2026-10-11T03:34:23Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33850168 2026-09-16T13:26:25Z portal_1197 item_type_3 month_year_09_2026

Data to support: 'Electron beam transparent boron doped diamond electrodes for combined electrochemistry─transmission electron microscopy' Julie V. Macpherson (1517371) Haytham E. M. Hussein (17245795) Georgia Wood (13046137) Daniel Houghton (13046140) Marc Walker (1429663) Yisong Han (1411153) Pei Zhao (487688) Richard Beanland (768962) Boron Diamonds, Artificial -- Research Transmission electron microscopy Migrated from ePrints The majority of carbon based transmission electron microscopy (TEM) platforms (grids) have a significant sp2 carbon component. Here, we report a top down fabrication technique for producing freestanding, robust, electron beam transparent and conductive sp3 carbon substrates from boron doped diamond (BDD) using an ion milling/polishing process. X-ray photoelectron spectroscopy and electrochemical measurements reveal the sp3 carbon character and advantageous electrochemical properties of a BDD electrode are retained during the milling process. TEM diffraction studies show a dominant (110) crystallographic orientation. Compared with conventional carbon TEM films on metal supports, the BDD-TEM electrodes offer superior thermal, mechanical and electrochemical stability properties. For the latter, no carbon loss is observed over a wide electrochemical potential range (up to 1.80 V vs RHE) under prolonged testing times (5 h) in acid (comparable with accelerated stress testing protocols). This result also highlights the use of BDD as a corrosion free electrocatalyst TEM support for fundamental studies, and in practical energy conversion applications. High magnification TEM imaging demonstrates resolution of isolated, single atoms on the BDD-TEM electrode during electrodeposition, due to the low background electron scattering of the BDD surface. Given the high thermal conductivity and stability of the BDD-TEM electrodes, in situ monitoring of thermally induced morphological changes is also possible, shown here for the thermally induced crystallization of amorphous electrodeposited manganese oxide to the electrochemically active γ-phase. 2022-10-19T00:00:00Z Dataset Dataset 10.1021/acsmeasuresciau.2c00027 https://figshare.com/articles/dataset/Data_to_support_Electron_beam_transparent_boron_doped_diamond_electrodes_for_combined_electrochemistry_transmission_electron_microscopy_/33850168 CC BY 4.0