TY - JOUR
T1 - Holocellulose Nanofibril-Assisted Intercalation and Stabilization of Ti3C2T xMXene Inks for Multifunctional Sensing and EMI Shielding Applications
AU - Chen, Yian
AU - Li, Yuehu
AU - Liu, Yu
AU - Chen, Pan
AU - Zhang, Cunzhi
AU - Qi, Haisong
N1 - Publisher Copyright:
© 2021 American Chemical Society.
PY - 2021/8/4
Y1 - 2021/8/4
N2 - 2D transition-metal carbide/nitride (MXene)-based conductive inks have received tremendous attention due to their high electrical conductivity and other fascinating properties. However, the unstability of MXene-based inks, low fabrication yield of MXene flakes, and poor mechanical properties of printed products strongly limit the proper and large-scale printing of MXene patterns. Here, functioning as a dispersant, an intercalation agent, and reinforcement, sulfated holocellulose nanofibrils (HCNFs) with a unique "core-shell"structure are conducive to the fabrication, storage, and subsequent printing of MXene inks. The MXene/HCNF (MH) ink with high yield (97.2%), good stability, and good homogeneity exhibits excellent printing performance (high resolution and good coverage). It could print various products with adjustable thicknesses and electrical conductivity properties on different substrates. The products printed by the MH ink can be applied as multifunctional sensing materials responding to multiple external stimuli, such as stress/strain, blowing, humidity, and temperature. Furthermore, the resulting products also display a high electromagnetic interference (EMI) shielding effectiveness (SE) of 54.3 dB at a shallow thickness of 100 μm and an excellent specific EMI SE of SSE/t of 7159 dB cm2 g-1.
AB - 2D transition-metal carbide/nitride (MXene)-based conductive inks have received tremendous attention due to their high electrical conductivity and other fascinating properties. However, the unstability of MXene-based inks, low fabrication yield of MXene flakes, and poor mechanical properties of printed products strongly limit the proper and large-scale printing of MXene patterns. Here, functioning as a dispersant, an intercalation agent, and reinforcement, sulfated holocellulose nanofibrils (HCNFs) with a unique "core-shell"structure are conducive to the fabrication, storage, and subsequent printing of MXene inks. The MXene/HCNF (MH) ink with high yield (97.2%), good stability, and good homogeneity exhibits excellent printing performance (high resolution and good coverage). It could print various products with adjustable thicknesses and electrical conductivity properties on different substrates. The products printed by the MH ink can be applied as multifunctional sensing materials responding to multiple external stimuli, such as stress/strain, blowing, humidity, and temperature. Furthermore, the resulting products also display a high electromagnetic interference (EMI) shielding effectiveness (SE) of 54.3 dB at a shallow thickness of 100 μm and an excellent specific EMI SE of SSE/t of 7159 dB cm2 g-1.
KW - EMI shielding
KW - Holocellulose
KW - MXene
KW - intercalation
KW - multifunctional sensor
KW - printing inks
UR - http://www.scopus.com/inward/record.url?scp=85112339605&partnerID=8YFLogxK
U2 - 10.1021/acsami.1c10583
DO - 10.1021/acsami.1c10583
M3 - Article
C2 - 34286583
AN - SCOPUS:85112339605
SN - 1944-8244
VL - 13
SP - 36221
EP - 36231
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
IS - 30
ER -