A variable-stiffness and healable pneumatic actuator

Abstract

Pneumatic-powered actuators are receiving increasing attention due to their widespread applications. However, their inherent low stiffness makes them incompetent in tasks requiring high load capacity or high force output. On...

Crystal Engineering of Silica Anode Achieving Intrinsic Zero‐Strain

“…The SLIC anode has the highest gravimetric energy density as far as we know among zero-/quasi-zerostrain anodes. [21,23,[39][40][41][42] Based on the thickness of electrodes (Figure S9a, Supporting Information), the volumetric capacities of graphite and SLIC anodes (all electrodes are not rolled) are calculated and shown in Figure 2e. Because of their comparable working voltage, the volumetric energy density of SLIC is also around twice that of the graphite anode.…”

“…By analyzing typical zero-strain anodes such as Li 4 Ti 5 O 12 , TiO 2 , and LiAl 5 O 8 , we identify their two main characteristics, namely ① large intracrystalline cavities for Li + storage and ② strong chemical bonds in the constructed lattices (662 kJ mol −1 for Ti─O and 512 kJ mol −1 for Al─O). [19][20][21] During lithiation, the large intracrystalline cavities accommodate the inserted Li + , and the strong chemical bonds ensure the integrity of the lattice framework. [14,22,23] Although Si─O has a high bonding energy (798 kJ mol −1 ), current silica anodes have narrow intracrystalline cavities (Figure S1, Supporting Information), that the insertion of Li + into silica lattice causes the intracrystalline cavities to swell and breaks the Si─O bonds.…”

Atomic-scale Ru anchored on chromium-shavings as a precursor for a pH-universal hydrogen evolution reaction electrocatalyst

“…First, reducing the size of ruthenium (Ru) nanoparticles has been identified as a method to enhance its atomic utilization efficiency, as documented in previous studies. [7][8][9] Additionally, there exists a need to augment the intrinsic activity of metal a College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, Shaanxi, China. E-mail: hanqingxin@sust.edu.cn, guanxiaoyu@sust.edu.cn, liji@sust.edu.cn b Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education & Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology, Shaanxi University of Science and Technology, Xi'an, 710021, China † Electronic supplementary information (ESI) available.…”

Ultra‐Stable Yellow Monolithic Perovskite Quantum Dots Film for Backlit Display

“…[15,16] As an alternative, perovskite QDs, one of the most popular star materials in recent years, have shown the advantages of high defect tolerance, high PLQY without core-shell structure, simple preparation, and low cost. [5,17,18] Moreover, PeQDs have ionic crystal feature with low formation energy and are easy to in situ nucleate/grow in polymers to achieve one-step production of PQDFs, which is conducive to substantial decline in fabrication cost and increase in yield rate. [19] Thus, PQDFs, appeared as price-competitive alternative materials with Cd-free and Pb content below 40 ppm (RoHS limitation for Pb is 1000 ppm), have been successfully applied in LCD technology.…”