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From the perspective of growth units, the growth mechanism of Mg_2(OH)_2CO_3·3H_2O whisker is investigated in this paper. Results show that the growth morphology of Mg_2(OH)_2CO_3·3H_2O whisker is consistent with the model of anion coordination polyhedron growth units. The growth solution Raman shift of Mg_2(OH)_2CO_3·3H_2O was monitored using Raman spectroscopy. The growth units are [Mg-(OH)_4]_2- and H_2CO_3. The growth process of Mg_2(OH)_2CO_3·3H_2O whisker is as follows: growth unit [Mg-(OH)_4]_2- first incorporates into the larger dimension [Mg-(OH)_4]2-n, then the [Mg-(OH)_4]2-n combines with H_2CO_3 into a linear skeleton Mg2(OH)2CO3 in the same line. Mg_2(OH)_2CO_3 combines with H_2O by hydrogen bonds and ultimately transforms into Mg_2(OH)_2CO_3·3H_2O whisker. Magnesium carbonate whiskers have a layered structure, each of which is made of magnesium, carbon, oxygen, with H_2O in between each layer. When skeletons are superimposed within the same plane as a parallelepiped one, they grow into solid cuboid-shaped whiskers. When the parallelepiped skeletons planes combine with each other through the cascading links, they grow into hollow cylindrical whiskers.
From the perspective of growth units, the growth mechanism of Mg_2 (OH) _2CO_3 · 3H_2O whisker is investigated in this paper. Results show that the growth morphology of Mg_2 (OH) _2CO_3 · 3H_2O whisker is consistent with the model of anion coordination polyhedron growth The growth solution of Mg_2 (OH) _2CO_3 · 3H_2O was monitored using Raman spectroscopy. The growth units are [Mg- (OH) _4] _2- and H_2CO_3. The growth process of Mg_2 (OH) _2CO_3 · 3H_2O whisker is [Mg- (OH) _4] 2-n incorporation with H 2 CO 3 Mg_2 (OH) _2CO_3 combines with H_2O by hydrogen bonds and ultimately transforms into Mg_2 (OH) _2CO_3 · 3H_2O whisker. Magnesium carbonate whiskers have a layered structure, each of which is is made of magnesium, carbon, oxygen, with H_2O in between each layer. When skeletons are superimposed within the same plane as a parallelepiped one, they grow into solid cuboid-shaped whiskers. When the parallelepiped skeletons planes combine with each other through the cascading links, they grow into hollow cylindrical whiskers.