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CityUHK researchers transform vibrations into clean fuels and chemicals through piezosynthesis

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HONG KONG, July 24, 2026 /PRNewswire/ — From ocean waves and flowing rivers to the systems used to transport and treat water, vibrations are everywhere. But can vibrations do more than just shake water? Can they split water or drive the production of useful chemicals from water?

A research team led by Professor Sai Kishore Ravi from the School of Energy and Environment (SEE) at City University of Hong Kong (CityUHK) has successfully demonstrated how mechanical vibrations can be harnessed to drive the production of useful chemicals from water.

The team showcased these breakthroughs in two recent studies: one on vibration-driven hydrogen peroxide generation, published in Nature Communications under the title “Bulk polarization field and interfacial electron sink in MXene-modified iodine-doped Bi4Ti3O12 enhance piezocatalytic H2O2 generation“, and another on hydrogen production, in Advanced Energy Materials under the title “Enhanced Lattice Polarization and Directed Charge Transport Toward Pt Surface Sites Accelerate the Volmer Step in Piezocatalytic H2 Evolution on Co-Doped BiFeO3“.

The studies contribute to the emerging field of piezosynthesis, where mechanical deformation in piezoelectric materials generates charges that can be directed to drive redox reactions in water. A key challenge is preventing the loss of these charges through recombination before they reach surface reaction sites.

To overcome this, the team developed a piezoelectric bismuth ferrite-based system for vibration-driven hydrogen production. By applying structural tuning strategies, such as controlled doping and cocatalyst loading, they improved charge utilisation and surface reaction kinetics, achieving a sixteen-fold increase in hydrogen generation compared to the starting material. Additionally, they developed a hydrogen peroxide–producing system based on a layered bismuth titanate structure operating under mechanical vibration. The system delivered a hydrogen peroxide production rate of 5,890 μmol g⁻¹ h⁻¹ without adding sacrificial chemicals to drive the reaction. The generated product was shown to degrade pollutants and inactivate bacteria, highlighting its potential for water treatment applications.

“Despite the different chemical products, the two studies rely on the same principle of controlling how vibration-generated charges are separated and directed to drive chemical transformations,” explained Professor Ravi. “Our current studies use controlled ultrasonic vibrations to deepen our understanding of the underlying science. The next challenge is to move beyond the laboratory reactor and explore systems that can operate using vibrations present in the environment.”

This prospect is compelling for coastal cities like Hong Kong. Preliminary studies are underway on floating catalytic platforms designed to harness vibrations from ocean waves, an approach the team is now investigating for future real-world applications of piezosynthesis. Waves that reach the cities’ shores could one day help produce useful chemicals, drive environmental remediation and generate clean fuels.

Media enquiries:

Steven Lee, Communications and Institutional Research Office, CityUHK (Tel: 3442 9945)

 

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SOURCE CITY UNIVERSITY OF HONG KONG

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ST Engineering iDirect and MBSat Partner to Build Next-Generation Sovereign Connectivity Services Across Oman and the Middle East

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Intuition ground system selected to support MBSat’s planned 2027 service launch, enabling accelerated deployment, dynamic resource management and scalable service growth

HERNDON, Va., Oct. 25, 2026 /PRNewswire/ — ST Engineering iDirect today announced a strategic partnership with Mohammed Al Barwani Satellite Company (MBSat), part of Mohammed Al Barwani Group, to provide the ground system technology foundation for MBSat’s next-generation satellite gateway and network operations across Oman and the wider Middle East region. Intuition will provide a flexible, software-defined foundation to support sovereign connectivity services, enabling efficient service deployment, dynamic resource management and scalable network operations.

Intuition will deliver a turnkey ground segment solution that accelerates deployment, simplifies operations and gives MBSat the flexibility to scale services as demand grows. The software-defined platform enables dynamic resource management, service automation and seamless integration with existing and future operational systems. The solution also includes Ka-band gateway infrastructure, service provisioning and management capabilities, open API integration frameworks, training and full-lifecycle support. Together, these capabilities will help MBSat launch and operate services efficiently while adapting to evolving market requirements.

The network will leverage capacity from MB Sat-1, a sovereign MicroGEO satellite, with planned service launch in 2027, to support flexible, scalable connectivity services across the region.

