran Tan, Zhong Zheng, Rui-Rui Zhao, Burak Ülgüt, Xin-Ping Ai, Jiang-Feng Qian","doi":"10.1007/s12598-024-02875-7","DOIUrl":"https://doi.org/10.1007/s12598-024-02875-7","url":null,"abstract":"<p>Lithium metal, with its exceptionally high theoretical capacity, emerges as the optimal anode choice for high-energy-density rechargeable batteries. Nevertheless, the practical application of lithium metal batteries (LMBs) is constrained by issues such as lithium dendrite growth and low Coulombic efficiency (CE). Herein, a roll-to-roll approach is adopted to prepare meter-scale, lithiophilic Sn-modified Cu mesh (Sn@Cu mesh) as the current collector for long-cycle lithium metal batteries. The two-dimensional (2D) nucleation mechanism on Sn@Cu mesh electrodes promotes a uniform Li flux, facilitating the deposition of Li metal in a large granular morphology. Simultaneously, experimental and computational analyses revealed that the distribution of the electric field in the Cu mesh skeleton induces Li inward growth, thereby generating a uniform, dense composite Li anode. Moreover, the Sn@Cu mesh-Li symmetrical cell demonstrates stable cycling for over 2000 h with an ultra-low 10 mV voltage polarization. In Li||Cu half-cells, the Sn@Cu mesh electrode demonstrates stable cycling for 100 cycles at a high areal capacity of 5 mAh·cm<sup>−2</sup>, achieving a CE of 99.2%. This study introduces a simple and large-scale approach for the production of lithiophilic three-dimensional (3D) current collectors, providing more possibilities for the scalable application of Li metal batteries.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"92 1","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gelatinized starch as a low-cost and bifunctional binder enables shuttle-free aqueous zinc–iodine batteries 作为一种低成本双功能粘合剂，胶化淀粉可制成无梭锌碘水电池

IF 9.6 1区材料科学

Rare Metals Pub Date : 2024-07-20 DOI: 10.1007/s12598-024-02916-1

Zheng-Tai Yu, Zong-Shuai Gong, Rui-Hang Wen, Ya-Jun Hou, Zhi-Qiang Luo, Zhi-Hao Yuan, Ning Zhang

{"title":"Gelatinized starch as a low-cost and bifunctional binder enables shuttle-free aqueous zinc–iodine batteries","authors":"Zheng-Tai Yu, Zong-Shuai Gong, Rui-Hang Wen, Ya-Jun Hou, Zhi-Qiang Luo, Zhi-Hao Yuan, Ning Zhang","doi":"10.1007/s12598-024-02916-1","DOIUrl":"10.1007/s12598-024-02916-1","url":null,"abstract":"<div><p>Rechargeable aqueous zinc–iodine (Zn–I<sub>2</sub>) batteries are widely regarded as a promising contender for energy-storage devices, due to their intrinsic safety, low cost, and high capacity. However, the severe shuttle effect of polyiodides and the large volume change of I<sub>2</sub> cathode induce severe capacity loss and poor electrochemical reversibility, hindering their commercial applications. Herein, we report that the low-cost gelatinized starch (G-starch) can be used as a bifunctional binder for Zn–I<sub>2</sub> batteries to circumvent the above problems simultaneously. Based on both calculation and experimental data, it is demonstrated that the double-helix structure of G-starch with both α-1,4- and α-1,6-glycosidic bonds can strongly interact with polyiodides to suppress the shuttle effect. Moreover, the G-starch with multiple hydrogen-bonded cross-linking networks exhibits a much-enhanced adhesion ability and can buffer the volume expansion of active materials. In contrast, the traditional carboxymethyl cellulose sodium-based aqueous binder lacks these capabilities. As a result, the G-starch binder enables the aqueous Zn–I<sub>2</sub> battery to achieve a high reversible capacity of 212.4 mAh·g<sup>−1</sup> at 0.2 A·g<sup>−1</sup> after 1000 cycles and ultralong-cycling life over 48,000 cycles with 135.4 mAh·g<sup>−1</sup> and 89.6% capacity retention at 2 A·g<sup>−1</sup>. This work develops a simple yet efficient strategy to construct high-performance Zn–I<sub>2</sub> batteries.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"43 12","pages":"6351 - 6361"},"PeriodicalIF":9.6,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141746067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lithium extraction from carbonate-rich Salt Lake brine using HBTA/TBP system 利用 HBTA/TBP 系统从富含碳酸盐的盐湖卤水中提取锂

IF 9.6 1区材料科学

Rare Metals Pub Date : 2024-07-20 DOI: 10.1007/s12598-024-02760-3

Lian-Min Ji, Dong Shi, Xiao-Wu Peng, Shao-Lei Xie, Jin-Feng Li, Yu-Ze Zhang, Li-Cheng Zhang, Yong Niu, Gang Chen, Li-Juan Li

{"title":"Lithium extraction from carbonate-rich Salt Lake brine using HBTA/TBP system","authors":"Lian-Min Ji, Dong Shi, Xiao-Wu Peng, Shao-Lei Xie, Jin-Feng Li, Yu-Ze Zhang, Li-Cheng Zhang, Yong Niu, Gang Chen, Li-Juan Li","doi":"10.1007/s12598-024-02760-3","DOIUrl":"10.1007/s12598-024-02760-3","url":null,"abstract":"<div><p>China's salt lakes hold significant lithium reserves, yet the development of low-concentration lithium resources from the carbonate brines in Tibet is a pressing matter. Alkyl β-diketones extractants are capable of efficiently extracting lithium from alkaline solutions using an extraction method, but its optimized extraction prerequisite is an extreme alkaline solution with higher pH. This research introduces a process for the effective extraction and separation of lithium and sodium from the carbonate brine of Jieze Caka Salt Lake, utilizing trifluorinated β-biketone HBTA (4,4,4-trifluoro-1-phenyl-1,3-butanedione)–TBP (tributyl phosphate)/kerosene system. A three-stage extraction yielded 98.06% of Li<sup>+</sup> and 1.69% of Na<sup>+</sup> from the initial brine with a lower pH of 8.961 and a separation factor (<i>β</i><sub>Li/Na</sub>) of 2948. The simplified process was then implemented using organic direct recycling without regeneration and scrubbing raffinate reflux for a total of 23 cycles, thereby demonstrating the exceptional effectiveness and stability of this system. The resulting lithium-rich stripping solution, with the Li/Na mass ratio amplified by 747 times, underwent further magnesium removal and precipitation using sodium carbonate to yield a high-purity lithium carbonate product of 99.50%. This study offers a novel approach and technology for the efficient separation of lithium ion directly from a partial-neutral carbonate salt lake with a high Na/Li ratio and low lithium concentration.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"43 12","pages":"6717 - 6729"},"PeriodicalIF":9.6,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0