Zigzag-Shaped Silver Nanoplates: Synthesis via Ostwald Ripening and Their Application in Highly Sensitive Strain Sensors

Abstract

Zigzag-shaped Ag nanoplates display unique anisotropic planar structures with unusual jagged edges and relatively large lateral dimensions. These characteristics make such nanoplates promising candidates for metal inks in printed electronics, which can be used for realizing stretchable electrodes. In the current work, we used a one-pot coordination-based synthetic strategy to synthesize zigzag-shaped Ag nanoplates. In the synthetic procedure, cyanuric acid was used both as a ligand of the Ag + ion, hence producing complex structures and controlling the kinetics of the reduction of the cation, and as a capping agent that promoted the lateral growth of the Ag nanoplates. Hence, cyanuric acid played a crucial role in the formation of zigzag-shaped nanoplates. In contrast to previous studies that reported oriented attachment to be the predominant mechanism responsible for the growth of zigzag-shaped nanoplates, Ostwald ripening was the dominant growth mechanism in the current work. Our findings on the particle morphology and crystalline structure of the Ag nanoplates motivated us to use them as conductive materials for stretchable strain sensors. Strain sensors based on nanocomposites of our zigzag-shaped Ag nanoplate and polydimethylsiloxane in the form of a sandwich structure were successfully produced by following a simple, low-cost, and solution-processable method. The strain sensors exhibited extremely high sensitivity (gauge factor ≈ 2000), high stretchability with a linear response (≈27%), and high reliability, all of which allowed the sensor to monitor diverse human motions, including joint movement and phonation.

Ti3C2Tx MXene-graphene composite films for wearable strain sensors featured with high sensitivity and large range of linear response

“…carbon black, carbon nanotubes and graphene) [14][15][16][17][18][19][20][21], metal materials (e.g. Ag nanowires and Au nanoplates) and so on [22][23][24][25][26][27][28][29]. However, a sensing material with an unitary morphology is generally subject to its own structural characteristics and cannot simultaneously take both sensitivity and stretchability into account.…”

Analisis Molekular dan Karakteristik Hidrogen Sianida (HCN)

“…Asam sianida akan larut dalam air (109; 110) , senyawa ini didalam air akanmembentuk ion CNdan ion H + .Senyawa dengan rumus kimia HCN cairan tak bewarna dan sangat beracun. Asam sianida memiliki bentuk molekul (115) linear (116)(117)(118)(119)(120) dengan momen dipol (121) Densitas (94; 125; 126) disebut juga dengan kerapatan merupakan massa per satuan volume suatu zat (211)(212)(213) pada suhu (127; 128) tertentu dan tidak hanya ditentukan gaya interaksi antar molekul (231)(232)(233)(234)(235) .Senyawa asam sianida memiliki sifat melarut sempurna pada air , dan sedikit larut dalam etanol. Ada beberapa faktor yang memengaruhi kelarutan suatu senyawa diantaranya sifat dari zat terlarut (solute) (139)(140)(141)(142)(143) dan pelarut (144) (solvent) (94; 129; 132; 145; 146) dimana zat terlarut yang bersifat polar (214)(215)(216) akan mudah larut dalam solvent (243)(244)(245)(246) atau yang disebut pelarut yang bersifat polar, begitupun sebaliknya, disini berlaku asas like dissolve like.…”

One-step green synthesis of 2D Ag-dendrite-embedded biopolymer hydrogel beads as a catalytic reactor

“…The diffraction spots with six-fold rotational symmetry imply that the plane is bounded by the {111} plane. 44 The XPS analysis results for the 2D dendrite are shown in Fig. 2(a), and the asymmetric spectra for the Ag 3d line conrm that the Ag was present only in the zero-valent state.…”