TY - JOUR
T1 - Efficient energy generation from a sweat-powered, wearable, MXene-based hydroelectric nanogenerator
AU - Su, Hongli
AU - Usman, Ken Aldren S.
AU - Nilghaz, Azadeh
AU - Bu, Yiming
AU - Tang, Kunning
AU - Dai, Liming
AU - Liu, Dan
AU - Razal, Joselito M.
AU - Li, Jingliang
AU - More Authors, null
PY - 2024
Y1 - 2024
N2 - Hydroelectric nanogenerators (HENGs) utilize the synergy between conductive nanomaterials and hydrodynamic flow to generate electricity, but their applications are limited by low output power density. Here, a high-performance HENG is developed by employing single-layer MXene (SMX) nanosheets on wool cloth. The SMX-based HENGs exhibit a maximum energy density of 0.683 mW cm−2, a current of 1.994 mA, and a voltage of 0.687 V, sufficient to power small wearable electronics. Moreover, the hydrophilicity of the HENGs is maintained due to the addition oxidized ketjen black nanoparticles to the SMX matrix. This is attributed to the functional groups (e.g., –COOH and –OH) on OKB, which are important for efficient ion transport and maintaining a high steady-state power density. Important insights into energy generation for the development of high-efficiency HENGs for practical applications have been gained from numerical simulation using COMSOL multiphysics.
AB - Hydroelectric nanogenerators (HENGs) utilize the synergy between conductive nanomaterials and hydrodynamic flow to generate electricity, but their applications are limited by low output power density. Here, a high-performance HENG is developed by employing single-layer MXene (SMX) nanosheets on wool cloth. The SMX-based HENGs exhibit a maximum energy density of 0.683 mW cm−2, a current of 1.994 mA, and a voltage of 0.687 V, sufficient to power small wearable electronics. Moreover, the hydrophilicity of the HENGs is maintained due to the addition oxidized ketjen black nanoparticles to the SMX matrix. This is attributed to the functional groups (e.g., –COOH and –OH) on OKB, which are important for efficient ion transport and maintaining a high steady-state power density. Important insights into energy generation for the development of high-efficiency HENGs for practical applications have been gained from numerical simulation using COMSOL multiphysics.
KW - hydroelectric nanogenerators
KW - single-layer MXene nanosheets
KW - electrodynamic conversion
KW - energy generation
KW - COMSOL
UR - http://www.scopus.com/inward/record.url?scp=85191797582&partnerID=8YFLogxK
U2 - 10.1016/j.device.2024.100356
DO - 10.1016/j.device.2024.100356
M3 - Article
VL - 2
JO - Device
JF - Device
IS - 5
M1 - 100356
ER -