Rational design from materials to devices enables an efficiency of 10.5% based on thermoelectric (Bi, Sb)2Te3 and Mg3(Bi, Sb)2 for power generation
文献信息
Yuxin Sun, Yuke Zhu, Hao Wu, Nuo Qu, Liangjun Xie, Jianbo Zhu, Zihang Liu, Qian Zhang, Wei Cai, Fengkai Guo, Jiehe Sui
p-Type (Bi, Sb)2Te3 is the most excellent thermoelectric material near room temperature; however, the drastically declined performance makes it incapable of coping with low-grade waste heat recovery scenarios above 500 K. Herein, firstly, a great advance in thermoelectric performance is realized through reasonable composition control and microstructure design, including lithium acceptor doping to improve the electrical transport performance and subsequent Te addition to suppress the donor-like effect to further fine-tune the power factor, as well as the construction of dispersed nanopores, which leads to very low thermal conductivity. As a result, a highly competitive ZT of 1.42 at 373 K and a ZTave of 1.23 from 303 K to 523 K are achieved concurrently. Secondly, (Bi, Sb)2Te3 and its higher-temperature analogue Sb2Te3 are organized in a segmented structure by one-step sintering to broaden the temperature range. Similarly, optimized Mg3(Sb, Bi)2 materials with different high-performance temperature ranges are used to prepare the n-type segmented leg. Finally, a 2-pair module is fabricated, showing an efficiency of up to 10.5% and a power density of 0.53 W cm−2 with a temperature difference of 380 K. This work provides robust evidence for the high potential of (Bi, Sb)2Te3/Mg3(Bi, Sb)2 segmented modules for waste heat recovery.
相关文献
Morphology and chemical states of size-selected Ptn clusters on an aluminium oxide film on NiAl(110)
Atsushi Beniya, Noritake Isomura, Hirohito Hirata, Yoshihide Watanabe
DOI: 10.1039/C4CP01767F
A novel reduction approach to fabricate quantum-sized SnO2-conjugated reduced graphene oxide nanocomposites as non-enzymatic glucose sensors
Yixing Ye, Panpan Wang, Enmei Dai, Jun Liu, Zhenfei Tian, Changhao Liang, Guosheng Shao
DOI: 10.1039/C4CP00554F
Crystal polymorphism: dependence of oxygen diffusion through 2D ordered Co nanocrystals
DOI: 10.1039/C3CP54656J
Propene epoxidation with O2 or H2–O2 mixtures over silver catalysts: theoretical insights into the role of the particle size
M. Boronat, A. Pulido, P. Concepción, A. Corma
DOI: 10.1039/C4CP02198C
Systematic study on novel catalytic activity of CO oxidation driven by strong electronic interaction between the monatomic-layered Pt30 cluster disk and the Si substrate
Hisato Yasumatsu, Nobuyuki Fukui
DOI: 10.1039/C4CP02221A
Structural dynamics effects on the ultrafast chemical bond cleavage of a photodissociation reaction
María E. Corrales, Garikoitz Balerdi, Rebeca de Nalda, Luis Bañares, Ahmed H. Zewail
DOI: 10.1039/C3CP54677B
Solid state effects on the electronic structure of H2OEP
G. Di Santo, M. Caputo, A. Goldoni, M. Kumar, M. Pedio
DOI: 10.1039/C4CP03450C
Unveiling the effects of post-deposition treatment with different alkaline elements on the electronic properties of CIGS thin film solar cells
Fabian Pianezzi, Patrick Reinhard, Adrian Chirilă, Benjamin Bissig, Shiro Nishiwaki, Stephan Buecheler, Ayodhya N. Tiwari
DOI: 10.1039/C4CP00614C
High-density biosynthetic fuels: the intersection of heterogeneous catalysis and metabolic engineering
Benjamin G. Harvey, Heather A. Meylemans, Raina V. Gough, Roxanne L. Quintana, Michael D. Garrison, Thomas J. Bruno
DOI: 10.1039/C3CP55349C
Computational studies of electrochemical CO2 reduction on subnanometer transition metal clusters
Cong Liu, Haiying He, Peter Zapol, Larry A. Curtiss
DOI: 10.1039/C4CP02690J
您可能还喜欢
硅烷偶联剂ZQ-172(CAS号:1067-53-4)的主要用途是什么?
硅烷偶联剂ZQ-172主要用于增强无机填料与有机高分子材料之间的相容性,常见于橡胶、塑料、涂料和胶黏剂等复合体系中。其硅氧烷基团可与玻璃纤维、二氧化硅等无机物表...
