Large Scale Solid State Synthetic Technique for High Performance Thermoelectric Materials: Magnesium-Silicide-Stannide

2020 ◽  
Vol 3 (3) ◽  
pp. 2130-2136
Author(s):  
Daniel C. Ramirez ◽  
Leilane R. Macario ◽  
Xiaoyu Cheng ◽  
Michael Cino ◽  
Daniel Walsh ◽  
...  
Keyword(s):  
Solid State ◽  
Thermoelectric Materials ◽  
High Performance ◽  
Large Scale ◽  
Magnesium Silicide

scholarly journals Superior Pseudocapacitive Storage of a Novel Ni3Si2/NiOOH/Graphene Nanostructure for an All-Solid-State Supercapacitor

2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Jing Ning ◽  
Maoyang Xia ◽  
Dong Wang ◽  
Xin Feng ◽  
Hong Zhou ◽  
...  
Keyword(s):  
Solid State ◽  
High Performance ◽  
Large Scale ◽  
Specific Capacity ◽  
Three Dimensional ◽  
Chemical Vapor ◽  
Specific Area ◽  
High Energy ◽  
Scale Production ◽  
Free Standing

Abstract Recent developments in the synthesis of graphene-based structures focus on continuous improvement of porous nanostructures, doping of thin films, and mechanisms for the construction of three-dimensional architectures. Herein, we synthesize creeper-like Ni3Si2/NiOOH/graphene nanostructures via low-pressure all-solid melting-reconstruction chemical vapor deposition. In a carbon-rich atmosphere, high-energy atoms bombard the Ni and Si surface, and reduce the free energy in the thermodynamic equilibrium of solid Ni–Si particles, considerably catalyzing the growth of Ni–Si nanocrystals. By controlling the carbon source content, a Ni3Si2 single crystal with high crystallinity and good homogeneity is stably synthesized. Electrochemical measurements indicate that the nanostructures exhibit an ultrahigh specific capacity of 835.3 C g−1 (1193.28 F g−1) at 1 A g−1; when integrated as an all-solid-state supercapacitor, it provides a remarkable energy density as high as 25.9 Wh kg−1 at 750 W kg−1, which can be attributed to the free-standing Ni3Si2/graphene skeleton providing a large specific area and NiOOH inhibits insulation on the electrode surface in an alkaline solution, thereby accelerating the electron exchange rate. The growth of the high-performance composite nanostructure is simple and controllable, enabling the large-scale production and application of microenergy storage devices.

scholarly journals Metallization and Diffusion Bonding of CoSb3-Based Thermoelectric Materials

Materials ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1130 ◽  
Author(s):  
Hangbin Feng ◽  
Lixia Zhang ◽  
Jialun Zhang ◽  
Wenqin Gou ◽  
Sujuan Zhong ◽  
...  
Keyword(s):  
Thermoelectric Materials ◽  
Diffusion Bonding ◽  
High Performance ◽  
Large Scale ◽  
Coefficient Of Thermal Expansion ◽  
Good Thermal Stability ◽  
Metallization Layer ◽  
Low Temperature Annealing ◽  
Specific Contact ◽  
Bonding Method

CoSb3-based skutterudite alloy is one of the most promising thermoelectric materials in the middle temperature range (room temperature—550 °C). However, the realization of an appropriate metallization layer directly on the sintered skutterudite pellet is indispensable for the real thermoelectric generation application. Here, we report an approach to prepare the metallization layer and the subsequent diffusion bonding method for the high-performance multi-filled n-type skutterudite alloys. Using the electroplating followed by low-temperature annealing approaches, we successfully fabricated a Co-Mo metallization layer on the surface of the skutterudite alloy. The coefficient of thermal expansion of the electroplated layer was optimized by changing its chemical composition, which can be controlled by the electroplating temperature, current and the concentration of the Mo ions in the solution. We then joined the metallized skutterudite leg to the Cu-Mo electrode using a diffusion bonding method performed at 600 °C and 1 MPa for 10 min. The Co-Mo/skutterudite interfaces exhibit extremely low specific contact resistivity of 1.41 μΩ cm2. The metallization layer inhibited the elemental inter-diffusion to less than 11 µm after annealing at 550 °C for 60 h, indicating a good thermal stability. The current results pave the way for the large-scale fabrication of CoSb3-based thermoelectric modules.

