You are currently on the new version of our website. Access the old version .

19 Results Found

  • Article
  • Open Access
7 Citations
3,460 Views
10 Pages

9 September 2020

Noble metal nitrides (NMNs) have important theoretical significance and potential application prospects due to their high bulk modulus and remarkable electrical properties. However, NMNs can only be synthesized under extreme conditions of ultrahigh p...

  • Article
  • Open Access
1,249 Views
17 Pages

15 March 2025

In this study, a combination of theoretical calculations and experiments were carried out to analyze boron phosphide materials. Amorphous boron powder and amorphous red phosphorus were used as raw materials to directly synthesize the target samples i...

  • Article
  • Open Access
8 Citations
2,661 Views
11 Pages

High Gas Pressure and High-Temperature Synthesis (HP-HTS) Technique and Its Impact on Iron-Based Superconductors

  • Mohammad Azam,
  • Manasa Manasa,
  • Andrzej Morawski,
  • Tomasz Cetner and
  • Shiv J. Singh

21 October 2023

The high-pressure growth technique generally plays an important role in the improvement of sample quality and the enhancement of various physical and magnetic properties of materials. The high gas pressure technique provides a large sample space (10–...

  • Article
  • Open Access
5 Citations
18,592 Views
13 Pages

A Comparative Analysis of Energy and Water Consumption of Mined versus Synthetic Diamonds

  • Vladislav Zhdanov,
  • Marina Sokolova,
  • Pavel Smirnov,
  • Lukasz Andrzejewski,
  • Julia Bondareva and
  • Stanislav Evlashin

28 October 2021

In our research, we analyzed the energy and water consumption in diamond mining and laboratory synthesis operations. We used publicly available reports issued by two market leaders, DeBeers and ALROSA, to estimate water and energy use per carat of a...

  • Article
  • Open Access
38 Citations
4,830 Views
22 Pages

Size-Dependent Thermal Stability and Optical Properties of Ultra-Small Nanodiamonds Synthesized under High Pressure

  • Evgeny Ekimov,
  • Andrey A. Shiryaev,
  • Yuriy Grigoriev,
  • Alexey Averin,
  • Ekaterina Shagieva,
  • Stepan Stehlik and
  • Mikhail Kondrin

22 January 2022

Diamond properties down to the quantum-size region are still poorly understood. High-pressure high-temperature (HPHT) synthesis from chloroadamantane molecules allows precise control of nanodiamond size. Thermal stability and optical properties of na...

  • Article
  • Open Access
14 Citations
2,844 Views
11 Pages

Optical Properties of Bulk Single-Crystal Diamonds at 80–1200 K by Vibrational Spectroscopic Methods

  • Zitao Shi,
  • Qilong Yuan,
  • Yuezhong Wang,
  • Kazuhito Nishimura,
  • Guojian Yang,
  • Bingxue Zhang,
  • Nan Jiang and
  • He Li

3 December 2021

Bulk diamonds show great potential for optical applications such as for use in infrared (IR) windows and temperature sensors. The development of optical-grade bulk diamond synthesis techniques has facilitated its extreme applications. Here, two kinds...

  • Article
  • Open Access
21 Citations
5,937 Views
15 Pages

9 August 2017

Responses of two types of single-crystal diamonds, prepared by chemical vapour deposition (CVD) and high pressure high temperature synthesis (HPHT) methods, respectively, to a nanosecond pulsed neodymium-doped yttrium aluminium garnet (Nd:YAG) laser...

  • Review
  • Open Access
32 Citations
6,771 Views
36 Pages

16 March 2022

Nowadays, synthetic diamonds are easy to fabricate industrially, and a wide range of methods were developed during the last century. Among them, the high-pressure–high-temperature (HP–HT) process is the most used to prepare diamond compac...

  • Article
  • Open Access
7 Citations
5,663 Views
9 Pages

Hydrogen Evolution Reaction of γ-Mo0.5W0.5 C Achieved by High Pressure High Temperature Synthesis

  • Yingfei Hu,
  • Gan Jia,
  • Shuailing Ma,
  • Jianqiang Hu,
  • Pinwen Zhu,
  • Tian Cui,
  • Zhaosheng Li and
  • Zhigang Zou

17 December 2016

For the first time, the hydrogen evolution reaction (HER) electrocatalytic performances of incompressible γ-Mo0.5W0.5C, prepared by high-pressure, high-temperature (HPHT) synthesis, were investigated in the electrolyte. The polarization curve of the...

