HI - SPIN Engineering

09/11/2025

Between work there is sight seeing and travelling involved for leisure - take snorkeling gear, casual wear , and other item that suits you best.

22/08/2025

Travelling into a remote area to carry out scheduled inspections for the best Molnar Hoists .

11/08/2025

Electrodes

Definition

Electrodes are conductive materials (usually metals or carbon) that allow electric current to enter or leave an electrolyte during electrolysis.

Explanation

In electrolysis, electrodes are placed in an electrolyte solution or molten salt. When a direct current flows through the circuit, ions in the solution move toward the electrodes. The positive electrode is the anode, and the negative electrode is the cathode.

At the electrodes, oxidation (loss of electrons) and reduction (gain of electrons) occur. These reactions result in the release or deposition of substances.

Key Points

• Electrodes conduct electricity into/out of the electrolyte
• Anode (+) attracts anions (negative ions) → oxidation
• Cathode (–) attracts cations (positive ions) → reduction
• Can be inert (graphite, platinum) or reactive (copper, silver)
• Essential for redox reactions in electrolysis

Types of Electrodes

1. Inert Electrodes – Do not react (e.g., platinum, graphite)
2. Active Electrodes – Take part in the reaction (e.g., copper, zinc)

Examples

• Copper anode dissolving during copper refining
• Graphite electrodes producing hydrogen and oxygen from water
• Silver cathode receiving silver ions in electroplating

Applications / Relevance

• ⚡ Electrolysis of water, salts, and acids
• 🔋 Batteries and fuel cells
• ⚗️ Electroplating and metal refining
• 💍 Jewellery coating and industrial finishing

Question

What happens at the cathode during electrolysis?

Answer:
Positive ions (cations) gain electrons (reduction) and get deposited at the cathode.

02/08/2025

Carrying out task with perserverance.

We love our work and take extreme pride and that leads to improved result in every job performed.

17/07/2025

A mid of the year overhaul on a 10yr old 2P4T in POM Badili service centre.

11/05/2025

Apart from my routine, I als schedule to see some fascinating sites.

In the pictures,
Hotspring Matupit.
Rabaul the Japanse Tannel Hospital and Decapitating pit.

25/04/2025

Stay put, think big but start small,
stay on you lane.
You are master of your own destiny.

12/04/2025

We have carried out our half yearly repair and maintenance here in Badili Service Centre for a week and ending midday today.
Also found Mr Nigel, PMS service manager but also a fit know how boss, who was a bit impressed with, Dismantled LC fuel injection pump, replaced parts and set it right back onto this vehicle picture.

08/04/2025

Between thinking hard about how to settle work related issues and reporting back correctly to ones client is all one needs.

Peaceful Diftwood ,Mine bay's haven.

26/03/2025

Done a 6/12 monthly inspection for Toyota Vanimo , Sandaun Province.

08/02/2025

14/11/2024

One of out technicians carrying out Statutory Compliance in a remote Mine site.