The partnership reflects growing investment in sovereign communications infrastructure across the Middle East as operators seek greater control over service delivery, network expansion and long-term technology evolution.

“This partnership represents an important milestone in our efforts to build an advanced satellite communications platform in Oman and the region,” said Ammar Al Rawahi, General Manager, MBSat. “Through our collaboration with ST Engineering iDirect, we are establishing the technical infrastructure required to launch services efficiently, respond to evolving customer needs and expand into new markets, supporting the sustainable long-term growth of our business.”

“We are providing MBSat with a flexible, software-defined ground platform that integrates with its existing operational environment,” said Sridhar Kuppanna, Chief Executive Officer, ST Engineering iDirect. “This enables more efficient service deployment and operations today, with the flexibility to scale, introduce new capabilities and evolve as requirements change.”

About ST Engineering iDirect

ST Engineering iDirect, a subsidiary of ST Engineering, is a global leader in satellite communications, providing technology and solutions that enable its customers to expand their business, differentiate their services and optimize their networks. Through its portfolio of ground infrastructure, intelligent networking and advanced satellite communications solutions, the company supports operators, service providers, governments and enterprises worldwide.

View original content to download multimedia:https://www.prnewswire.com/news-releases/st-engineering-idirect-and-mbsat-partner-to-build-next-generation-sovereign-connectivity-services-across-oman-and-the-middle-east-302918467.html

SOURCE ST Engineering iDirect

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ST Engineering iDirect and MBSat Partner to Build Next-Generation Sovereign Connectivity Services Across Oman and the Middle East

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Intuition ground system selected to support MBSat’s planned 2027 service launch, enabling accelerated deployment, dynamic resource management and scalable service growth

HERNDON, Va., Oct. 25, 2026 /PRNewswire/ — ST Engineering iDirect today announced a strategic partnership with Mohammed Al Barwani Satellite Company (MBSat), part of Mohammed Al Barwani Group, to provide the ground system technology foundation for MBSat’s next-generation satellite gateway and network operations across Oman and the wider Middle East region. Intuition will provide a flexible, software-defined foundation to support sovereign connectivity services, enabling efficient service deployment, dynamic resource management and scalable network operations.

Intuition will deliver a turnkey ground segment solution that accelerates deployment, simplifies operations and gives MBSat the flexibility to scale services as demand grows. The software-defined platform enables dynamic resource management, service automation and seamless integration with existing and future operational systems. The solution also includes Ka-band gateway infrastructure, service provisioning and management capabilities, open API integration frameworks, training and full-lifecycle support. Together, these capabilities will help MBSat launch and operate services efficiently while adapting to evolving market requirements.

The network will leverage capacity from MB Sat-1, a sovereign MicroGEO satellite, with planned service launch in 2027, to support flexible, scalable connectivity services across the region.

The partnership reflects growing investment in sovereign communications infrastructure across the Middle East as operators seek greater control over service delivery, network expansion and long-term technology evolution.

“This partnership represents an important milestone in our efforts to build an advanced satellite communications platform in Oman and the region,” said Ammar Al Rawahi, General Manager, MBSat. “Through our collaboration with ST Engineering iDirect, we are establishing the technical infrastructure required to launch services efficiently, respond to evolving customer needs and expand into new markets, supporting the sustainable long-term growth of our business.”

“We are providing MBSat with a flexible, software-defined ground platform that integrates with its existing operational environment,” said Sridhar Kuppanna, Chief Executive Officer, ST Engineering iDirect. “This enables more efficient service deployment and operations today, with the flexibility to scale, introduce new capabilities and evolve as requirements change.”

About ST Engineering iDirect

ST Engineering iDirect, a subsidiary of ST Engineering, is a global leader in satellite communications, providing technology and solutions that enable its customers to expand their business, differentiate their services and optimize their networks. Through its portfolio of ground infrastructure, intelligent networking and advanced satellite communications solutions, the company supports operators, service providers, governments and enterprises worldwide.

