Reacting Mn3O4 powders with quaternary ammonium hydroxides to form two-dimensional birnessite flakes

MQ Hassig, T Kono, M Carey, K Sudhakar… - Ceramics …, 2023 - Elsevier
There is a current interest in synthesis of two-dimensional (2D) materials that would be cost-
efficient to scale to industry production. In this study, we report on a bottom-up approach to …

Scalable, inexpensive, one-pot, facile synthesis of crystalline two-dimensional birnessite flakes

HO Badr, K Montazeri, T El-Melegy, V Natu, M Carey… - Matter, 2022 - cell.com
Synthesis of two-dimensional (2D) materials that is readily scalable, cost-effective, and eco-
friendly is important from both scientific and industrial viewpoints. Currently, these 2D …

One-dimensional nanostructures from layered manganese oxide

OP Ferreira, L Otubo, R Romano… - Crystal growth & …, 2006 - ACS Publications
In this paper, we report the preparation of one-dimensional (1D) nanostructures from layered
compounds (2D). γ-MnOOH nanorods were successfully prepared from platelike layered Na …

Single-Crystal Growth of Layered Birnessite-Type Manganese Oxides and Their Delamination into MnO2 Nanosheets

H Yano, A Aimi, N Sakai, T Sasaki… - Crystal Growth & …, 2021 - ACS Publications
We have successfully grown hexagonally developed K x MnO2 single crystals (50 μm in
lateral size and 10 μm in thickness) by slow cooling from 1273 to 1173 K at a rate of 0.5 K/h …

Synthesis of birnessite in the presence of phosphate, silicate, or sulfate

Q Wang, X Liao, W Xu, Y Ren, KJ Livi… - Inorganic Chemistry, 2016 - ACS Publications
Layered manganese (Mn) oxides, such as birnessite, are versatile materials in industrial
applications and common minerals mediating elemental cycling in natural environment …

A fast sol–gel synthesis leading to highly crystalline birnessites under non-hydrothermal conditions

S Ziller, JF von Bülow, S Dahl, M Linden - Dalton Transactions, 2017 - pubs.rsc.org
Manganese oxides from the compound family of layered birnessites have attracted interest
for their use as cathode materials in Li-ion batteries, as supercapacitors, and as water …

The effect of stirring on the morphology of birnessite nanoparticles

MA Cheney, PK Bhowmik, S Moriuchi… - Journal of …, 2008 - Wiley Online Library
The effect of mechanical stirring on the morphology of hexagonal layer‐structure birnessite
nanoparticles produced from decomposition of KMnO4 in dilute aqueous H2SO4 is …

A new method of synthesizing black birnessite nanoparticles: from brown to black birnessite with nanostructures

MA Cheney, PK Bhowmik, S Qian… - Journal of …, 2008 - digitalcommons.odu.edu
A new method for preparing black birnessite nanoparticles is introduced. The initial
synthesis process resembles the classical McKenzie method of preparing brown birnessite …

Preparation of nanometer-sized manganese oxides by intercalation of organic ammonium ions in synthetic birnessite OL-1

Q Gao, O Giraldo, W Tong, SL Suib - Chemistry of materials, 2001 - ACS Publications
Potassium manganese oxide materials having the synthetic birnessite structure K-OL-1 were
synthesized by reduction methods. K-OL-1 has been ion-exchanged with H+ to produce H …

Characterisation of hexagonal birnessite with a new and rapid synthesis method—comparison with traditional synthesis

Z Qin, X Chen, N Ouyang, S Lan, G Jiang, J Zhang… - RSC …, 2019 - pubs.rsc.org
Birnessite is one of the most important manganese oxides that can control the geochemical
behaviors of pollutants or can be applied to form industrial products. Many studies have …