Low Temperature Pyrolyzed Soft Carbon as High Capacity K-Ion Anode

2019 ◽  
Vol 2 (6) ◽  
pp. 4053-4058 ◽  
Author(s):  
Zhifei Li ◽  
Woochul Shin ◽  
Yicong Chen ◽  
Joerg C. Neuefeind ◽  
P. Alex Greaney ◽  
...  
Keyword(s):  
Low Temperature ◽  
High Capacity ◽  
Soft Carbon

scholarly journals Achieving Atomic Dispersion of Highly Loaded Transition Metals in Small‐Pore Zeolite SSZ‐13: High‐Capacity and High‐Efficiency Low‐Temperature CO and Passive NO x Adsorbers

2018 ◽  
Vol 57 (51) ◽  
pp. 16672-16677 ◽  
Author(s):  
Konstantin Khivantsev ◽  
Nicholas R. Jaegers ◽  
Libor Kovarik ◽  
Jonathan C. Hanson ◽  
Franklin (Feng) Tao ◽  
...  
Keyword(s):  
Low Temperature ◽  
Transition Metals ◽  
High Efficiency ◽  
High Capacity ◽  
Small Pore ◽  
Highly Loaded

Defect‐Rich Soft Carbon Porous Nanosheets for Fast and High‐Capacity Sodium‐Ion Storage

2018 ◽  
Vol 9 (6) ◽  
pp. 1803260 ◽  
Author(s):  
Xuhui Yao ◽  
Yajie Ke ◽  
Wenhao Ren ◽  
Xuanpeng Wang ◽  
Fangyu Xiong ◽  
...  
Keyword(s):  
High Capacity ◽  
Sodium Ion ◽  
Porous Nanosheets ◽  
Ion Storage ◽  
Soft Carbon ◽  
Sodium Ion Storage

Ternary MgTiX-Alloys: A Promising Route towards Low-Temperature, High-Capacity, Hydrogen-Storage Materials

2007 ◽  
Vol 13 (35) ◽  
pp. 9892-9898 ◽  
Author(s):  
Paul Vermeulen ◽  
Emile F. M. J. van Thiel ◽  
Peter H. L. Notten
Keyword(s):  
Low Temperature ◽  
Hydrogen Storage ◽  
High Capacity ◽  
Hydrogen Storage Materials ◽  
Storage Materials

Low Temperature Syntheses of Transition Metal Bronzes with an Open Structure for High Rate Energy Storage

2013 ◽  
Vol 1547 ◽  
pp. 87-94
Author(s):  
X. Pétrissans ◽  
V. Augustyn ◽  
D. Giaume ◽  
P. Barboux ◽  
B. Dunn
Keyword(s):  
Energy Storage ◽  
Low Temperature ◽  
Transition Metal ◽  
Transition Metal Oxides ◽  
High Surface ◽  
High Capacity ◽  
Ionic Conductivities ◽  
Specific Area ◽  
High Energy ◽  
High Rate

ABSTRACTDevelopment of devices storing and delivering high-energy power such as supercapacitors is necessary to assist intermittent sources of energy. Most of the commercial systems are carbon-based, but due to their high surface charge, oxides offer a valuable alternative for high-rate energy storage. Among them, layered transition metal oxides with mixed valence properties present both good electronic and ionic conductivities suitable for application to electrochemical applications intermediate between capacitors and batteries. This work focuses on lamellar oxide bronzes based on cobalt MxCoO2 and vanadium MxV2O5 (M = H, Li, Na or K). A low temperature synthesis leads to high specific area particles (above 100 m2/g). Hydrated and anhydrous NaxCoO2 are promising cathode materials for aqueous supercapacitors, with a high capacity of more than 100 mAh/g obtained under 20 mV/s for the hydrated NaxCoO2. The MxV2O5 bronzes appear to be good candidates for organic supercapacitors, especially the LixV2O5 bronze, which shows a high stable capacity above 100 mAh/g (at 20 mV/s ie a charging time of 125 s).

scholarly journals Bacterial community shift and effects of the inclusion of a mixed psychrotrophic bacteria strain for sewage treatment in constructed wetland in winter seasons

2021 ◽  
Author(s):  
xiaoyan xu ◽  
Jie Jiang ◽  
Zhinan Guo ◽  
Lianglun Sun ◽  
Meizhen Tang
Keyword(s):  
Low Temperature ◽  
Constructed Wetlands ◽  
High Throughput Sequencing ◽  
Sewage Treatment ◽  
High Capacity ◽  
Oxygen Demand ◽  
Ammonia Nitrogen ◽  
Nitrogen And Phosphorus ◽  
Degradation Kinetic ◽  
Psychrotrophic Bacteria

Abstract The mechanism of wastewater treatment based on psychrophilic strains to improve the denitrification efficiency of constructed wetlands at low temperatures has already become a new hotspot. In this study, three mixed psychrophilic strains (Psychrobacter TM-1, Sphingobacterium TM-2 and Pseudomonas TM-3) with high capacity of denitrification were added into a vertical-flow constructed wetlands (CWs), and the effect of the mixed strains on CWs sewage treatment was evaluated. The removal efficiency of chemical oxygen demand (COD), ammonia nitrogen (NH4+-N), total nitrogen (TN) and total phosphorus (TP) was quantified to establish the degradation kinetic model and determine the best dosage of the mixed strains. The effect mechanism of the mixed strains on indigenous microbial community and the change of sewage treatment performance in low temperature constructed wetlands was clarified by high-throughput sequencing technology. The results showed that the mixed strains can effectively remove the organic pollutants (nitrogen and phosphorus) and the optimum dosage of the mixed strain was 2.5%,with average removal rates of 1.52, 2.12, 2.07 and 1.29 times than those of the control. Meanwhile, the dominant strains in the CWs were Proteobacteria (31.23–44.34%), Chloroflexi (12.04–19.05%), Actinobacteria (10.6-20.62%), Acidobacteria (8.23–11.65%), Firmicutes (2.23–15.95%) and Bacteroidetes (4.01–18.9%). These findings provide a basis for the removal of pollutants in constructed wetlands at low temperature.

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