View original content to download multimedia:https://www.prnewswire.com/news-releases/st-engineering-idirect-and-mbsat-partner-to-build-next-generation-sovereign-connectivity-services-across-oman-and-the-middle-east-302918467.html

SOURCE ST Engineering iDirect

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Global Security & Technology Summit Unveils Month-Long Program of Activities Ahead of December Event

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RIYADH, Saudi Arabia, Oct. 24, 2026 /PRNewswire/ — The Organizing Committee of the Global Security & Technology Summit (GSTS) held an introductory session today at the Ministry of Interior’s headquarters in Riyadh, bringing together representatives from the government, private, and nonprofit sectors to introduce the program of activities leading up to the summit. The upcoming summit will be held in Riyadh under the patronage of HRH Prince Mohammed bin Salman bin Abdulaziz Al Saud, Crown Prince and Prime Minister, under the supervision of HRH Prince Abdulaziz bin Saud bin Naif bin Abdulaziz Al Saud, Minister of Interior, and organized by the Ministry of Interior in cooperation with Tuwaiq Academy.

During the session, the Organizing Committee presented the comprehensive GSTS program, comprising three key components: GSTS Month, running from November 1 to 30, 2026; the Global Security & Innovation Fair (SAIF), taking place from November 24 to 26, 2026; and the main Summit, scheduled for December 18 to 20, 2026, in Riyadh. Together, these events form an integrated program designed to advance security and technology innovation, strengthen national capabilities, and foster international cooperation.

GSTS Month will feature working groups, boot camps, training programs, knowledge-sharing sessions, and technical workshops across Saudi Arabia’s 13 administrative regions, delivered both in person and remotely in collaboration with specialized entities. The month-long program aims to develop national capabilities, identify emerging talent, enrich knowledge-sharing opportunities, and equip professionals with the knowledge and skills needed to develop innovative solutions to future security and technology challenges.

The main Summit will bring together global leaders, decision-makers, experts, and innovators to explore the future of security and technology, promote the integration of advanced technologies within the security sector, strengthen national capabilities, support innovation, and foster international cooperation, further positioning the Kingdom as a global hub for security and technology.

Showcasing the latest technological breakthroughs and security solutions, the summit will bring together government entities, private sector organizations, academic institutions, and research centers to facilitate knowledge exchange and collaboration across key fields, including cybersecurity, artificial intelligence (AI), the Internet of Things (IoT), smart security solutions, emerging technologies, and crisis management. The program will also feature main sessions, specialized discussions, and interactive exhibitions. Registration is available at gsts.sa.

Advisor to HRH the Minister of Interior and Chairman of the GSTS Organizing Committee, Ahmed Altowayan, stated that the summit builds on Saudi Arabia’s efforts to establish an advanced security and technology ecosystem focused on knowledge and innovation, keeping pace with rapid developments and future challenges.

Mr. Altowayan noted that the summit is a global platform for strengthening cooperation and exchanging expertise, anticipating future developments in security and technology, and developing strategic partnerships and innovative solutions that enhance the efficiency and readiness of security systems.

Vice Chairman of the GSTS Organizing Committee, Eng. Abdulaziz Alhammadi, said that the summit will offer a range of integrated programs and activities focused on enhancing national skills, encouraging innovation, and supporting international cooperation.

He added that GSTS Month will help build national capabilities, discover talent, and develop skills, with SAIF providing a platform for innovators and researchers from around the world to showcase leading technological solutions, while the main Summit will bring together leaders and experts to discuss the future of security and technology and explore new strategic partnership opportunities.

SAIF will take place at the Riyadh International Convention & Exhibition Center, bringing together innovators, researchers, technology talents, and industry experts from around the world to showcase promising innovations and projects across 14 fields of technology and innovation. The fair will provide opportunities to engage with project owners, including students, graduates, and entrepreneurs, and explore the different stages of innovation development through interactive zones, panel discussions on emerging security and innovation trends, and knowledge-sharing workshops led by specialists. Visitor registration is open to participants from within and outside the Kingdom through saifair.sa.

The introductory session also featured contributions from representatives of government, private, and nonprofit sector entities, alongside members of the media. Discussions focused on developing national capabilities in security and technology, strengthening students’ technical expertise, translating scientific research into practical solutions, and supporting Saudi companies in developing security and technology solutions and advancing digital transformation.

Organized by the Ministry of Interior in cooperation with Tuwaiq Academy, GSTS is produced by Tahaluf, with the Ministry of Education serving as Strategic Scientific Partner, Tahakom as Founding Partner, and Elm as Principal Partner.

Registration for participants from within and outside the Kingdom is available at gsts.sa.

Click here to view the media kit. 

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