如何处理含有6-(2,4-二甲氧基苯基)-2-吡啶甲醇(CAS号:887981-31-9)的废料?
对于含有该化合物的废料,首先应收集并分类存放,避免与其它化学品混合。在处理前,需进行必要的检测,确定其含量和性质。随后,可以采用化学氧化、生物降解或物理吸附等方...
甲砜霉素甘氨酸酯盐酸盐(CAS号:2611-61-2)的物理化学性质是什么?
该化合物为白色或类白色结晶性粉末,不溶于水,溶于乙醇和氯仿。分子量为403.03 g/mol。它具有手性,含有三个手性中心,分别为2S,3R构型。该化合物在酸性...
如何储存反式-环丙烷-1,2-二胺双盐酸盐(CAS号:3187-76-6)?
反式-环丙烷-1,2-二胺双盐酸盐应存放在阴凉、干燥且通风良好的地方,避免阳光直射。储存容器应密封,以防挥发和受潮。同时,应远离火源和热源,确保储存环境温度不超...
什么是吩嗪硫酸甲酯(CAS号:299-11-6)?
吩嗪硫酸甲酯是一种有机化合物,化学结构由吩嗪环与甲酯基团构成,分子式为C10H9N2SO4。其为吩嗪类衍生物,具有典型的芳香环结构和酯基官能团,常作为氧化剂或染...
N1-异丙基二乙烯三胺(CAS号:207399-20-0)的市场或研究趋势如何?
随着绿色化学和环保意识的提高,N1-异丙基二乙烯三胺的研究趋势正向低毒、环保的方向发展。市场趋势方面,由于其在功能性材料、药物合成等领域的需求,预计其市场需求将...
4,4-Dimethyl-5,6-dihydro-4H-cyclopenta[d][1,3]thiazol-2-amine(CAS号:1182284-47-4)应用于哪些行业?
该化合物在医药、聚合物、传感器和半导体领域有潜在的应用。在医药领域,作为一种新型的噻唑类化合物,它可能具有抗炎、抗病毒等生物活性。在聚合物领域,该化合物可用作增...
处理5-(PYRIDIN-4-YL)-OXAZOL-2-YLAMINE(CAS号:1014629-83-4)时应注意哪些实验室安全事项?
在处理5-(吡啶-4-基)-2-氧代-1-氧杂环己烷-3-胺时,应佩戴防护眼镜、手套和防护服。实验应在通风橱中进行,以避免吸入有害气体。如果发生泄露,应立即用大...
什么是伊托必利N-氧化物(CAS号:141996-98-7)?
伊托必利N-氧化物是一种化学化合物,其分子结构是伊托必利的N位进行氧化处理后的产物。它具有一定的生物活性,主要用于药物研究和开发。
氟氯烟酸(CAS号:82671-06-5)安全吗?
氟氯烟酸属于有机氯化物,具有一定的毒性,需谨慎处理。在操作过程中,应佩戴防护手套、护目镜和实验服,避免吸入其粉尘或蒸汽。接触皮肤或眼睛可能导致刺激,应采取适当的...
来源期刊
Energy & Environmental Science

Energy & Environmental Science is an international journal dedicated to publishing exceptionally important and high quality, agenda-setting research tackling the key global and societal challenges of ensuring the provision of energy and protecting our environment for the future. The scope is intentionally broad and the journal recognises the complexity of issues and challenges relating to energy conversion and storage, alternative fuel technologies and environmental science. For work to be published it must be linked to the energy-environment nexus and be of significant general interest to our community-spanning readership. All scales of studies and analysis, from impactful fundamental advances, to interdisciplinary research across the (bio)chemical, (bio/geo)physical sciences and chemical engineering disciplines are welcomed. Topics include, but are not limited to, the following: Solar energy conversion and photovoltaics Solar fuels and artificial photosynthesis Fuel cells Hydrogen storage and (bio) hydrogen production Materials for energy systems Capture, storage and fate of CO2, including chemicals and fuels from CO2 Catalysis for a variety of feedstocks (for example, oil, gas, coal, biomass and synthesis gas) Biofuels and biorefineries Materials in extreme environments Environmental impacts of energy technologies Global atmospheric chemistry and climate change as related to energy systems Water-energy nexus Energy systems and networks Globally applicable principles of energy policy and techno-economics










![Sodium 3-[(E)-(4-anilinophenyl)diazenyl]benzenesulfonate structure Sodium 3-[(E)-(4-anilinophenyl)diazenyl]benzenesulfonate structure](https://cnstatic.chemtradehub.com/structs/587/587-98-4-035f.webp)



