Energy and Environmental Science
Papers 4,519
1 page of 452 pages (4,519 results)
#1Theodore Hanein (University of Sheffield)H-Index: 9
#2M. Simoni (University of Sheffield)H-Index: 1
Last. Hajime Kinoshita (University of Sheffield)H-Index: 13
view all 5 authors...
The calcination of calcium carbonate (CaCO3) is a major contributor to carbon dioxide (CO2) emissions that are changing our climate. Moreover, the calcination process requires high temperatures (∼900 °C). A novel low-temperature process for the decarbonisation of CaCO3 is tested whereby the CO2 is directly sequestered/mineralised in sodium carbonate. CaCO3 is reacted with an aqueous sodium hydroxide solution by mixing under atmospheric temperatures and pressures. The reaction products are calciu...
#1Juhyun Song (Argonne National Laboratory)H-Index: 5
#2Zhe Liu (Argonne National Laboratory)H-Index: 10
Last. Shabbir Ahmed (Argonne National Laboratory)H-Index: 27
view all 8 authors...
The charging rate of Li-ion batteries is limited by the risks of lithium plating and thermal damage, both of which negatively affect lifetime of the batteries. This work analyzes how to minimize charge time and manage the risk of degradation using both electrical and thermal controls. To accomplish this, an electrochemical-thermal model is developed to introduce a constant-risk fast charging protocol which maximizes the charging current while maintaining the cell within pre-defined design limits...
#1Tongtong LiH-Index: 1
#2Gyutae NamH-Index: 24
Last. Meilin LiuH-Index: 131
view all 15 authors...
The development of anode materials with high-rate capability is critical to high-power lithium batteries. T-Nb2O5 has been widely reported to exhibit pseudocapacitive behavior and fast lithium storage capability. However, the other polymorphs of Nb2O5 prepared at higher temperatures have the potential to achieve even higher specific capacity and tap density than T-Nb2O5, offering higher volumetric power and energy density. Here, micrometer-sized H-Nb2O5 with rich Wadsley planar defects (denoted ...
#1Hongxin Hong (JNU: Jinan University)H-Index: 2
#2Xiya Yang (JNU: Jinan University)H-Index: 18
Last. Qunwei Tang (JNU: Jinan University)H-Index: 65
view all 9 authors...
The rapid development of the Internet of Things has resulted in the harvesting of distributed sustainable energy receiving increasing attention. Recently, a study on triboelectric nanogenerators (TENGs) for collecting low-frequency and irregular-amplitude ocean wave energy has attracted significant interest. Herein, a self-powered seesaw-structured spherical triboelectric–electromagnetic hybrid nanogenerator (SSTE-HNG) combining various working modes is presented for harvesting wide-frequency wa...
#1Shujing ZhangH-Index: 1
Last. Xiong LiH-Index: 77
view all 14 authors...
challenges of scaling up from laboratorial cells to industrial modules without serious performance loss while maintaining excellent long-term stability, owing to the resistive losses and extra instability factors that scale quadratically with the device area. Here, we manifest a concept of multifunctional interface modulation for highly efficient and stable perovskite solar modules (PSMs). The advisably designed multifunctional interface modulator GO/QD crosslinks the CsPbBr3 perovskite quantum ...
#1Geon-Tae Park (Hanyang University)H-Index: 2
#2Dae Ro Yoon (Hanyang University)H-Index: 2
Last. Yang-Kook Sun (Hanyang University)H-Index: 134
view all 11 authors...
The development of high energy-density Ni-rich (Ni ≥ 90%) layered cathodes has remained difficult because of the rapid capacity fading that occurs during cycling. This study demonstrates that limiting the primary particle size of the cathode resolves the capacity fading problem as nano-sized primary particles effectively relieve the high internal strain associated with the phase transition near charge end and fracture-toughen the cathode. A linear relationship is observed between battery cycling...
#1Qiong Liu (CAS: Chinese Academy of Sciences)H-Index: 2
#2Hui Cheng (CAS: Chinese Academy of Sciences)H-Index: 2
Last. Fuxian Wang (CAS: Chinese Academy of Sciences)H-Index: 11
view all 6 authors...
Photocatalytic conversion of CO2 to CH3CHO is of increasing interest but confronts significant challenge in forming C–C bond and keeping a C=O bond intact throughout the process. Here, we report the selective photocatalytic hydrogenation of CO2 to CH3CHO using a modified polymeric carbon nitride (PCN) at mild conditions. The locally crystallized PCN offers a photocatalytic activity of 1814.7 μmolh-1g-1 with a high selectivity of 98.3% for CH3CHO production, and a quantum efficiency of 22.4 % at ...
#1Eunhee Gong (DGIST: Daegu Gyeongbuk Institute of Science and Technology)H-Index: 1
#2Shahzad Ali (DGIST: Daegu Gyeongbuk Institute of Science and Technology)H-Index: 1
Last. Su-Il In (DGIST: Daegu Gyeongbuk Institute of Science and Technology)H-Index: 25
view all 8 authors...
Photocatalytic production of solar fuels from CO2 is a promising strategy for addressing global environmental problems and securing future energy supplies. Although extensive research has been conducted to date, numerous impediments to realizing efficient, selective, and stable CO2 reduction have yet to be overcome. This comprehensive review highlights the recent advances in CO2 photoreduction, including critical challenges such as light-harvesting, charge separation, and the activation of CO2 m...
#1Yu An (Georgia Institute of Technology)H-Index: 1
#2Carlo Andrea Riccardo Perini (Georgia Institute of Technology)H-Index: 5
Last. Juan-Pablo Correa-Baena (Georgia Institute of Technology)H-Index: 46
view all 10 authors...
One of the organic components in the perovskite photo-absorber, the methylammonium cation, has been suggested to be a roadblock to the long-term operation of organic–inorganic hybrid perovskite-based solar cells. In this work we systematically explore the crystallographic and optical properties of the compositional space of mixed cation and mixed halide lead perovskites, where formamidinium (FA+) is gradually replaced by cesium (Cs+), and iodide (I−) is substituted by bromide (Br−), i.e., CsyFA1...
High-loaded oxygen reduction reaction (ORR) Pt intermetallic compounds with high performance expression under PEMFC operating conditions are prerequisite for practical application. Nevertheless, high metal-loading would lead to the severe agglomeration and nonuniformity of nanoparticles, imposing an enormous challenge on efficient synthesis. Herein we present a cobalt oxide aided structural evolution strategy to controllably synthesize high-loaded (44.7 wt%) sub-6 nm Pt1Co1 intermetallic compoun...
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