Structural regulation strategies of nitrogen reduction electrocatalysts

S Chen, J Guan - Chinese Journal of Catalysis, 2024 - Elsevier
Ammonia is a carrier of high energy density and a good hydrogen storage substance. The
Haber-Bosch process accounts for 90% of the world's ammonia production, which relies on …

Subsurface nitrogen bonding and thermal stability of low-energy nitrogen implanted H-Diamond (100) surfaces studied by XPS and HREELS

MK Kuntumalla, M Fischer, A Hoffman - Surface Science, 2024 - Elsevier
We investigate the surface/subsurface bonding, retention, and thermal stability of nitrogen in
H-Diamond (100) implanted with 200 eV N 2+ at a dose of 1× 10 14 ions/cm 2 (D1) in …

Influence of 1 keV N2+ Implantation on Nitrogen Bonding, Defect Formation, and Thermal Stability of the Polycrystalline Diamond Near-Surface Region Studied by …

MK Kuntumalla, M Fischer, G Gani… - The Journal of Physical …, 2024 - ACS Publications
In this study, the near-surface physicochemical properties of low-energy nitrogen-implanted
polycrystalline diamond (PCD) and their evolution with the annealing temperature were …

Nitrogen, oxygen, and hydrogen bonding and thermal stability of ambient exposed nitrogen-terminated H-diamond (111) surfaces studied by XPS and HREELS

MK Kuntumalla, S Michaelson, A Hoffman - Surface Science, 2024 - Elsevier
We report on the chemical composition, bonding, and in-vacuum thermal stability (up to
1000° C) of nitrogen plasma terminated H-Diamond (111)(H-Di (111)) surfaces followed by …

Entrapment and thermal stability of low energy Argon implanted into diamond studied by in-situ X-ray photoelectron spectroscopy and thermal programmed desorption

M Fischer, MK Kuntumalla, G Gani, A Hoffman - Applied Surface Science, 2023 - Elsevier
The retention and thermal stability of Ar implanted into polycrystalline diamond surfaces with
700 and 5000 eV Ar ions, with high dose (HD) and low dose (LD) of 10 16 and 10 14 …

Nitrogen-terminated milled nanodiamond surfaces by plasma exposure

MK Kuntumalla, A Chemin, M Finas… - The Journal of …, 2024 - ACS Publications
This study investigates surface modifications of hydrogen-terminated milled nanodiamond
(H-MND) drop-cast films by microwave (MW) and radio frequency (RF) nitrogen plasma …

Nitrogen adsorption induced surface kinetics changes of diamond growth by microwave plasma CVD

Y Teng, W Zhao, K Tang, K Yang, G Zhao, S Zhu… - Diamond and Related …, 2024 - Elsevier
The strong temperature dependence of the contribution of nitrogen to diamond growth
enhancement by microwave plasma chemical vapor deposition (MPCVD) have been firstly …

Bonding, retention and thermal stability of shallow nitrogen in diamond (100) by low-energy nitrogen implantation

MK Kuntumalla, G Gani, M Fischer, A Hoffman - Surfaces and Interfaces, 2023 - Elsevier
We investigate the sub-surface bonding, retention, and thermal stability of nitrogen in
diamond (100) implanted with 200 and 800 eV N 2+ at room temperature (RT) and 600° C at …

[HTML][HTML] Depth profiling of microwave nitrogen-terminated polycrystalline diamond surfaces by energy-dependent X-ray photoelectron spectroscopy

A Chemin, MK Kuntumalla, M Brzhezinskaya… - Applied Surface …, 2024 - Elsevier
Nitrogen-terminated diamonds hold promise for stabilizing near-surface NV− centers, which
is essential for reliable quantum sensing. Among various surface preparation methods …

Boosted the thermal conductivity of liquid metal via bridging diamond particles with graphite

C Zeng, X Shen, K Shen, L Bao, G Liao… - Journal of Colloid and …, 2025 - Elsevier
The liquid metal (LM) composite is regarded as having potential and wide-ranging
applications in electronic thermal management. Enhancing the thermal conductivity of LM is …