Carbon dioxide directly induced oxygen vacancy in the surface of lithium-rich layered oxides for high-energy lithium storage

Huang, Zhe; Xiong, Tengfei; Lin, Xin; Tian, Meiyue; Zeng, Weihao; He, Jianwei; Shi, Mingyuan; Li, Jiannian; Zhang, Guobin; Mai, Liqiang; Mu, Shichun

doi:10.1016/j.jpowsour.2019.05.069

Cited by 87 publications

(37 citation statements)

References 41 publications

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“…3(c). The peak of O 1 locating in 530.83 eV is assigned to the lattice oxygen [36]. The peak at 531.69 eV is corresponding to the oxygen vacancies shown in O 2 and the peak at 532.8 eV locating in O 3 is attributed to the water molecule or hydroxyl that is adsorbed on the surface [37].…”

Section: Resultsmentioning

confidence: 99%

Ultrathin Ni/V-layered double hydroxide nanosheets for efficient visible-light-driven photocatalytic nitrogen reduction to ammonia

Liu

Zhang

2021

Nano Res.

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Ammonia is important for industrial development and human life. The traditional Haber Bosch method converts nitrogen into ammonia gas at high temperatures and pressures, causing serious pollution and greenhouse gas emissions. These problems prompt the nitrogen fixation method to proceed in a sustainable way. Ultrathin Ni/V-layered double hydroxides (Ni/V-LDHs) nanosheets with different proportions were prepared successfully for photocatalystic reduction of nitrogen to ammonia, through aqueous miscible organic solvent method (AMO) to achieve the higher surface area and rich oxygen vacancies, containing more carriers and active sites to enhance nitrogen reduction. And the optimal catalyst of Ni/V-LDHs 11 AMO possesses the highest photocatalytic efficiency (176 μmol•g −1 •h −1 ), indicating its potential application prospects in catalyst fields. Consequently, this work achieves an environmentally friendly, low-cost and efficient conversion method for nitrogen reduction to ammonia through solar energy.

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Section: Resultsmentioning

confidence: 99%

Ultrathin Ni/V-layered double hydroxide nanosheets for efficient visible-light-driven photocatalytic nitrogen reduction to ammonia

Liu

Zhang

2021

Nano Res.

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“…Our group has also conducted similar research. Huang et al [124] . directly treat the original cathode material with CO 2 gas only at room temperature.…”

Section: Modification Methodsmentioning

confidence: 99%

Synthesis, Modification, and Lithium‐Storage Properties of Spinel LiNi_0.5Mn_1.5O₄

et al. 2021

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Lithium‐ion batteries (LIBs) are currently widely applied in many aspects of life, but with the development, the capacity of lithium‐ion batteries can no longer meet the needs. One of the dominant factors to restricting the capacity of LIBs is the cathode materials. Among the derivatives of spinel cathode LiMn2O4 (LMO), LiNi0.5Mn1.5O4 (LNMO) has become one of the research promising cathode materials in the current LIBs due to its high working voltage (4.7 V) and large theoretical specific capacity (147 mAh g−1). However, the short cycle life of LNMO during the electrochemical process limits its large‐scale commercial applications. Thus, it is necessary to summarize and discuss the recent development of LNMO. Through comparison with LiMn2O4, the structure, electrochemical properties of LNMO, influence of Mn on the performance of LNMO, and the capacity fading mechanism are analyzed and discussed in detail. We also summarize the modification methods of LNMO and the influence of preparation methods on the structure and performance of LNMO. Finally, some prospects of LNMO cathode are put forward. This Review article can provide helpful references for future design and construction of LNMO.

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“…O 2 nÀ where n 2 (1,2,3)) with irreversible O 2 loss,w hich leads large initial reversible capacity loss,obvious voltage decay,poor-rate capability,and inferior cycling performance. [2] So far,s everal strategies including surface modification of doping, [3] coating, [4] spinel formation, [5] and the defects structure [6] have been developed to overcome those issues.R ecently,g as-solid treatment with the advantages of uniform handling of surface and easy operation has been applied to stabilize the LLR structure via generating the oxygen vacancy.Huang et al [7] introduced CO 2 to generate oxygen vacancy and resulted in enhanced cycling and rate performance.Peng et al [8] in situ constructed aspinel membrane by exposing the pristine material to pure CO atmosphere,which effectively prevents the side reactions with electrolyte.F urthermore,t he spinel membrane also acted to inhibit the irreversible transformation and promote the Li + diffusion. Nevertheless,i t ss till ag reat challenge to develop advanced LLR with precisely controlled gas-solid treatment.…”

Section: Introductionmentioning

confidence: 99%

A Simple Gas–Solid Treatment for Surface Modification of Li‐Rich Oxides Cathodes

Zhang²,

Chen

et al. 2021

Angew Chem Int Ed

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Li-richl ayered oxides with high capacity are expected to be the next generation of cathode materials. However,t he irreversible and sluggish anionic redox reaction leads to the O 2 loss in the surface as well as the capacity and voltage fading.I nt he present study,asimple gas-solid treatment with ferrous oxalate has been proposed to uniformly coat at hin spinel phase layer with oxygen vacancy and simultaneously realize Fe-ion substitution in the surface.T he integration of oxygen vacancy and spinel phase suppresses irreversible O 2 release,p revents electrolyte corrosion, and promotes Li-ion diffusion. In addition, the surface doping of Fe-ion can further stabilizet he structure.A ccordingly,t he treated Feox-2 %c athode exhibits superior capacity retention of 86.4 %a nd 85.5 %a t1Ca nd 2C to that (75.3 %a nd 75.0 %) of the pristine sample after 300 cycles,r espectively. Then, the voltage fading is significantly suppressed to 0.0011 V per cycle at 2Cespecially.T he encouraging results may play asignificant role in paving the practical application of Li-rich layered oxides cathode.

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Carbon dioxide directly induced oxygen vacancy in the surface of lithium-rich layered oxides for high-energy lithium storage

Cited by 87 publications

References 41 publications

Ultrathin Ni/V-layered double hydroxide nanosheets for efficient visible-light-driven photocatalytic nitrogen reduction to ammonia

Ultrathin Ni/V-layered double hydroxide nanosheets for efficient visible-light-driven photocatalytic nitrogen reduction to ammonia

Synthesis, Modification, and Lithium‐Storage Properties of Spinel LiNi_0.5Mn_1.5O₄

A Simple Gas–Solid Treatment for Surface Modification of Li‐Rich Oxides Cathodes

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Carbon dioxide directly induced oxygen vacancy in the surface of lithium-rich layered oxides for high-energy lithium storage

Cited by 87 publications

References 41 publications

Ultrathin Ni/V-layered double hydroxide nanosheets for efficient visible-light-driven photocatalytic nitrogen reduction to ammonia

Ultrathin Ni/V-layered double hydroxide nanosheets for efficient visible-light-driven photocatalytic nitrogen reduction to ammonia

Synthesis, Modification, and Lithium‐Storage Properties of Spinel LiNi0.5Mn1.5O4

A Simple Gas–Solid Treatment for Surface Modification of Li‐Rich Oxides Cathodes

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Synthesis, Modification, and Lithium‐Storage Properties of Spinel LiNi_0.5Mn_1.5O₄