Large-scale synthesis of Si@C three-dimensional porous structures as high-performance anode materials for lithium-ion batteries

2014 ◽  
Vol 2 (48) ◽  
pp. 20494-20499 ◽  
Author(s):  
Chengmao Xiao ◽  
Ning Du ◽  
Xianxing Shi ◽  
Hui Zhang ◽  
Deren Yang
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
High Performance ◽  
Large Scale ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Magnesium Silicide ◽  
Porous Structures ◽  
Acid Pickling ◽  
Large Scale Synthesis

We demonstrate the synthesis of Si@C three-dimensional porous structures derived from commercial magnesium silicide (Mg2Si) powder via simple annealing and acid pickling processes.

Survey of electronic imaging past, present, and future

1986 ◽  
Vol 44 ◽  
pp. 82-83
Author(s):  
R. Aikens ◽  
G. Sims
Keyword(s):  
Image Processing ◽  
Solid State ◽  
High Performance ◽  
Large Scale ◽  
Rotating Disk ◽  
Early Years ◽  
Spiral Pattern ◽  
Electronic Imaging ◽  
Low Performance

Since its inception in the 1920's, electronic imaging has evolved from placing a photocell behind a rotating disk with a spiral pattern of holes to solid-state sensors backed by powerful image-processing computers. In the early years, developments in electronics imaging were driven by the possibility of broadcasting images over the airwaves. A number of scientists attempted to adapt devices for television to other forms of electronic imaging. However, success in applying televison pickup tubes to high-performance imaging was minimal because of the high cost, low performance, and scarcity of large-scale computers.

Bioinspired large-scale production of multidimensional high-rate anodes for both liquid & solid-state lithium ion batteries

2019 ◽  
Vol 7 (40) ◽  
pp. 22958-22966 ◽  
Author(s):  
Shenghui Shen ◽  
Shengzhao Zhang ◽  
Shengjue Deng ◽  
Guoxiang Pan ◽  
Yadong Wang ◽  
...  
Keyword(s):  
Solid State ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
Large Scale ◽  
Lithium Ion ◽  
High Rate ◽  
Template Method ◽  
Scale Production ◽  
Niobium Oxides ◽  
Large Scale Production

Herein, we firstly proposed multidimensional titanium niobium oxides (1D/2D/3D-TNO) via a versatile bioinspired template method, which employed as high-performance anodes for both liquid and solid state lithium ion batteries

scholarly journals High efficiency Mg2(Si,Sn)-based thermoelectric materials: scale-up synthesis, functional homogeneity, and thermal stability

RSC Advances ◽  
2019 ◽  
Vol 9 (40) ◽  
pp. 23021-23028 ◽  
Author(s):  
Nader Farahi ◽  
Christian Stiewe ◽  
D. Y. Nhi Truong ◽  
Johannes de Boor ◽  
Eckhard Müller
Keyword(s):  
Thermal Stability ◽  
Thermoelectric Materials ◽  
High Performance ◽  
High Efficiency ◽  
Scale Up ◽  
Synthesis Method ◽  
Industrial Applications ◽  
Magnesium Silicide ◽  
Functional Homogeneity ◽  
Scalable Synthesis

Considering the need for large quantities of high efficiency thermoelectric materials for industrial applications, a scalable synthesis method for high performance magnesium silicide based materials is proposed.

scholarly journals Leveraging bipolar effect to enhance transverse thermoelectricity in semimetal Mg2Pb for cryogenic heat pumping

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhiwei Chen ◽  
Xinyue Zhang ◽  
Jie Ren ◽  
Zezhu Zeng ◽  
Yue Chen ◽  
...  
Keyword(s):  
Solid State ◽  
Specific Heat ◽  
Power Factor ◽  
Thermoelectric Materials ◽  
High Performance ◽  
Narrow Gap ◽  
Pumping Power ◽  
Thermoelectric Power Factor ◽  
Thermoelectric Energy ◽  
Heat Pumping