  • Article
  • Open Access
3 Citations
2,009 Views
11 Pages

24 May 2023

In this research, we report the synthesis of Si–TmC–B/PCD composites using Si, B, and transition metal carbide particles (TmC) as binders at high pressure and high temperature (HPHT method, 5.5 GPa and 1450 °C). The microstructure, el...

  • Article
  • Open Access
13 Citations
4,077 Views
23 Pages

High-Pressure Synthesis and the Enhancement of the Superconducting Properties of FeSe0.5Te0.5

  • Mohammad Azam,
  • Manasa Manasa,
  • Tatiana Zajarniuk,
  • Ryszard Diduszko,
  • Tomasz Cetner,
  • Andrzej Morawski,
  • Jarosław Więckowski,
  • Andrzej Wiśniewski and
  • Shiv J. Singh

30 July 2023

A series of FeSe0.5Te0.5 bulk samples have been prepared using the high gas pressure and high-temperature synthesis (HP-HTS) method to optimize the growth conditions for the first time and investigated for their superconducting properties using struc...

  • Article
  • Open Access
9 Citations
4,342 Views
15 Pages

9 July 2022

High-Pressure (HP) technology allows new possibilities of processing by Spark Plasma Synthesis (SPS). This process is mainly involved in the sintering process and for bonding, growing and reaction. High-Pressure tools combined with SPS is applied for...

  • Article
  • Open Access
11 Citations
2,324 Views
12 Pages

20 August 2022

In this paper, we propose the synthesis of green amphiphilic catalysts based on two metals: Ni and Al. The amphiphilic characteristics of the obtained catalyst were provided by alkylbenzenesulfonic acid (ABSA). The end product was thoroughly characte...

  • Article
  • Open Access
7 Citations
3,108 Views
17 Pages

20 August 2023

The microstructure and residual stress of polycrystalline diamond compact (PDC) play crucial roles in the performance of PDCs. Currently, in-depth research is still to be desired on the evolution mechanisms of microstructure and residual stress durin...

  • Article
  • Open Access
14 Citations
2,968 Views
20 Pages

Enhanced Oil Recovery by In-Reservoir Hydrogenation of Carbon Dioxide Using Na-Fe3O4

  • Firdavs Aliev,
  • Temurali Kholmurodov,
  • Oybek Mirzayev,
  • Arash Tajik,
  • Nurali Mukhamadiev,
  • Olga Slavkina,
  • Nuriya Nourgalieva and
  • Alexey Vakhin

9 January 2023

In-situ conversion of carbon dioxide into value-added products is an essential process in terms of heavy oil upgrading and utilization of the main anthropogenic greenhouse gas. In this paper, we discuss a synthesis of sodium-coated magnetite (Fe3O4)...

  • Article
  • Open Access
352 Views
12 Pages

Correlating Boron Existence Morphologies with Electrocatalytic HER Activity in Ni-B Compounds Synthesized via High Pressure and High Temperature

  • Xinrong Guo,
  • Rui Bao,
  • Jiawen Lv,
  • Li Bai,
  • Guiqian Sun,
  • Huilian Liu,
  • Pinwen Zhu,
  • Yanli Chen,
  • Maobin Wei and
  • Qiang Tao

6 January 2026

Nickel boride compounds have attracted considerable attention in the field of electrocatalysis due to their unique electronic structures and excellent chemical stability. However, the difficulty in obtaining single-phase products under traditional ex...

  • Article
  • Open Access
3 Citations
2,317 Views
18 Pages

5 February 2023

We explore the important aspects of adventitious oxygen presence in nanopowders, as well as in the high-pressure and high-temperature-sintered nanoceramics of semiconductor kesterite Cu2ZnSnS4. The initial nanopowders were prepared via the mechanoche...

  • Article
  • Open Access
2 Citations
3,966 Views
24 Pages

Ultrathin Boron Growth onto Nanodiamond Surfaces via Electrophilic Boron Precursors

  • Krishna Govindaraju,
  • Tyanna Supreme,
  • Daniel N. Labunsky,
  • Nicole Martin,
  • Juan Miguel Del Rosario,
  • Alana Washington,
  • Ezhioghode O. Uwadiale,
  • Solomon Adjei,
  • Sandra Ladjadj and
  • Abraham Wolcott
  • + 7 authors

29 July 2024

Diamond as a templating substrate is largely unexplored, and the unique properties of diamond, including its large bandgap, thermal conductance, and lack of cytotoxicity, makes it versatile in emergent technologies in medicine and quantum sensing. Su...