Abstract
Recently, recycling energy from wasted heat with pyroelectric materials has received significant attention. However, pyroelectric energy harvesters generally suffer from a low energy efficiency due to the low rates of heat transfer. Here, we report high-performance thermal energy harvesting using novel hybrid pyroelectric ceramics with greatly improved heat transfer and rate of temperature changes. This is achieved by evenly dispersing 0.1 wt% hexagonal boron nitride (hBN) nanosheets into a Pb[(Mn 1/3 Nb 2/3 ) 1/2 (Mn 1/3 Sb 2/3 ) 1/2 ] 0.04 (Zr 0.95 Ti 0.05 ) 0.96 O 3 (lead magnesium niobate-lead antimony-manganese-lead zirconate titanate: PMN-PMS-PZT) ceramic matrix. Due to the vibrations of whole chain and phonon scattering, heat transfer through the hybrid crystalline chain is more efficient than that of unfilled PMN-PMS-PZT. It is demonstrated that the harvested power was increased by up to 65.6%. This work paved an efficient and cost-effective way to largely improve the traditional pyroelectric ceramic for thermal energy harvesting.
| Language | English |
|---|---|
| Pages | 144-152 |
| Number of pages | 9 |
| Journal | Nano Energy |
| Volume | 60 |
| Early online date | 13 Mar 2019 |
| DOIs | |
| Status | Published - 30 Jun 2019 |
Keywords
- Hexagonal boron nitride
- Pyroelectric ceramic
- Thermal conductivity
- Thermal energy harvesting
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Materials Science(all)
- Electrical and Electronic Engineering
Cite this
Hexagonal boron nitride nanosheets doped pyroelectric ceramic composite for high-performance thermal energy harvesting. / Wang, Qingping; Bowen, Chris R.; Lewis, Rhodri; Chen, Jun; Lei, Wen; Zhang, Haibo; Li, Ming Yu; Jiang, Shenglin.
In: Nano Energy, Vol. 60, 30.06.2019, p. 144-152.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Hexagonal boron nitride nanosheets doped pyroelectric ceramic composite for high-performance thermal energy harvesting
AU - Wang, Qingping
AU - Bowen, Chris R.
AU - Lewis, Rhodri
AU - Chen, Jun
AU - Lei, Wen
AU - Zhang, Haibo
AU - Li, Ming Yu
AU - Jiang, Shenglin
PY - 2019/6/30
Y1 - 2019/6/30
N2 - Recently, recycling energy from wasted heat with pyroelectric materials has received significant attention. However, pyroelectric energy harvesters generally suffer from a low energy efficiency due to the low rates of heat transfer. Here, we report high-performance thermal energy harvesting using novel hybrid pyroelectric ceramics with greatly improved heat transfer and rate of temperature changes. This is achieved by evenly dispersing 0.1 wt% hexagonal boron nitride (hBN) nanosheets into a Pb[(Mn 1/3 Nb 2/3 ) 1/2 (Mn 1/3 Sb 2/3 ) 1/2 ] 0.04 (Zr 0.95 Ti 0.05 ) 0.96 O 3 (lead magnesium niobate-lead antimony-manganese-lead zirconate titanate: PMN-PMS-PZT) ceramic matrix. Due to the vibrations of whole chain and phonon scattering, heat transfer through the hybrid crystalline chain is more efficient than that of unfilled PMN-PMS-PZT. It is demonstrated that the harvested power was increased by up to 65.6%. This work paved an efficient and cost-effective way to largely improve the traditional pyroelectric ceramic for thermal energy harvesting.
AB - Recently, recycling energy from wasted heat with pyroelectric materials has received significant attention. However, pyroelectric energy harvesters generally suffer from a low energy efficiency due to the low rates of heat transfer. Here, we report high-performance thermal energy harvesting using novel hybrid pyroelectric ceramics with greatly improved heat transfer and rate of temperature changes. This is achieved by evenly dispersing 0.1 wt% hexagonal boron nitride (hBN) nanosheets into a Pb[(Mn 1/3 Nb 2/3 ) 1/2 (Mn 1/3 Sb 2/3 ) 1/2 ] 0.04 (Zr 0.95 Ti 0.05 ) 0.96 O 3 (lead magnesium niobate-lead antimony-manganese-lead zirconate titanate: PMN-PMS-PZT) ceramic matrix. Due to the vibrations of whole chain and phonon scattering, heat transfer through the hybrid crystalline chain is more efficient than that of unfilled PMN-PMS-PZT. It is demonstrated that the harvested power was increased by up to 65.6%. This work paved an efficient and cost-effective way to largely improve the traditional pyroelectric ceramic for thermal energy harvesting.
KW - Hexagonal boron nitride
KW - Pyroelectric ceramic
KW - Thermal conductivity
KW - Thermal energy harvesting
UR - http://www.scopus.com/inward/record.url?scp=85063051306&partnerID=8YFLogxK
U2 - 10.1016/j.nanoen.2019.03.037
DO - 10.1016/j.nanoen.2019.03.037
M3 - Article
VL - 60
SP - 144
EP - 152
JO - Nano Energy
T2 - Nano Energy
JF - Nano Energy
SN - 2211-2855
ER -