Investigation of the relationship between the cycle performance and the electronic structure in LiAlxMn2−xO4 (x = 0 and 0.2) using soft X-ray spectroscopy
文献信息
Daisuke Asakura, Yusuke Nanba, Yuki Makinose, Hirofumi Matsuda, Eiji Hosono
Al doping into LiMn2O4 is one of the well-known methods to improve the cycle performance of the LiMn2O4 cathode. We carried out soft X-ray emission spectroscopy (XES) for LiMn2O4 and LiAl0.2Mn1.8O4 to elucidate the relationship between the Mn 3d electronic structures and cycle performances. After the first cycle, the XES spectra of LiAl0.2Mn1.8O4 are almost unchanged compared to the initial state. In contrast, charge-transfer excitation for the XES of LiMn2O4 is significantly reduced, indicating that the Mn 3d-O 2p hybridization in LiMn2O4 should be easily weakened by charge–discharge. In LiAl0.2Mn1.8O4, the Mn–O bond becomes more stable due to the decrease of Mn3+ ions with Jahn–Teller distortion by Al3+ doping, resulting in the improved cycle performance.
相关文献
Activation of disulfide bond cleavage triggered by hydrophobization and lipophilization of functionalized dihydroasparagusic acid
Fuyuhiko Inagaki, Miyuki Momose, Naoya Maruyama, Kenkyo Matsuura, Tsukasa Matsunaga, Chisato Mukai
DOI: 10.1039/C8OB01055B
Palladium-catalysed stereoselective [3 + 2] annulation of vinylethylene carbonates and tryptanthrin-based ketones
Qing-Zhu Li, Jun-Long Li, Bin Zhang, Zhen Dai, Ke Xie, Rong Zeng, Liang Zou, Xiang Zhang
DOI: 10.1039/D1QO01543E
Aziridine based electrophilic handle for aspartic acid ligation
Kiran Bajaj, Devesh S. Agarwal, Rajeev Sakhuja, Girinath G. Pillai
DOI: 10.1039/C8OB00676H
Mixed carboxylic–sulfonic anhydride in reaction with imines: a straightforward route to water-soluble β-lactams via a Staudinger-type reaction
Olga Bakulina, Dmitry Dar'in, Mikhail Krasavin
DOI: 10.1039/C8OB00768C
A photoredox/nickel dual-catalytic strategy for benzylic C–H alkoxylation
Min Dong, Yuqi Jia, Wei Zhou, Jinlai Gao, Xiaoqing Lv, Fan Luo, Yongqiang Zhang, Shihui Liu
DOI: 10.1039/D1QO01421H
Copper-catalyzed regio- and stereoselective fluorocarboalkynylation of alkynes
Binlin Zhao, Yukun Zheng, Tianxiang Zhu, Mengning Wang, Minyan Wang, Mengtao Ma
DOI: 10.1039/D1QO01201K
Tetra-substituted furans by a gold-catalysed tandem C(sp3)–H alkynylation/oxy-alkynylation reaction
Chunyu Han, Xianhai Tian, Lina Song, Yaowen Liu
DOI: 10.1039/D1QO01401C
A desulphurization strategy for Sonogashira couplings by visible light/copper catalysis
Xuan Li, Xiaolong Zhu, Xiuyan Song, Qirong Deng, Jian Lv
DOI: 10.1039/D1QO01548F
gem-Difluorovinylation of alkynyl bromoarenes via dual nickel-/palladium-catalyzed cross-electrophile coupling
Haotian Sun, Baojian Xiong, Yuan Yang, Jiangjun Liu, Xuemei Zhang, Zhong Lian
DOI: 10.1039/D1QO01406D
Recent advances in catalytic enantioselective direct C–H bond functionalization of electron-deficient N-containing heteroarenes
Xiao-Lan Liu, Luo-Bin Jiang, Mu-Peng Luo, Zhi Ren, Shou-Guo Wang
DOI: 10.1039/D1QO01223A
您可能还喜欢
如何处理含有8-氯咪唑并[1,2-A]吡嗪(CAS号:69214-33-1)的废料?
处理含有8-氯咪唑并[1,2-A]吡嗪的废料时,应首先将其收集并进行化学回收或降解。如果无法回收,需采用安全的化学处理方法,如中和、氧化还原或沉淀。处理过程中需...
Calhex 231 hydrochloride(CAS号:2387505-78-2)适用哪些法规指南?
Calhex 231 hydrochloride 需要遵循《全球化学品统一分类和标签制度》(GHS)的分类和标签要求,以及欧盟的《化学品注册、评估、授权和限制条...
11-Beta,17-alpha,21-三羟基-5-beta-孕烯-3,20-二酮(CAS号:1482-50-4)的物理化学性质是什么?
11-Beta,17-alpha,21-三羟基-5-beta-孕烯-3,20-二酮是一种无色结晶性粉末,分子量为372.45 g/mol。该化合物在水中的溶解度...
处理5-异丙基-1,3,4-恶二唑-2-羧酸(CAS号:944907-13-5)时应注意哪些实验室安全事项?
处理5-异丙基-1,3,4-恶二唑-2-羧酸时应注意以下安全事项:穿戴适当的个人防护装备,包括实验室外套、手套和护目镜;操作应在通风橱中进行,以减少吸入或接触有...
benzyl 3-bromopropanoate(CAS号:90841-55-7)安全吗?
Benzyl 3-bromopropanoate属于有毒物质,吸入、摄入或皮肤接触均可能对人体造成伤害。操作时应佩戴防护眼镜、口罩和手套,避免吸入蒸汽和直接接触...
什么是(R)-N-苄氧羰基-3,4-二氢-1H-异喹啉羧酸(CAS号:151004-88-5)?
(R)-N-苄氧羰基-3,4-二氢-1H-异喹啉羧酸是一种含有苄氧羰基和异喹啉环结构的化合物,分子式为C17H15NO3。它是一种有机化合物,具有一定的生物活性...
在合成中是否有1-苄基吡啶嗡-3-羧酸盐(CAS号:15990-43-9)的替代品?
可以考虑使用1-苄基吡啶-3-羧酸盐作为1-苄基吡啶嗡-3-羧酸盐的替代品。此外,还可以探索其他类似物,如1-苄基吡啶-3-氨基甲酸酯等。具体的替代品选择需根据...
(2,6-二甲基吡啶-3-基)甲醇(CAS号:582303-10-4)安全吗?
(2,6-二甲基吡啶-3-基)甲醇在使用时需注意安全,应避免吸入其蒸汽,接触皮肤和眼睛。操作应在通风良好的环境中进行,佩戴适当的个人防护装备。
5-溴-2-乙烯基吡啶(CAS号:226883-52-9)的物理化学性质是什么?
5-溴-2-乙烯基吡啶是一种有机化合物,外观为白色固体,具有良好的结晶性。分子量约为190.03 g/mol。它的溶解性在水中较差,但在有机溶剂如二氯甲烷、甲醇...
2-羟基-3-硝基-5-甲基吡啶(CAS号:7464-14-4)应用于哪些行业?
2-羟基-3-硝基-5-甲基吡啶主要应用于医药、聚合物和半导体行业。在医药领域,它可以用作合成其他药物的中间体。在聚合物领域,它可以作为功能性单体参与聚合反应,...
来源期刊
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.