AbstractToward high-performance thermoelectric energy conversion, the electrons and holes must work jointly like two wheels of a cart: if not longitudinally, then transversely. The bipolar effect — the main performance restriction in the traditional longitudinal thermoelectricity, can be manipulated to be a performance enhancer in the transverse thermoelectricity. Here, we demonstrate this idea in semimetal Mg2Pb. At 30 K, a giant transverse thermoelectric power factor as high as 400 μWcm−1K−2 is achieved, a 3 orders-of-magnitude enhancement than the longitudinal configuration. The resultant specific heat pumping power is ~ 1 Wg−1, higher than those of existing techniques at 10~100 K. A large number of semimetals and narrow-gap semiconductors making poor longitudinal thermoelectrics due to severe bipolar effect are thus revived to fill the conspicuous gap of thermoelectric materials for solid-state applications.

scholarly journals Anti-Perovskites for Solid-State Batteries: Recent Developments, Current Challenges and Future Prospects

2021 ◽  
Author(s):  
James Dawson ◽  
Theodosios Famprikis ◽  
Karen E Johnston
Keyword(s):  
Solid State ◽  
High Performance ◽  
Large Scale ◽  
Low Cost ◽  
Next Generation ◽  
Future Prospects ◽  
Recent Developments ◽  
Solid State Batteries ◽  
The Creation

Current commercial batteries cannot meet the requirements of next-generation technologies, meaning that the creation of new high-performance batteries at low cost is essential for the electrification of transport and large-scale...

scholarly journals Tailoring P-N Conversion in All-solid-state Polymer Composites with A Record Ionic Thermopower

2021 ◽  
Author(s):  
Cheng Chi ◽  
Meng An ◽  
Xin Qi ◽  
Yang Li ◽  
Ruihan Zhang ◽  
...  
Keyword(s):  
Solid State ◽  
Polymer Composites ◽  
High Voltage ◽  
High Performance ◽  
Large Scale ◽  
Ambient Air ◽  
Organic Polymer ◽  
Cyclic Stability ◽  
Simulation Results ◽  
The Relationship

Abstract All-solid-state organic polymer composites are promising ionic thermoelectric (i-TE) materials, however, the transition from aqueous to organic gelation always sacrifices their thermoelectric performance, especially the n-type thermopowers are severely unexplored, leaving the unrealized large-scale application of p-n integrated i-TE devices. Herein, we successfully developed all-solid-state PVDF-HFP/NaTFSI/PC (PhNP) with ultrahigh thermopower (Si) of +20 mV K-1. The experimental and molecular simulation results detailly specified the relationship between the interactions among ions and polymers and the highly enhanced thermopower. Meanwhile, a major scientific breakthrough in p-n conversion from +20 to -6 mV K-1 was achieved by incorporating tris(pentafluorophenyl)borane (TPFPB) to capture Na+ and TFSI- anions dominating the thermodiffusion process. As a result, an all-solid-state i-TE generator generated a high voltage over 2.6 V at ΔT=10 K and exhibited excellent cyclic stability under ambient air condition employing only 13 pairs of p-n couples, showing great potential for developing high-performance i-TE systems.

scholarly journals High Thermoelectric Performance of Cu-Doped PbSe-PbS System Enabled by High-Throughput Experimental Screening

Research ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Li You ◽  
Zhili Li ◽  
Quanying Ma ◽  
Shiyang He ◽  
Qidong Zhang ◽  
...  
Keyword(s):  
Experimental Technique ◽  
High Throughput ◽  
Thermoelectric Materials ◽  
High Performance ◽  
Large Scale ◽  
Transport Model ◽  
Thermoelectric Performance ◽  
Trial And Error ◽  
Lead Chalcogenides ◽  
Experimental Discovery

Recent advances in high-throughput (HTP) computational power and machine learning have led to great achievements in exploration of new thermoelectric materials. However, experimental discovery and optimization of thermoelectric materials have long relied on the traditional Edisonian trial and error approach. Herein, we demonstrate that ultrahigh thermoelectric performance in a Cu-doped PbSe-PbS system can be realized by HTP experimental screening and precise property modulation. Combining the HTP experimental technique with transport model analysis, an optimal Se/S ratio showing high thermoelectric performance has been efficiently screened out. Subsequently, based on the screened Se/S ratio, the doping content of Cu has been subtly adjusted to reach the optimum carrier concentration. As a result, an outstanding peak zT~1.6 is achieved at 873 K for a 1.8 at% Cu-doped PbSe0.6S0.4 sample, which is the superior value among the n-type Te-free lead chalcogenides. We anticipate that current work will stimulate large-scale unitization of the HTP experimental technique in the thermoelectric field, which can greatly accelerate the research and development of new high-performance thermoelectric materials.

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