Results 61 to 70 of about 2,288,779 (293)

Oxidation kinetics of a Ni-Cu based cermet at high temperature [PDF]

, 2013
The oxidation kinetics of a cermet composed of Ni–Cu alloy and nickel ferrite was studied by thermogravimetry at 960 °C under oxygen in the range 0.5–77 kPa. After an initial mass increase up to 15 g/m2 due to oxidation of surface metallic particles, the
Palau, Patrice, Abildskov, Jens, Thomsen, Kaj, Herri, Jean-Michel, Chamelot, Pierre, von Solms, Nicolas, Honvault, Christophe, Peres, Véronique, Bouvet, Sylvie, Cassayre, Laurent, Herslund, Peter Jørgensen, Kwaterski, Matthias, Galfré, Aurélie, Brântuas, Pedro, Pijolat, Michèle   +14 more
core   +1 more source

Insight into the Surface Reconstruction-Induced Structure and Electrochemical Performance Evolution for Ni-Rich Cathodes with Postannealing after Washing

, 2023
Ni-rich layered LiNixCoyAlzO2 (NCA, x ≥ 0.8) oxides have attracted wide attention as cathode materials for lithium-ion batteries due to their higher energy density and lower cost.
Feng-Rong He (8400201), Zi-Qi Tian, Wen Yang (235745), Bao-Ping Zheng, Xiao-Dong Guo (4114936), Jun-Yao Cai, Wei Xiang, Bao-Ping Zheng (14597933), Xiao-Dong Guo, Wei Xiang (46368), Feng-Rong He, Zi-Qi Tian (2349700), Wen Yang, Jun-Yao Cai (14597936)   +13 more
core   +1 more source

Balancing Hydrophobicity and Hydrophilicity: Dual Filler‐Engineered Proton Exchange Membranes for Durable, High‐Power Fuel Cells

Advanced Functional Materials, EarlyView.
Polarity‐matched Zr–MOFs program Nafion's nanoscale morphology during solution casting. Hydrophilic UiO‐66 preserves hydrated pathways, while hydrophobic UiO‐67 increases the proton hopping sites by densifying ionic clusters. Combining both fillers yields a membrane that delivers 176 mS cm−1 conductivity, reaches 1.46 W cm−2 under 200 kPa, and triples ...
Yonghwi Cho, Yunseong Ji, Minkyu Choi, Junsu Kim, Yejin Kim, Su Jeong Lee, Wooyoung Choi, Choong Hoo Lee, Ju Yeon Kim, Ohchan Kwon, Hanim Kim, Du Yeol Ryu, Ki Chul Kim, Dae Woo Kim   +13 more
wiley   +1 more source

Role of structural defects in olivine cathodes [PDF]

, 2012
The high rate capability and structural stability of the olivine phosphates attracted a lot of interest as promising cathode materials for high energy density batteries.
Kandhasamy, S., Nallathamby, K., Minakshi, M.   +2 more
core  

Tracking Battery Microstructural Degradation Through Directional Thermal Transport Signatures

Advanced Functional Materials, EarlyView.
In lithium‐ion batteries, heat conduction varies between the through‐plane and in‐plane directions because of the cell's layered structure. Therefore, cell degradation influences thermal conductivity in each direction uniquely due to detailed microstructural and compositional changes.
Mohammad Shoghi Tekmedash, Rituparna Mohanty, Jack Leber, David Nageb, Mirella Richard, Sharan Singh, Amin Reihani   +6 more
wiley   +1 more source

Quantifying Electrochemical Degradation in Single-Crystalline LiNi_{0.8}Mn_{0.1}Co_{0.1}O_{2}–Graphite Pouch Cells through Operando X-Ray and Postmortem Investigations

PRX Energy
Layered nickel-rich lithium transition-metal oxides (LiNi_{x}Mn_{y}Co_{1−x−y}O_{2}; where x ≥ 0.8), with single-crystalline morphology, are promising future high-energy-density Li-ion battery cathodes due to their ability to mitigate particle-cracking ...
Ashok S. Menon, Nickil Shah, James A. Gott, Eleni Fiamegkou, Matthew J. W. Ogley, Galo J. Páez Fajardo, Naoum Vaenas, Ieuan Ellis, N. Ravichandran, P. Cloetens, D. Karpov, J.M. Warnett, Paul Malliband, David Walker, Geoff West, Melanie Loveridge, Louis F.J. Piper   +16 more
doaj   +1 more source

Electrochemical Pathways for Nitrate Conversion to Ammonia: From Environmental Challenges to Ammonia Economy

Advanced Functional Materials, EarlyView.
This perspective presents recent advances in electrocatalytic nitrate reduction, focusing on reaction mechanisms, catalyst design, and electrolyzer configurations. Key challenges in selectivity, stability, and practical wastewater treatment are highlighted, while future directions for advancing sustainable ammonia synthesis and nitrate remediation are ...
Xintong Li, Yunpeng Zuo, Xiaoran Zhang, Jieqiong Shan, Kenneth Mei Yee Leung, Bin Liu, Peter Strasser, Adrian Fisher, Zonglong Zhu, Xin Wang   +9 more
wiley   +1 more source

Selective Lithium Recovery from Spent NCM811 Cathodes via MnSO₄-Assisted Rapid Thermal Reconstruction and Water Leaching

Separations
The increasing generation of spent Ni-rich layered cathodes creates an urgent demand for efficient lithium recovery and value-added reutilisation of transition-metal components.
Zhengwu Peng, Ruili Zheng, Xiangyu Wang, Zhen Wan, Xiaolin Pan, Zhi Wang, Zongliang Zhang, Dong Wang, Guoyu Qian   +8 more
doaj   +1 more source

Kinetics‐Controlled Architecture of Binder‐Free Organic Electrodes for Enhanced Ion Transport

Advanced Functional Materials, EarlyView.
Pulse reverse electrodeposition controls nucleation and growth to create hierarchically porous Py‐derived oligomeric electrodes with enhanced ionic accessibility and reduced transport resistance. The resulting binder‐free architectures translate these transport advantages into practical sodium‐storage functionality.
Satendra Kumar, María del Carmen Giménez‐López   +1 more
wiley   +1 more source

Oxygen Anion Redox Chemistry Correlated with Spin State in Ni‐Rich Layered Cathodes

Advanced Science, 2023
Despite the low cost and high capacity of Ni‐rich layered oxides (NRLOs), their widespread implementation in electric vehicles is hindered by capacity decay and O release.
Zhihua Lu, Jicheng Zhang, Qinghua Zhang, Deniz Wong, Wen Yin, Nian Zhang, Zhongjun Chen, Lin Gu, Zhongbo Hu, Xiangfeng Liu   +9 more
doaj   +1 more source